Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., University of Michigan, Ann Arbor 1996
  • M.S., University of Kansas 1991
  • B.S., University of Kansas 1989
• 

  Previous Appointments & Affiliations

  • Assistant Research Professor in the Department of Mechanical Engineering and Materials Science, Thomas Lord Department of Mechanical Engineering and Materials Science, Pratt School of Engineering 2009 - 2014
  • Assistant Research Professor of Mechanical Engineering and Materials Science, Thomas Lord Department of Mechanical Engineering and Materials Science, Pratt School of Engineering 1996 - 2008
• Expertise
• 

  Subject Headings

  • Aeroelasticity
  • Computational fluid dynamics
• Research
• 

  Selected Grants

  • Fluid Structural Thermal Interactions (FSTI) in Hypersonic Flow awarded by North Carolina State University 2019 - 2023
  • Data-driven physics-constrained model reduction of the Navier-Stokes equations awarded by University of Illinois at Urbana--Champaign 2017 - 2020
  • Reduce Order Airwake Modeling for Aircraft/Ship Integration Modeling and Simulation 2017 - 2018
  • Theoretical Prediction of Limit Cycle Oscillations in Support of Flight Flutter Testing awarded by Air Force Office of Scientific Research 2004 - 2007
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  External Relationships

  • HX5, LLC
• Publications & Artistic Works
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  Selected Publications

  • Academic Articles

    • Howison, J., J. Thomas, and K. Ekici. “Aeroelastic analysis of a wind turbine blade using the harmonic balance method.” Wind Energy 21, no. 4 (April 1, 2018): 226–41. https://doi.org/10.1002/we.2157.
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    • Besem, F. M., J. P. Thomas, R. E. Kielb, and E. H. Dowell. “An aeroelastic model for vortex-induced vibrating cylinders subject to frequency lock-in.” Journal of Fluids and Structures 61 (February 1, 2016): 42–59. https://doi.org/10.1016/j.jfluidstructs.2015.10.009.
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    • Besem, F. M., J. D. Kamrass, J. P. Thomas, D. Tang, and R. E. Kielb. “Vortex-Induced Vibration and Frequency Lock-In of an Airfoil at High Angles of Attack.” Journal of Fluids Engineering, Transactions of the Asme 138, no. 1 (January 1, 2016). https://doi.org/10.1115/1.4031134.
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    • Padmanabhan, M. A., E. H. Dowell, J. P. Thomas, and C. L. Pasiliao. “Store-induced limit-cycle oscillations due to nonlinear wing-store attachment.” Journal of Aircraft 53, no. 3 (January 1, 2016): 778–89. https://doi.org/10.2514/1.C033577.
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    • Clark, S. T., F. M. Besem, R. E. Kielb, and J. P. Thomas. “Developing a reduced-order model of nonsynchronous vibration in turbomachinery using proper-orthogonal decomposition methods.” Journal of Engineering for Gas Turbines and Power 137, no. 5 (May 1, 2015). https://doi.org/10.1115/1.4028675.
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    • Thomas, J. P., C. H. Custer, E. H. Dowell, K. C. Hall, and C. Corre. “Compact implementation strategy for a harmonic balance method within implicit flow solvers.” Aiaa Journal 51, no. 6 (June 1, 2013): 1374–81. https://doi.org/10.2514/1.J051823.
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    • Hall, K. C., K. Ekici, J. P. Thomas, and E. H. Dowell. “Harmonic balance methods applied to computational fluid dynamics problems.” International Journal of Computational Fluid Dynamics 27, no. 2 (February 1, 2013): 52–67. https://doi.org/10.1080/10618562.2012.742512.
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    • Thomas, J. P., and E. H. Dowell. “Airfoil transonic flow buffet calculations using the OVERFLOW 2 flow solver.” Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, December 1, 2011. https://doi.org/10.2514/6.2011-2077.
