Results
Title

LARGE EDDY SIMULATION OF SEDIMENT-LADEN TURBULENT FLOW IN AN OPEN CHANNEL.

Authors

ZHANHONG WAN; ZHILIN SUN; ZHENJIANG YOU; QIYAN ZHANG

Abstract

Sediment transport in fully developed turbulent open channel flow has been investigated using large eddy simulation (LES) of the incompressible Navier–Stokes equations. The scalar transport equation of the sediments concentration, which is based on the continuous-phase approach, is adopted. The settling process is taken into account with a modified settling velocity appearing in the sediment concentration equation. A Smagorinsky model allowing for the interaction between the fluid flow and the suspended sediment is used to simulate the unresolved, subgrid scale terms. The LES results are compared with the experimental data, and good general agreement is achieved.

Subjects

SEDIMENT transport; SUSPENDED sediments; SEDIMENTS; TURBULENCE; TURBIDITY currents

Publication

International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2008, Vol 22, Issue 16, p2517

ISSN

0217-9792

Publication type

Academic Journal

DOI

10.1142/S0217979208039666