Computational research on film cooling under rotating frame by an anisotropic turbulence model

作     者：Jianqin Zhu Kai Wang Chaoqun Nie 

作者机构：National Key Laboratory of Science and Technology on Aero-Engine Aero-ThermodynamicsSchool of Energy and Power EngineeringBeihang UniversityBeijing 100191China Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing 100190China 

出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)

年 卷 期：2013年第2卷第1期

页      面：20-29页

学科分类：080704[工学-流体机械及工程] 08[工学] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 080103[工学-流体力学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 0802[工学-机械工程] 0703[理学-化学] 0825[工学-航空宇航科学与技术] 0823[工学-交通运输工程] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Film cooling Turbulence model Rotation Coriolis force Centrifugal force 

摘      要：A new anisotropic k-o turbulence model was proposed in this *** new model,with the standard k-o model and the standard k-e model was embedded in our three-dimensional(3-D)Navier-Stokes code to compute rotational film *** addition,the theoretical and numerical analysis on the influence of the Coriolis and buoyancy forces induced by the rotation was discussed in *** findings of this study are as follows:⑴The new anisotropic k-o model preformed much better compared to its isotropic counterparts.(2)In the region of 6D-12D downstream the film hole,the numerical results of the new model were much closer to the experimental data than that in the region of 0-6D.(3)The constant density term can be balanced by the pressure gradient and would not influence the velocity and temperature *** the centrifugal buoyancy force and the Coriolis force would change the trajectory of cooling air and temperature distributions.