Numerical Study of Effect of Compressor Swirling Flow on Combustor Design in a MTE

作     者：MU Yong WANG Chengdong LIU Cunxi LIU Fuqiang HU Chunyan XU Gang ZHU Junqiang 

作者机构：Key Laboratory of Light-duty Gas-turbineInstitute of Engineering ThermophysicsChinese Academy of SciencesBeijing100190China University of Chinese Academy of SciencesBeijing 100190 China Institute of Qingdao Light-duty Gas-turbine Qingdao266000China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2017年第26卷第4期

页      面：349-354页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by National Natural Science Foundation of China with project No.51406202 

主　　题：Combustor CFD Compressor exit flow angle Micro Turbojet Engine (MTE) 

摘      要：An effect of the swirling flow on the combustion performance is studied by the computational fluid dynamics(CFD) in a micro-gas turbine with a centrifugal compressor, dump diffuser and forward-flow combustor. The distributions of air mass and the Temperature Pattern Factor(as: Overall Temperature Distribution Factor-OTDF) in outlet are investigated with two different swirling angles of compressed air as 0° and 15° in three combustors. The results show that the influences of swirling flow on the air distribution and OTDF cannot be neglected. Compared with no-swirling flow, the air through outer liner is more, and the air through the inner liner is less, and the pressure loss is bigger under the swirling condition in the same combustor. The Temperature Pattern Factor changes under the different swirling conditions.