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  本文選題：輪盤側空腔 + 流動結構�。� 參考：《工程熱物理學報》2016年11期

【摘要】：本文以離心壓縮機輪盤側空腔流域為研究對象,通過數值計算,研究了設計工況下空腔流動結構及對主流區(qū)域的影響機制。結果表明,空腔及密封內部流動表現為四類旋渦結構;空腔流動對葉輪內部流動及氣動性能的影響較小,但明顯增加了擴壓器內的流動損失,致使壓縮機級性能顯著下降。研究工作為深入了解空腔與通流部件間的相互影響規(guī)律提供理論依據,為完善離心壓縮機氣動性能預測模型奠定基礎。
[Abstract]:In this paper, the cavity flow structure and the influence mechanism on the mainstream region under design conditions are studied by numerical calculation, taking the lateral cavity basin of centrifugal compressor wheel disk as the research object. The results show that the flow in the cavity and seal shows four kinds of vortex structure, and the flow in the cavity has little effect on the flow and aerodynamic performance of the impeller, but the flow loss in the diffuser is obviously increased, and the compressor stage performance is obviously decreased. The research provides a theoretical basis for further understanding the interaction between cavity and flow passage components, and lays a foundation for improving the prediction model of centrifugal compressor aerodynamic performance.
【作者單位】： 西安交通大學能源與動力工程學院;沈陽鼓風機集團股份有限公司;
【基金】：國家科技支撐計劃項目課題(No.2012BAA08B06) 教育部博士點基金項目(No.20120201110064)
【分類號】：TH452

【參考文獻】

相關期刊論文 前1條

1 ;Influences of cavity leakage on the design of low flow coefficient centrifugal impeller[J];Science China Technological Sciences;2011年02期

【共引文獻】

相關期刊論文 前2條

1 秦瑞鴻;孫一頡;王晟e，

本文編號：1833032