Massimo Germano | Scholars@Duke

Massimo Germano
Adjunct Professor in the Department of Civil and Environmental Engineering

Massimo Germano was graduated in Physics at the University of Torino in 1965. In the same year he joined the Politecnico of Torino where he was finally appointed as Full Professor in Gasdynamics from 1981 to his retirement in 2012. His publications are devoted to many aspects of the fluid dynamics, they are mainly theoretical but always with a precise interest in the possible applications. Main results are the following. A system of orthogonal coordinates has been introduced in the study of the flow in helical pipes and more generally in pipes provided with a variable curvature and torsion of the central axis. This system of coordinates has been applied in many computations and it has contributed to clarify the effect of the curvature and the torsion on the axial and the secondary flows. In the field of turbulence modeling a new operational multiscale approach based on the generalized central moments and their properties has been produced. Principal application has been the dynamic procedure that significantly improves existing subgrid scale models for the Large Eddy Simulation of turbulent flows.

Current Research Interests

Turbulence in fluids and its representation. Multiscale decompositions of turbulent flows. The Navier-Stokes, the Large Eddy and the Reynolds equations. Reynolds modeling and subgrid scale modeling for the Large Eddy Simulation of turbulent flows. Hybrid RANS/LES modeling.

Current Appointments & Affiliations

Adjunct Professor in the Department of Civil and Environmental Engineering, Civil and Environmental Engineering, Pratt School of Engineering 2017

Contact Information

mg234@duke.edu

Background
Education, Training, & Certifications
- M.S., University of Turin (Italy) 1965
Publications & Artistic Works
Selected Publications
- Academic Articles
  - Germano, M. “Blending and nudging in fluid dynamics: Some simple observations.” Fluid Dynamics Research 49, no. 5 (August 11, 2017). https://doi.org/10.1088/1873-7005/aa7bc3.
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  - Katul, G. G., T. Banerjee, D. Cava, M. Germano, and A. Porporato. “Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis.” Physics of Fluids 28, no. 9 (September 1, 2016). https://doi.org/10.1063/1.4961963.
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  - Germano, M. “The similarity subgrid stresses associated to the approximate Van Cittert deconvolutions.” Physics of Fluids 27, no. 3 (March 19, 2015). https://doi.org/10.1063/1.4915620.
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  - Germano, M. “On the hybrid RANS-LES of compressible flows.” Notes on Numerical Fluid Mechanics and Multidisciplinary Design 130 (January 1, 2015): 253–63. https://doi.org/10.1007/978-3-319-15141-0_20.
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  - Germano, M., A. Abbá, R. Arina, and L. Bonaventura. “On the extension of the eddy viscosity model to compressible flows.” Physics of Fluids 26, no. 4 (April 14, 2014). https://doi.org/10.1063/1.4871292.
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  - Germano, Massimo. “Properties of the hybrid RANS/LES filter.” Theoretical and Computational Fluid Dynamics 17, no. 4 (August 2004): 225–31. https://doi.org/10.1007/s00162-004-0116-6.
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  - Kuerten, J. G. M., B. J. Geurts, A. W. Vreman, and M. Germano. “Dynamic inverse modeling and its testing in large-eddy simulations of the mixing layer.” Physics of Fluids 11, no. 12 (December 1999): 3778–85. https://doi.org/10.1063/1.870238.
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  - Germano, M. “A statistical formulation of the dynamic model.” Physics of Fluids 8, no. 2 (February 1996): 565–70. https://doi.org/10.1063/1.868841.
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  - Germano, M. “Turbulence: the filtering approach.” Journal of Fluid Mechanics 238 (May 1992): 325–36. https://doi.org/10.1017/s0022112092001733.
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  - Germano, Massimo, Ugo Piomelli, Parviz Moin, and William H. Cabot. “A dynamic subgrid‐scale eddy viscosity model.” Physics of Fluids A: Fluid Dynamics 3, no. 7 (July 1991): 1760–65. https://doi.org/10.1063/1.857955.
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  - Germano, M. “The Dean equations extended to a helical pipe flow.” Journal of Fluid Mechanics 203 (June 1989): 289–305. https://doi.org/10.1017/s0022112089001473.
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  - Germano, M. “A proposal for a redefinition of the turbulent stresses in the filtered Navier–Stokes equations.” Physics of Fluids 29, no. 7 (1986): 2323–2323. https://doi.org/10.1063/1.865568.
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  - Germano, M. “Differential filters of elliptic type.” Physics of Fluids 29, no. 6 (1986): 1757–1757. https://doi.org/10.1063/1.865650.
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  - Germano, M. “Differential filters for the large eddy numerical simulation of turbulent flows.” Physics of Fluids 29, no. 6 (1986): 1755–1755. https://doi.org/10.1063/1.865649.
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  - Germano, M. “On the effect of torsion on a helical pipe flow.” Journal of Fluid Mechanics 125, no. 1 (December 1982): 1–1. https://doi.org/10.1017/s0022112082003206.
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- Conference Papers
  - Nini, M., A. Abbà, M. Germano, and M. Restelli. “Analysis of a hybrid RANS/LES model using RANS reconstruction.” In Springer Proceedings in Physics, 165:83–86, 2016. https://doi.org/10.1007/978-3-319-29130-7_15.
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Education, Training, & Certifications

Selected Publications

Academic Articles

Conference Papers