LES データに基づく熱連成解析手法の予測性能改善に向けた検討

抄録

A numerical method based on turbulence statistics obtained by LES (Large Eddy Simulation) was proposed to predict time-mean temperature field of conjugate heat transfer problem in complex turbulent flows. For the evaluation of turbulent heat flux in the time-mean field, a state-of-art heat flux model was newly adopted to enhance the prediction capability of time-mean temperature fields. Turbulence kinetic energy was estimated by the approximate budget of transport equation for turbulence kinetic energy. It is confirmed that prediction of dissipation rate of turbulence kinetic energy was improved.