浸み出し冷却の数値解析における多孔質表面のモデル化

摘要

We performed CFD analyses for the transpiration cooling method for reentry vehicles and compared the CFD results with the experimental results. To express transpiration of cooling gas from the microporous surface, we developed a new boundary condition which included effect of porosity of heat resisting material made of porous materials. Our present CFD results using this boundary condition showed that temperature of transpiration gas was not necessarily equal to the surface temperature and that the temperature averaged all over the surface was close to the experimental results.