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    • Thomas, J. P., and O. Léonard. “Toward a high order throughflow - investigation of the nonlinear harmonic method coupled with an immersed boundary method for the modeling of the circumferential stresses.” Journal of Turbomachinery 134, no. 1 (May 31, 2011). https://doi.org/10.1115/1.4003256.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Using automatic differentiation to create a nonlinear reduced-order-model aerodynamic solver.” Aiaa Journal 48, no. 1 (January 1, 2010): 19–24. https://doi.org/10.2514/1.36414.
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    • Meingast, M., R. E. Kielb, and J. P. Thomas. “Preliminary flutter design method for supersonic low pressure turbines.” Proceedings of the Asme Turbo Expo 6, no. PART A (December 1, 2009): 507–15. https://doi.org/10.1115/GT2009-59177.
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    • Simon, J. F., J. P. Thomas, and O. Léonard. “On the role of the deterministic and circumferential stresses in throughflow calculations.” Journal of Turbomachinery 131, no. 3 (July 1, 2009). https://doi.org/10.1115/1.2992514.
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    • Ortner, K., A. Kohns, F. Turley, and J. Thomas. “Erosion Resistant Coatings for Aircraft Engines.” Vakuum in Forschung Und Praxis 21, no. 3 (June 1, 2009): 18–21. https://doi.org/10.1002/vipr.200900387.
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    • Dowell, E. H., J. P. Thomas, K. C. Hall, and C. M. Denegri. “Theoretical predictions of F-16 fighter limit cycle oscillations for flight flutter testing.” Journal of Aircraft 46, no. 5 (January 1, 2009): 1667–72. https://doi.org/10.2514/1.42352.
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    • Léonard, O., J. P. Thomas, and S. Borguet. “Ten years of experience with a small jet engine as a support for education.” Journal of Engineering for Gas Turbines and Power 131, no. 1 (January 1, 2009). https://doi.org/10.1115/1.2967487.
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    • Schwarz, J. B., E. H. Dowell, J. P. Thomas, K. C. Hall, R. D. Rausch, and R. E. Bartels. “Improved flutter boundary prediction for an isolated two-degree-of-freedom airfoil.” Journal of Aircraft 46, no. 6 (January 1, 2009): 2069–76. https://doi.org/10.2514/1.30703.
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    • Bakhle, M. A., J. P. Thomas, and T. S. R. Reddy. “Fan flutter computations using the harmonic balance method.” 44th Aiaa/Asme/Sae/Asee Joint Propulsion Conference and Exhibit, January 1, 2008. https://doi.org/10.2514/6.2008-4743.
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    • Dowell, E. H., K. C. Hall, J. P. Thomas, R. E. Kielb, M. A. Spiker, and C. M. Denegri. “A new solution method for unsteady flows around oscillating bluff bodies.” Solid Mechanics and Its Applications 8 (January 1, 2008): 37–44. https://doi.org/10.1007/978-1-4020-8630-4_4.
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    • Liu, L., E. H. Dowell, and J. P. Thomas. “A high dimensional harmonic balance approach for an aeroelastic airfoil with cubic restoring forces.” Journal of Fluids and Structures 23, no. 3 (April 1, 2007): 351–63. https://doi.org/10.1016/j.jfluidstructs.2006.09.005.
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    • Attar, P. J., E. H. Dowell, J. R. White, and J. P. Thomas. “Reduced order nonlinear system identification methodology.” Aiaa Journal 44, no. 8 (August 1, 2006): 1895–1904. https://doi.org/10.2514/1.16221.
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    • Liu, L., J. P. Thomas, E. H. Dowell, P. Attar, and K. C. Hall. “A comparison of classical and high dimensional harmonic balance approaches for a Duffing oscillator.” J. Comput. Phys. (Usa) 215, no. 1 (2006): 298–320. https://doi.org/10.1016/j.jcp.2005.10.026.
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    • Thomas Jeffrey, P., H. Dowell Earl, and C. Hall Kenneth. “Static/dynamic correction approach for reduced-order modeling of unsteady aerodynamics.” Journal of Aircraft 43, no. 4 (2006): 865–78.
