摘要
NASArotor37wasusedasablindtestcaseforturbomachineryCFDbytheTurbomachineryCommitteeoftheIGTI.Therotorisatransoniccompressorwithatipspeedof454m/s(1500ft/s)andarelativelyhighpressureratioof2.1.Itwastestedinisolationwithacircumferentiallyuniforminletflowsothattheflowthroughitshouldbesteadyapartfromandeffectsofpassagetopassagegeometryvariationandmechanicalvibration.Assuchitrepresentsthesimplestpossibletypeoftestforthree-dimensionalturbomachineryflowsolvers.Howerver,therotorstillpresentsarealchallengeto3Dviscousflowsolversbecausetheshockwave-boudarylayerinteractionisstrongandtheeffectsofviscosityaredominantindeterminingtheflowdeviationandhencethepressureration.Elevenblindsolutionsweresubmittewdandinadditionanon-blindsolutionwasusedtopreparefortheexercies.ThispaperreviewstheflowinthetestcaseandthecomparisonsoftheCFDsolutionswiththetestdata.LessonsforboththeFlowphysicsintransonicfansandfortheapplicationofCFDtosuchmachinesarepointedout.
出版日期
1997年01月11日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)