Volume 7, 1999Third International Workshop on Vortex Flows and Related Numerical Methods
|Page(s)||313 - 324|
|Published online||15 August 2002|
Simulation of heat-vortex interaction by the diffusion velocity method
Department of Mechanical Engineering, Ritsumeikan University. Noji-Higashi, Shiga 525-8577, Japan
A new vortex scheme for simulating flows involving natural convection and interaction of temperature and vorticity is presented. The creation of vorticity from temperature is modeled either by creating a vortex pair from a temperature particle or by changing the strength of vortices according to the vorticity equation. The diffusion velocity method is used for simulating the diffusion of vorticity and temperature. The vortices of negative and positive strength are separately treated in diffusion process to avoid an unreasonably large diffusion velocity. Our results indicates that these techniques successfully simulate creation of vorticity from heat, diffusion and convection of temperature and vorticity, and interaction of them.
© EDP Sciences, ESAIM, 1999
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