    • Liu, L., E. H. Dowell, and J. P. Thomas. “Higher order harmonic balance analysis for limit cycle oscillations in an airfoil with cubic restoring forces.” Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference 3 (January 1, 2005): 1467–76. https://doi.org/10.2514/6.2005-1918.
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    • Thomas Jeffrey, P., C. Hall Kenneth, and H. Dowell Earl. “Discrete adjoint approach for modeling unsteady aerodynamic design sensitivities.” Aiaa Journal 43, no. 9 (2005): 1931–36.
    • Dowell, E. H., J. P. Thomas, and K. C. Hall. “Transonic limit cycle oscillation analysis using reduced order aerodynamic models.” Journal of Fluids and Structures 18, no. SUPPL (2004): 17–27. https://doi.org/10.1016/j.jfluidstructs.2003.07.018.
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    • Kholodar Denis, B., H. Dowell Earl, P. Thomas Jeffrey, and C. Hall Kenneth. “Limit-cycle oscillations of a typical airfoil in transonic flow.” Journal of Aircraft 41, no. 5 (2004): 1067–72.
    • Kholodar Denis, B., H. Dowell Earl, P. Thomas Jeffrey, and C. Hall Kenneth. “Improved understanding of transonic flutter: A three-parameter flutter surface.” Journal of Aircraft 41, no. 4 (2004): 911–17.
    • Thomas Jeffrey, P., H. Dowell Earl, and C. Hall Kenneth. “Modeling viscous transonic limit-cycle oscillation behavior using a harmonic balance approach.” Journal of Aircraft 41, no. 6 (2004): 1266–74.
    • Thomas Jeffrey, P., H. Dowell Earl, and C. Hall Kenneth. “Three-dimensional transonic aeroelasticity using proper orthogonal decomposition-based reduced-order models.” Journal of Aircraft 40, no. 3 (2003): 544–51.
    • Kholodar Denis, B., P. Thomas Jeffrey, H. Dowell Earl, and C. Hall Kenneth. “Parametric study of flutter for an airfoil in inviscid transonic flow.” Journal of Aircraft 40, no. 2 (2003): 303–13.
    • Hall Kenneth, C., P. Thomas Jeffrey, and W. S. Clark. “Computation of unsteady nonlinear flows in cascades using a harmonic balance technique.” Aiaa Journal 40, no. 5 (2002): 879–86.
    • Thomas Jeffrey, P., H. Dowell Earl, and C. Hall Kenneth. “Nonlinear inviscid aerodynamic effects on transonic divergence, flutter, and limit-cycle oscillations.” Aiaa Journal 40, no. 4 (2002): 638–46.
    • Hall Kenneth, C., P. Thomas Jeffrey, and H. Dowell Earl. “Proper orthogonal decomposition technique for transonic unsteady aerodynamic flows.” Aiaa Journal 38, no. 10 (2000): 1853–62.

  • Conference Papers

    • Brown, C., G. McGowan, K. Cooley, J. Deese, T. Josey, E. H. Dowell, and J. P. Thomas. “Convolution/Volterra Reduced-Order Modeling for Flutter and LCO Predictions in Highly Nonlinear Systems.” In Aiaa Science and Technology Forum and Exposition, Aiaa Scitech Forum 2022, 2022. https://doi.org/10.2514/6.2022-0991.
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    • Thomas, J. P., and E. H. Dowell. “Automatic differentiation based nonlinear reduced-order model with geometric gradient computation capability.” In Aiaa Scitech 2021 Forum, 1–17, 2021.
    • Thomas, J. P., and E. H. Dowell. “Nonlinear Aeroelastic Reduced-Order Modeling Approach with Geometric Gradient Computation Capability.” In Aiaa Aviation and Aeronautics Forum and Exposition, Aiaa Aviation Forum 2021, 2021. https://doi.org/10.2514/6.2021-3048.
