合肥工业大学学报（自然科学版）
閤肥工業大學學報（自然科學版）
합비공업대학학보（자연과학판）
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2013年
9期
1038-1041
,共4页
高超音速%高负荷风扇%数值仿真%增压原理
高超音速%高負荷風扇%數值倣真%增壓原理
고초음속%고부하풍선%수치방진%증압원리
hypersonic speed%highly loaded fan%numerical simulation%principle of pressure boosting
为适应飞机对高超音速的要求及高超音速飞行器的发展，文章利用NUMECA三维数值仿真软件，对某型高负荷单级风扇进行地面和高空20 km、M a为4的2种工况性能评估和流场分析。结果表明：从地面标准条件升至高空高速条件后，风扇流量衰减37％，峰值压比下降36％，峰值效率增大6.25％；风扇进口来流衰减为亚音速流，导致通过激波增压的超音速叶栅对来流的加功增压能力急剧下降，进而引起整级风扇性能的下降。
為適應飛機對高超音速的要求及高超音速飛行器的髮展，文章利用NUMECA三維數值倣真軟件，對某型高負荷單級風扇進行地麵和高空20 km、M a為4的2種工況性能評估和流場分析。結果錶明：從地麵標準條件升至高空高速條件後，風扇流量衰減37％，峰值壓比下降36％，峰值效率增大6.25％；風扇進口來流衰減為亞音速流，導緻通過激波增壓的超音速葉柵對來流的加功增壓能力急劇下降，進而引起整級風扇性能的下降。
위괄응비궤대고초음속적요구급고초음속비행기적발전，문장이용NUMECA삼유수치방진연건，대모형고부하단급풍선진행지면화고공20 km、M a위4적2충공황성능평고화류장분석。결과표명：종지면표준조건승지고공고속조건후，풍선류량쇠감37％，봉치압비하강36％，봉치효솔증대6.25％；풍선진구래류쇠감위아음속류，도치통과격파증압적초음속협책대래류적가공증압능력급극하강，진이인기정급풍선성능적하강。
According to high-Mach requirements of aircraft and the development of high-Mach aerial ve-hicle ,a highly loaded single stage fan on 0 km-0 Mach and 20 km-4 Mach operating conditions were simulated using three-dimensional numerical simulation software NUMECA .The results show that from the standard condition to high-altitude and high-speed condition ,the mass flow of fan decreased by 37% ,the peak pressure radio decreased by 36% ,and the peak efficiency increased by 6.25% .Be-sides ,the mass flow of fan inlet becomes subsonic ,w hich results in the boosting ability of supersonic cascade rapidly decreasing and the performance of the w hole fan reducing .
