Numerical study of effect of compressor swirling flow on combustor design in a MTE |
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| Authors: | Yong Mu Chengdong Wang Cunxi Liu Fuqiang Liu Chunyan Hu Gang Xu Junqiang Zhu |
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| Affiliation: | 1. University of Chinese Academy of Sciences, Beijing 100190 China;2. Key Laboratory of Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, 100190, China;University of Chinese Academy of Sciences, Beijing 100190 China |
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| Abstract: | 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. |
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| Keywords: | Combustor CFD Compressor exit flow angle Micro Turbojet Engine (MTE) |
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