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    • Thomas, J. P., and E. H. Dowell. “Methodology for numerically stabilizing a harmonic balance based aeroelastic solution approach.” In Aiaa Scitech 2020 Forum, Vol. 1 PartF, 2020. https://doi.org/10.2514/6.2020-1446.
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    • Thomas, J. P., and E. H. Dowell. “Discrete adjoint constrained design optimization approach for unsteady transonic aeroelasticity and buffet.” In Aiaa Aviation 2020 Forum, 1 PartF:1–13, 2020. https://doi.org/10.2514/6.2020-3137.
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    • Kim, T., J. P. Thomas, and E. H. Dowell. “Flutter prediction based on dynamic eigen decomposition of coupled CFD-CSD flight simulation.” In International Forum on Aeroelasticity and Structural Dynamics 2019, Ifasd 2019, 2019.
    • Kim, T., J. P. Thomas, and E. H. Dowell. “Flutter prediction based on dynamic eigen decomposition of coupled CFD-CSD flight simulation.” In International Forum on Aeroelasticity and Structural Dynamics 2019, Ifasd 2019, 2019.
    • Thomas, J. P., E. H. Dowell, M. Anderson, and G. Z. McGowan. “Progress toward efficient compression algorithms for application in flight simulation environments.” In Journal of Aerospace Information Systems, 16:278–88, 2019. https://doi.org/10.2514/1.I010688.
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    • Thomas, J. P., E. H. Dowell, M. Anderson, and G. Z. McGowan. “Progress toward efficient compression algorithms for application in flight simulation environments.” In 2018 Modeling and Simulation Technologies Conference, 2018. https://doi.org/10.2514/6.2018-4064.
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    • Thomas, J. P., and E. H. Dowell. “A fixed point iteration approach for harmonic balance based aeroelastic computations.” In Aiaa/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference, 2018, Vol. 0, 2018. https://doi.org/10.2514/6.2018-1446.
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    • Howison, J., J. P. Thomas, and K. Ekici. “Progress on a wind turbine aeroelastic solution methodology using harmonic balance.” In 33rd Wind Energy Symposium, 2015.
    • Thomas, J. P., and E. H. Dowell. “Discrete adjoint design optimization approach for increasing transonic buffet onset angle-of-attack.” In 16th Aiaa/Issmo Multidisciplinary Analysis and Optimization Conference, 2015.
    • Thomas, J. P., and E. H. Dowell. “Discrete adjoint design optimization approach for increasing transonic buffet onset angle-of-attack.” In 16th Aiaa/Issmo Multidisciplinary Analysis and Optimization Conference, 2015. https://doi.org/10.2514/6.2015-3435.
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    • Besem, F. M., J. D. Kamrass, J. P. Thomas, D. Tang, and R. E. Kielb. “Vortex-induced vibration and frequency lock-in of an airfoil at high angles of attack.” In Proceedings of the Asme Turbo Expo, Vol. 7B, 2014. https://doi.org/10.1115/GT2014-25648.
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    • Clark, S. T., F. M. Besem, R. E. Kielb, and J. P. Thomas. “Developing a reduced-order model of non-synchronous vibration in turbomachinery using proper-orthogonal decomposition methods.” In Proceedings of the Asme Turbo Expo, Vol. 7B, 2014. https://doi.org/10.1115/GT2014-25547.
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    • Thomas, J. P., and E. H. Dowell. “Discrete adjoint approach for aeroelastic design optimization.” In Aiaa Aviation 2014  15th Aiaa/Issmo Multidisciplinary Analysis and Optimization Conference, 2014.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Discrete adjoint method for nonlinear aeroelastic sensitivities for compressible and viscous flows.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 2013.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Discrete adjoint method for nonlinear aeroelastic sensitivities for compressible and viscous flows.” In 54th Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference, 2013. https://doi.org/10.2514/6.2013-1860.
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    • Ekici, K., K. C. Hall, H. Huang, and J. P. Thomas. “Stabilization of explicit flow solvers using a proper-orthogonal- decomposition technique.” In Aiaa Journal, 51:1095–1104, 2013. https://doi.org/10.2514/1.J051945.
