{"title":"跨声速压气机转子近失速非定常流场的正交分解研究","authors":"Z. Liu","doi":"10.1145/3544109.3544112","DOIUrl":null,"url":null,"abstract":"The unsteady numerical simulations are conducted to research the tip clearance flow characteristic at near stall of a transonic compressor rotor. Based on the simulation results, decompose the flow fields by proper orthogonal decomposition (POD). Itsuccessfully captures theoscillation frequency 6.83kHz of the tip flow field with huge scale oscillation structures at blade leading and pressure side reveal the unsteady flow field nature. Through the reconstructed flow fields, it finds that the oscillation behaves as a circumference wave in the blade passages.","PeriodicalId":187064,"journal":{"name":"Proceedings of the 3rd Asia-Pacific Conference on Image Processing, Electronics and Computers","volume":"13 6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Unsteady Flow Field Investigations at Near Stall for a Transonic Compressor Rotor by Proper Orthogonal Decomposition\",\"authors\":\"Z. Liu\",\"doi\":\"10.1145/3544109.3544112\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The unsteady numerical simulations are conducted to research the tip clearance flow characteristic at near stall of a transonic compressor rotor. Based on the simulation results, decompose the flow fields by proper orthogonal decomposition (POD). Itsuccessfully captures theoscillation frequency 6.83kHz of the tip flow field with huge scale oscillation structures at blade leading and pressure side reveal the unsteady flow field nature. Through the reconstructed flow fields, it finds that the oscillation behaves as a circumference wave in the blade passages.\",\"PeriodicalId\":187064,\"journal\":{\"name\":\"Proceedings of the 3rd Asia-Pacific Conference on Image Processing, Electronics and Computers\",\"volume\":\"13 6 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-04-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 3rd Asia-Pacific Conference on Image Processing, Electronics and Computers\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/3544109.3544112\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 3rd Asia-Pacific Conference on Image Processing, Electronics and Computers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3544109.3544112","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Unsteady Flow Field Investigations at Near Stall for a Transonic Compressor Rotor by Proper Orthogonal Decomposition
The unsteady numerical simulations are conducted to research the tip clearance flow characteristic at near stall of a transonic compressor rotor. Based on the simulation results, decompose the flow fields by proper orthogonal decomposition (POD). Itsuccessfully captures theoscillation frequency 6.83kHz of the tip flow field with huge scale oscillation structures at blade leading and pressure side reveal the unsteady flow field nature. Through the reconstructed flow fields, it finds that the oscillation behaves as a circumference wave in the blade passages.
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