Numerical modeling of heat transfer and fluid flow in rotor-stator cavities with throughflow

摘要

The present study considers the numerical modeling of the turbulent flow in a rotor-stator cavity subjected to a superimposed throughflow with heat transfer. Numerical predictions based on one-point statistical modeling using a low Reynolds number second-order full stress transport closure (RSM) are compared with experimental data available in the literature. Considering small temperature differences, density variations can be here neglected which leads to dissociate the dynamical flow field from the heat transfer process. The turbulent flux is approximated by a gradient hypothesis with tensorial eddy diffusivity coefficient.