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    • Ekici, K., K. C. Hall, and H. Huang. “Stabilization of explicit flow solvers using a proper orthogonal decomposition technique.” In 50th Aiaa Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2012. https://doi.org/10.2514/6.2012-1096.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “An automatic differentiation based nonlinear reduced order modeling technique for unsteady separated flows.” In 50th Aiaa Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2012. https://doi.org/10.2514/6.2012-1098.
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    • Thomas, J. P., C. H. Custer, E. H. Dowell, and K. C. Hall. “F-16 fighter aeroelastic computations using a harmonic balance implementation of the OVERFLOW 2 flow solver.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 2010.
    • Thomas, J. P., and O. Léonard. “Towards a high order throughflow. Part I: Investigating the effectiveness of a harmonic reconstruction for 3D flows.” In Proceedings of the Asme Turbo Expo, 7:831–41, 2010. https://doi.org/10.1115/GT2010-22841.
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    • Thomas, J. P., and O. Léonard. “Towards a high order throughflow. Part II: Investigation of the nonlinear harmonic method coupled with an immersed boundary method for the modeling of the circumferential stresses.” In Proceedings of the Asme Turbo Expo, 7:843–53, 2010. https://doi.org/10.1115/GT2010-22842.
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    • Spiker, M. A., R. E. Kielb, J. P. Thomas, and K. C. Hall. “Application of enforced motion to study 2-D cascade lock-in effect.” In 47th Aiaa Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2009. https://doi.org/10.2514/6.2009-892.
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    • Thomas, J. P., C. H. Custer, E. H. Dowell, and K. C. Hall. “Unsteady flow computation using a harmonic balance approach implemented about the OVERFLOW 2 flow solver.” In 19th Aiaa Computational Fluid Dynamics Conference, 2009. https://doi.org/10.2514/6.2009-4270.
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    • Dowell, E. H., K. C. Hall, J. P. Thomas, R. E. Kielb, M. A. Spiker, A. Li, and C. M. Denegri. “Reduced order models in unsteady aerodynamic models, aeroelasticity and molecular dynamics.” In Icas Secretariat  26th Congress of International Council of the Aeronautical Sciences 2008, Icas 2008, 1:4002–14, 2008.
    • Léonard, O., J. P. Thomas, and S. Borguet. “Ten years of experience with a small jet engine as a support for education.” In Proceedings of the Asme Turbo Expo, 7:11–21, 2008. https://doi.org/10.1115/GT2008-50172.
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    • Spiker, M. A., R. E. Kielb, K. C. Hall, and J. P. Thomas. “Efficient design method for non-synchronous vibrations using enforced motion.” In Proceedings of the Asme Turbo Expo, 5:735–47, 2008. https://doi.org/10.1115/GT2008-50599.
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    • Thomas, J. P., and O. Léonard. “Investigating circumferential non-uniformities in throughflow calculations using an harmonic reconstruction.” In Proceedings of the Asme Turbo Expo, 6:2229–41, 2008. https://doi.org/10.1115/GT2008-50328.
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    • Thomas, J. P., E. H. Dowels, K. C. Hall, and C. M. Denegri. “Virtual aeroelastic flight testing for the F-16 fighter with stores.” In Collection of Technical Papers  U.S. Air Force T and E Days, 2007(Test and Evaluation, 339–46, 2007.
    • Thomas, J. P., E. H. Dowell, K. C. Hall, and C. M. Denegri. “An investigation of the sensitivity of F-16 fighter flutter onset and limit cycle oscillations to uncertainties.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 5:3137–44, 2006.
    • Spiker, M. A., J. P. Thomas, K. C. Hall, R. E. Kielb, and E. H. Dowell. “Modeling cylinder flow vortex shedding with enforced motion using a harmonic balance approach.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 7:4549–58, 2006. https://doi.org/10.2514/6.2006-1965.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Using automatic differentiation to create a nonlinear reduced order model of a computational fluid dynamic solver.” In Collection of Technical Papers  11th Aiaa/Issmo Multidisciplinary Analysis and Optimization Conference, 4:2437–49, 2006. https://doi.org/10.2514/6.2006-7115.
