Skip to main content

One-dimensional particle tracking with streamline preserving junctions for flows in channel networks

Publication ,  Journal Article
Sridharan, VK; Monismith, SG; Fong, DA; Hench, JL
Published in: Journal of Hydraulic Engineering
February 1, 2018

A pseudo-three-dimensional particle tracking model of drifter paths has been developed to study the movement of scalars through a complex network of tidal channels and junctions. To better simulate dispersion caused by bifurcation and merging at junctions, a localized model is proposed in which particles move along potential flow streamlines through junctions. The model is applied to the Sacramento- San Joaquin Delta in the California Central Valley, and the approach reproduces the observed ultimate fate of the endangered native fish Delta smelt more accurately than a model that fully randomizes particle positions at junctions. The new model also reproduces the very large dispersion that has been previously inferred from Delta-wide heat balances; this large dispersion appears to be associated with flow splits at junctions. Overall, the streamline-following model is likely to be more accurate for long-term planning and management simulations of such complex estuaries than more commonly used cross-sectionally averaged Lagrangian transport equation solvers, which randomize concentration distributions of scalars at junctions, and thereby do not reproduce the increased dispersion mechanisms.

Duke Scholars

Published In

Journal of Hydraulic Engineering

EISSN

1943-7900

ISSN

0733-9429

Publication Date

February 1, 2018

Volume

144

Issue

2

Related Subject Headings

  • Environmental Engineering
  • 4005 Civil engineering
  • 0905 Civil Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Sridharan, V. K., Monismith, S. G., Fong, D. A., & Hench, J. L. (2018). One-dimensional particle tracking with streamline preserving junctions for flows in channel networks. Journal of Hydraulic Engineering, 144(2).
Sridharan, V. K., S. G. Monismith, D. A. Fong, and J. L. Hench. “One-dimensional particle tracking with streamline preserving junctions for flows in channel networks.” Journal of Hydraulic Engineering 144, no. 2 (February 1, 2018).
Sridharan VK, Monismith SG, Fong DA, Hench JL. One-dimensional particle tracking with streamline preserving junctions for flows in channel networks. Journal of Hydraulic Engineering. 2018 Feb 1;144(2).
Sridharan, V. K., et al. “One-dimensional particle tracking with streamline preserving junctions for flows in channel networks.” Journal of Hydraulic Engineering, vol. 144, no. 2, Feb. 2018.
Sridharan VK, Monismith SG, Fong DA, Hench JL. One-dimensional particle tracking with streamline preserving junctions for flows in channel networks. Journal of Hydraulic Engineering. 2018 Feb 1;144(2).

Published In

Journal of Hydraulic Engineering

EISSN

1943-7900

ISSN

0733-9429

Publication Date

February 1, 2018

Volume

144

Issue

2

Related Subject Headings

  • Environmental Engineering
  • 4005 Civil engineering
  • 0905 Civil Engineering