车用发动机
車用髮動機
차용발동궤
2013年
5期
33-38
,共6页
王晓春%葛炜%卞尔保%杨磊%吴新涛%徐思友%郭然%桑丹
王曉春%葛煒%卞爾保%楊磊%吳新濤%徐思友%郭然%桑丹
왕효춘%갈위%변이보%양뢰%오신도%서사우%곽연%상단
两级离心压气机%失速%堵塞%流场分析%仿真
兩級離心壓氣機%失速%堵塞%流場分析%倣真
량급리심압기궤%실속%도새%류장분석%방진
two-stage centrifugal compressor%stall%chock%flow field analysis%simulation
针对一款新型两级离心压气机，利用Concepts NREC软件完成了其一维设计，采用NUMECA软件进行了三维数值仿真，并将仿真结果与试验结果进行了对比分析，模拟压比与试验压比最大误差在3％以内，流量最大误差在5％以内。阐述了两级离心压气机在不同转速下失速、高效、堵塞3个工况点的内部流场情况，给出了压气机进一步优化的方向。
針對一款新型兩級離心壓氣機，利用Concepts NREC軟件完成瞭其一維設計，採用NUMECA軟件進行瞭三維數值倣真，併將倣真結果與試驗結果進行瞭對比分析，模擬壓比與試驗壓比最大誤差在3％以內，流量最大誤差在5％以內。闡述瞭兩級離心壓氣機在不同轉速下失速、高效、堵塞3箇工況點的內部流場情況，給齣瞭壓氣機進一步優化的方嚮。
침대일관신형량급리심압기궤，이용Concepts NREC연건완성료기일유설계，채용NUMECA연건진행료삼유수치방진，병장방진결과여시험결과진행료대비분석，모의압비여시험압비최대오차재3％이내，류량최대오차재5％이내。천술료량급리심압기궤재불동전속하실속、고효、도새3개공황점적내부류장정황，급출료압기궤진일보우화적방향。
One dimension design was achieved with Concepts NREC software and the 3D simulation was conducted with NU-MECA software for a new two-stage centrifugal compressor and the simulation and experimental results were compared and an-alyzed .The maximum difference of pressure ratio and flow between simulation and experiment was within 3% and 5% respec-tively .The internal flow fields of stall ,high efficiency and chock under different speeds were discussed and the further direction of optimization was proposed .