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    • Thomas, J. P., E. H. Dowell, K. C. Hall, and C. M. Denegri. “Further investigation of modeling limit cycle oscillation behavior of the F-16 fighter using a harmonic balance approach.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 3:1457–66, 2005.
    • Dowell, E. H., K. C. Hall, J. P. Thomas, R. E. Kielb, M. A. Spiker, and C. M. Denegri. “Reduced order unsteady aerodynamic models and aeroelasticity.” In 12th International Congress on Sound and Vibration 2005, Icsv 2005, 1:47–64, 2005.
    • Carlson, H. A., J. Q. Feng, J. P. Thomas, R. E. Kielb, K. C. Hall, and E. H. Dowell. “Computational models for nonlinear aeroelasticity.” In 43rd Aiaa Aerospace Sciences Meeting and Exhibit  Meeting Papers, 4143–52, 2005. https://doi.org/10.2514/6.2005-1085.
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    • Hall, K. C., R. E. Kielb, K. Ekici, J. P. Thomas, and W. S. Clark. “Recent advancements in turbomachinery aeroelastic design analysis.” In 43rd Aiaa Aerospace Sciences Meeting and Exhibit  Meeting Papers, 11253–74, 2005. https://doi.org/10.2514/6.2005-14.
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    • Thomas, J. P., E. H. Dowell, K. C. Hall, and C. M. Denegri. “Modeling limit cycle oscillation behavior of the F-16 fighter using a harmonic balance approach.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 3:2044–50, 2004.
    • Hall, K. C., J. P. Thomas, K. Ekici, and D. M. Voytovych. “Frequency domain techniques for complex and nonlinear flows in turbomachinery.” In 33rd Aiaa Fluid Dynamics Conference and Exhibit, 2003.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Modeling limit cycle oscillations for an NLR 7301 airfoil aeroelastic configuration including correlation with experiment.” In 44th Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference, 2003.
    • Thomas, J. P., K. C. Hall, and E. H. Dowell. “A discrete adjoint approach for modeling unsteady aerodynamic design sensitivities.” In 41st Aerospace Sciences Meeting and Exhibit, 2003.
    • Thomas, J. P., K. C. Hall, and E. H. Dowell. “A harmonic balance approach for modeling nonlinear aeroelastic behavior of wings in transonic viscous flow.” In 44th Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference, 2003.
    • Thomas, J. P., K. C. Hall, and E. H. Dowell. “A harmonic balance approach for modeling nonlinear aeroelastic behavior of wings in transonic viscous flow.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 7:4779–84, 2003.
    • Kielb Robert, E., P. Thomas Jeffrey, W. Barter John, and C. Hall Kenneth. “Blade excitation by aerodynamic instabilities - A compressor blade study.” In American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) Igti, 4:399–406, 2003.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Modeling limit cycle oscillations for an NLR 7301 airfoil aeroelastic configuration including correlation with experiment.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 1:289–97, 2003. https://doi.org/10.2514/6.2003-1429.
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    • Thomas, J. P., K. C. Hall, and E. H. Dowell. “A discrete adjoint approach for modeling unsteady aerodynamic design sensitivities.” In 41st Aerospace Sciences Meeting and Exhibit, 2003. https://doi.org/10.2514/6.2003-41.
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    • Thomas, J. P., K. C. Hall, and E. H. Dowell. “A harmonic balance approach for modeling nonlinear aeroelastic behavior of wings in transonic viscous flow.” In 44th Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference, 2003. https://doi.org/10.2514/6.2003-1924.
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    • Kholodar, D. B., J. P. Thomas, E. H. Dowell, and K. C. Hall. “A parameter study of transonic airfoil flutter and limit cycle oscillation behavior.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 1:64–79, 2002.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “A harmonic balance approach for modeling three-dimensional nonlinear unsteady aerodynamics and aeroelasticity.” In Asme International Mechanical Engineering Congress and Exposition, Proceedings, 1323–34, 2002. https://doi.org/10.1115/IMECE2002-32532.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Modeling viscous transonic limit cycle oscillation behavior using a harmonic balance approach.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 3:1658–66, 2002. https://doi.org/10.2514/6.2002-1414.
