STREMR: Numerical model for depth-averaged incompressible flow
Abstract
The STREMR computer code is a two-dimensional model for depth-averaged incompressible flow. It accommodates irregular boundaries and nonuniform bathymetry, and it includes empirical corrections for turbulence and secondary flow. Although STREMR uses a rigid-lid surface approximation, the resulting pressure is equivalent to the displacement of a free surface. Thus, the code can be used to model free-surface flow wherever the local Froude number is 0.5 or less. STREMR uses a finite-volume scheme to discretize and solve the governing equations for primary flow, secondary flow, and turbulence energy and dissipation rate. The turbulence equations are taken from the standard k-Epsilon turbulence model, and the equation for secondary flow is developed herein. Appendices to this report summarize the principal equations, as well as the procedures used for their discrete solution.
- Publication:
-
Final Report Army Engineer Waterways Experiment Station
- Pub Date:
- September 1993
- Bibcode:
- 1993army.reptR....R
- Keywords:
-
- Applications Programs (Computers);
- Computational Fluid Dynamics;
- Finite Volume Method;
- Incompressible Flow;
- K-Epsilon Turbulence Model;
- Secondary Flow;
- Turbulence;
- Turbulent Flow;
- Two Dimensional Models;
- Bathymeters;
- Computational Grids;
- Eddy Viscosity;
- Froude Number;
- Mathematical Models;
- Spherical Coordinates;
- Two Dimensional Flow;
- Fluid Mechanics and Heat Transfer