Root Cause Investigation of a Nonphysical Solution of a Time Domain Harmonic Balance Solver

文档名：Root Cause Investigation of a Nonphysical Solution of a Time Domain Harmonic Balance Solver
Abstract：Thetimedomainharmonicbalancemethodisanattractivereducedordermethodofanalyzingunsteadyflowforturbomachines.However,themethodcanadmitnon-physicalsolutions.Non-physicalsolutionswereencounteredfromathree-blade-rowcompressorconfigurationinatimedomainharmonicbalanceanalysis.Thispaperaimstoinvestigatetherootcauseofthenon-physicalsolutions.Theinvestigationinvolvesseveralstrategies,whichincludeincreasingthenumberofharmonics,increasingthenumberoftimeinstants,includingscatteredmodes,includingtherotor-rotorinteraction,andtheuseofanewmethod-theapproximatetimedomainnonlinearharmonicmethod.Numericalanalysespertinenttoeachstrategyarepresentedtorevealtherootcauseofthenon-physicalsolution.Itisfoundthatthenonlinearinteractionofunsteadyflowcomponentswithdifferentfundamentalfrequenciesisthecauseofthenon-physicalsolution.Thenon-physicalsolutioncanbeeliminatedbyincorporatingextrascatteredmodesorusingtheapproximatetimedomainnonlinearharmonicmethod.

作者：SenZhang   Ding-xiWang Author：SenZhang   Ding-xiWang
作者单位：SchoolofPowerandEnergy,NorthwesternPolytechnicalUniversitySchoolofPowerandEnergy,NorthwesternPolytechnicalUniversity;ShaanxiKeyLaboratoryofInternalAerodynamicsinAero-engines,NorthwesternPolytechnicalUniversity
刊名：风机技术
Journal：Compressor,Blower&FanTechnology
年，卷(期)：2024, 66(2)
分类号：
Keywords：TheTimeDomainHarmonicBalanceMethod  Non-physicalSolution  TurbomachineryBladeRowInteraction  
机标分类号：R766TQ325.8O189.1
在线出版日期：2024年5月21日
基金项目：RootCauseInvestigationofaNon-physicalSolutionofaTimeDomainHarmonicBalanceSolver[
期刊论文]  风机技术--2024, 66(2)SenZhang  Ding-xiWangThetimedomainharmonicbalancemethodisanattractivereducedordermethodofanalyzingunsteadyflowforturbomachines.However,themethodcanadmitnon-physicalsolutions.Non-physicalsolutionswer...参考文献和引证文献
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