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    • Dowell, E. H., J. P. Thomas, and K. C. Hall. “Transonic limit cycle oscillation analysis using reduced order aerodynamic models.” In 19th Aiaa Applied Aerodynamics Conference, 2001.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Three-Dimensional transonic Aeroelasticity using proper orthogonal decomposition based reduced order models.” In 19th Aiaa Applied Aerodynamics Conference, 2001.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Nonlinear inviscid aerodynamic effects on transonic divergence, flutter and limit cycle oscillations.” In 19th Aiaa Applied Aerodynamics Conference, 2001.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “A static/dynamic correction approach for reduced-order modeling of unsteady aerodynamics.” In 39th Aerospace Sciences Meeting and Exhibit, 2001.
    • Dowell, E. H., J. P. Thomas, and K. C. Hall. “Transonic limit cycle oscillation analysis using reduced order aerodynamic models.” In 19th Aiaa Applied Aerodynamics Conference, 2001. https://doi.org/10.2514/6.2001-1212.
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    • Dowell, E. H., J. P. Thomas, and K. C. Hall. “Transonic limit cycle oscillation analysis using reduced order aerodynamic models.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 1:255–63, 2001.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Three-Dimensional transonic Aeroelasticity using proper orthogonal decomposition based reduced order models.” In 19th Aiaa Applied Aerodynamics Conference, 2001. https://doi.org/10.2514/6.2001-1526.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Nonlinear inviscid aerodynamic effects on transonic divergence, flutter and limit cycle oscillations.” In 19th Aiaa Applied Aerodynamics Conference, 2001. https://doi.org/10.2514/6.2001-1209.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “A static/dynamic correction approach for reduced-order modeling of unsteady aerodynamics.” In 39th Aerospace Sciences Meeting and Exhibit, 2001. https://doi.org/10.2514/6.2001-855.
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    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Three-dimensional transonic aeroelasticity using proper orthogonal decomposition based reduced order models.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 4:2555–64, 2001.
    • Thomas, J. P., E. H. Dowell, and K. C. Hall. “Nonlinear inviscid aerodynamic effects on transonic divergence, flutter and limit cycle oscillations.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 1:230–41, 2001.
    • Dowell, E. H., K. C. Hall, J. P. Thomas, R. Florea, B. I. Epureanu, and J. Heeg. “Reduced order models in unsteady aerodynamics.” In Collection of Technical Papers  Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics and Materials Conference, 1:622–37, 1999.
    • Hall, K. C., J. P. Thomas, and E. H. Dowell. “Reduced-order modelling of unsteady small-disturbance flows using a frequency-domain proper orthogonal decomposition technique.” In 37th Aerospace Sciences Meeting and Exhibit, 1999.
    • Hall, K. C., J. P. Thomas, and E. H. Dowell. “Reduced-order modelling of unsteady small-disturbance flows using a frequency-domain proper orthogonal decomposition technique.” In 37th Aerospace Sciences Meeting and Exhibit, 1999. https://doi.org/10.2514/6.1999-655.
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    • Kirn, C., P. L. Roe, and J. P. Thomas. “Accurate schemes for advection and aeroacoustics.” In 13th Computational Fluid Dynamics Conference, 47–57, 1997.
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    • Thomas, J. P., C. Kim, and P. L. Roe. “Progress towards a new computational scheme for aeroacoustics.” In 12th Computational Fluid Dynamics Conference, 1325–38, 1995.
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    • Thomas, J. P., and P. L. Roe. “Development of non-dissipative numerical schemes for computational aeroacoustics.” In 11th Computational Fluid Dynamics Conference, 1993, 906–16, 1993. https://doi.org/10.2514/6.1993-3382.
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