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| Simulation Analysis of Exhaust Drainage and Ejector Spray Cooling of Aircraft Engine Start |
| Received:April 07, 2020 Revised:May 20, 2020 |
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| DOI：10.7643/issn.1672-9242.2020.12.017 |
| KeyWord:climatic environment test facility aircraft engine start exhaust emissions spray cooling simulation calculation |
| Author | Institution |
| LI Dong-mei |
Aircraft Strength Research Institute, Xi’an , China |
| REN Zhan-peng |
Aircraft Strength Research Institute, Xi’an , China |
| MA Jian-jun |
Aircraft Strength Research Institute, Xi’an , China |
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| Abstract: |
| The work aims to discharge the high-temperature and high-noise exhaust gas generated by theclimatic environment test facilityduringtheaircraft engine startup test smoothly in real time, so as to maintain the stability of the test environment, prevent poor exhaust or high-temperature exhaust back-flow from damaging the test and facilities and ensure the safety and reliability of the test.A set of start-up exhaust drainage spray cooling was designed to carry out, CFD numerical simulation on key gas ejector spray cooling.The jet ring aperturre, spray angle and distribution directly affected the effect of spray atomisation and cooling.The parameters of spray ring that can meet the temperature distribution at the outlet of exhaust emission tower during engine start are obtained, which can guide the detailed design of spray ring of drain pipe. |
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