< Back to previous page
Project
Numerical simulation of expanding swirling flows with a hybrid RANS/LES turbulence model
Vortex precession and vortex breakdown in swirling abruptly expanding jets are simulated with a hybrid RANS-LES turbulence model. In the core of the flow, coarse grid LES is used with an e-model as subgrid model (1 dynamic euation). In wall vicinity, the same model is used as RANS model with a mixed low Reynolds number and wall function description.
Date:15 Oct 2007 → 30 Sep 2008
Keywords:hybrid RANS-LES turbulence model, precession, expanding swirling flow, vortex breakdown
Disciplines:Energy generation, conversion and storage engineering, Applied mathematics in specific fields, Fluid mechanics, Energy conversion