Two‐Equation Turbulence Model for Flow in Trenches
- 1 July 1983
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Hydraulic Engineering
- Vol. 109 (7), 941-958
- https://doi.org/10.1061/(asce)0733-9429(1983)109:7(941)
Abstract
Steady recirculating flow is described by means of a mathematical model based on the full unsteady Reynolds equations and the model for turbulence closure. The model is applied to the flow in a steep‐sided trench perpendicular to the main flow direction. Inlet profiles are taken with reference to developed channel flow. For the wall boundary a local equilibrium is assumed, yielding among others a logarithmic behavior for the mean flow velocity. The constants of the model are related to the roughness conditions. A sensitivity study is reported to identify the relative importance of the various constants and inlet conditions. Numerical results are compared with laboratory experiments.
Keywords
This publication has 8 references indexed in Scilit:
- A finite element analysis of flow over a backward facing stepComputers & Fluids, 1981
- Turbulence Model for Flow over Dredged ChannelsJournal of the Hydraulics Division, 1981
- Coefficient Of Friction In Conduits With Large RoughnessJournal of Hydraulic Research, 1981
- Predictions of two-dimensional boundary layers with the aid of the k-ϵ model of turbulenceComputer Methods in Applied Mechanics and Engineering, 1981
- Model for Suspended Sediment TransportJournal of the Hydraulics Division, 1979
- The numerical computation of turbulent flowsComputer Methods in Applied Mechanics and Engineering, 1974
- Numerical Solution of the Navier-Stokes EquationsMathematics of Computation, 1968
- Some roughness-concentration effects on boundary resistanceLa Houille Blanche, 1964