Two‐Equation Turbulence Model for Flow in Trenches
Publication: Journal of Hydraulic Engineering
Volume 109, Issue 7
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.
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Published In
Journal of Hydraulic Engineering
Volume 109 • Issue 7 • July 1983
Pages: 941 - 958
Copyright
Copyright © 1983 ASCE.
History
Published online: Jul 1, 1983
Published in print: Jul 1983
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