第48卷第1期2024年1月doi:10.11832/j.issn.1000-4858.2024.01.007摘要：以高压圆盘气体轴承平行间隙中一维可压缩理想流动分析结果为基础，在考虑平行圆盘间隙内面积变化、壁面摩擦和热量输入时，通过理论推导及程序编制，利用数值计算方法得到了平行气膜区气膜对称线上一维模型的马赫数、静温和静压的分布规律。结果表明：对于一维模型而言，气膜对称线上的马赫数始终呈现下降的趋势，静温始终呈现上升的趋势，静压呈现先上升再缓慢下降的趋势；在整个平行气膜间隙中，热量的输入会导致马赫数下降的速率减缓，当热流密度不大时，马赫数受热量输入的影响很小，而热流密度较大时，热量输入对马赫数有较明显的影响；静温受热量输入的影响很大,且热流密度越大，温度上升的越明显，静压受热量输入的影响很小。关键词：高压圆盘气体轴承；平行间隙；一维定常流动；热流密度；数值计算方法中图分类号：TH138;TH133V211文献标志码：B文章编号：1000-4858(2024)01-0056-07AnalysisoftheInfluenceofHeatFluxonOneDimensionalCompressibleFlowinParallelDiscClearance(1.KeyLaboratoryofMetallurgicalEquipmentandControlTechnology,MinistryofEducation,WuhanUniversityofScienceandTechnology,Wuhan,Hubei430081;2.HubeiKeyLaboratoryofMechanicalTransmissionandManufacturingEngineering,WuhanUniversityofScienceandTechnology,Wuhan,Hubei430081)Abstract:Basedontheanalysisresultsofone-dimensionalcompressibleidealflowinparallelclearanceofhigh-pressurecircularaerostaticbearing,thedistributionlawsofMachnumber,statictemperatureandstaticpressureofone-dimensionalmodelonthesymmetrylineofgasfilminparallelairfilmareaareobtainedbytheoreticaldeductionandprogrammingusingnumericalcalculationmethod,inwhichtheareavariation,wallfrictionandheatinputinparalleldiscclearanceareconsidered.Theresultsshowthatfortheone-dimensionalmodel,theMachnumberonthesymmetrylineofthegasfilmalwaysshowsadecreasingtrend,thestatictemperaturealwaysshowsanincreasingtrend,andthestaticpressureshowsarisingtrendfirstandthenaslowlydecreasingtrend.Inthewholeparallelfilmclearance,theheatinputwillleadtoareductionoftheMachnumberdeclinerate.Intheconditionofmodestheatflux,Machnumberisslightlyaffectedbyheatflux.However,itshowsc...
