{"id":169863,"date":"2023-05-15T08:32:58","date_gmt":"2023-05-15T08:32:58","guid":{"rendered":"\/knowledge\/forums\/topic\/what-is-the-influence-of-turbulence-damping-factor-for-eulerian-multiphase-flows-with-kw-sst\/"},"modified":"2023-07-31T12:28:59","modified_gmt":"2023-07-31T12:28:59","slug":"what-is-the-influence-of-turbulence-damping-factor-for-eulerian-multiphase-flows-with-kw-sst","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-influence-of-turbulence-damping-factor-for-eulerian-multiphase-flows-with-kw-sst\/","title":{"rendered":"What is the influence of turbulence damping factor for Eulerian multiphase flows with kw SST?"},"content":{"rendered":"

For 2-phase flows with strong transverse gradient of velocity, RANS 2-eq. models predict a large production of k through interface. This large production of k affects the levels of turbulent viscosity at interface. For k-\u03c9 models, a correction exists to increase the level of \u03c9 based on the gradient of volume fraction so that dissipation term is increased in k equation. This correction corresponds to the \u00ab\u00a0turbulence damping\u00a0\u00bb option in the turbulence model GUI. Such option has been tested on a simple configuration and the damping effects were observed on the turbulent kinetic energy level at the interface. See attached document for further details.<\/p>\n

Attachments:
\n1. 2055576.pdf<\/a><\/p>\n","protected":false},"template":"","class_list":["post-169863","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-mp-free-surface-flow","topic-tag-other","topic-tag-turbulence"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t