Flow over dunes

This case is a simulation of water flow over a dune. Two geometries were used: One from the University of Iowa, USA, and the other from the University of Auckland, New Zealand. The figures below shows the results from a run with the k-epsilon model on the dunes from Auckland. Data from the case was given by Coleman (2006).

Horizontal water velocity.

Vertical water velocity.

Pressure.

Turbulent eddy-viscosity.

Turbulent kinetic energy.

The research is being carried out in cooparation with Dr. Thorsten Stösser at Georgia Institute of Technology and Prof. Wolfgang Rodi at the University of Karlsruhe.

References:

Coleman, S. E., Nikora, V. I., McLean, S. R., Clunie, T. M., Svhlicke, T. and Melville, B. W. (2006) “Equilibrium hydrodynamics concept for developing dunes”, Physics of Fluids, Vol. 18. 105104.

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This page was last updated: 5 December 2007