Common Contracts
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DOI: 10.17223/19988621/64/4March 10th, 2024
Inflow boundary conditions are obtained from free surface level and relief data. At the inlet boundary, longitudinal velocity is set to a constant obtained from empirical data for the total discharge of the flow. Because water depth is equal to zero on the river boundary, no wall functions are used and no-slip and no-flow conditions for velocity components are used at wet–dry boundaries. Turbulence kinetic energy and its dissipa- tion fluxes are set to zero at the boundary faces. At the outflow boundary, simple gradi- ent conditions are set for both velocity components and turbulence parameters.
