第40卷第2期2023年3月新疆大学学报(自然科学版)(中英文)JournalofXinjiangUniversity(NaturalScienceEditioninChineseandEnglish)Vol.40,No.2Mar.,2023非定常微极流体方程的速度校正投影方法∗阿妮柯孜·奥斯曼,冯新龙†,刘德民(新疆大学数学与系统科学学院,新疆乌鲁木齐830017)摘要:研究了二维和三维非定常微极流体方程的速度校正投影方法.采用一阶和二阶后向差分格式进行时间离散及协调有限元进行空间离散,给出了一阶和二阶时间半离散速度校正投影方法的无条件稳定性和一阶时间半离散格式的误差估计以及相应的全离散格式,证明了一阶全离散格式的无条件稳定性.最后,通过数值算例验证了该方法的有效性.关键词:微极流体方程;速度校正投影方法;协调有限元;稳定性分析;误差估计DOI:10.13568/j.cnki.651094.651316.2022.03.22.0002中图分类号:O241文献标识码:A文章编号:2096-7675(2023)02-0150-010引文格式:阿妮柯孜·奥斯曼,冯新龙,刘德民.非定常微极流体方程的速度校正投影方法[J].新疆大学学报(自然科学版)(中英文),2023,40(2):150-159.英文引文格式:ANIKEZIAosiman,FENGXinlong,LIUDemin.Velocity-correctionprojectionmethodforthetime-dependentmicropolarfluidequations[J].JournalofXinjiangUniversity(NaturalScienceEditioninChineseandEnglish),2023,40(2):150-159.Velocity-CorrectionProjectionMethodfortheTime-DependentMicropolarFluidEquationsANIKEZIAosiman,FENGXinlong,LIUDemin(SchoolofMathematicsandSystemSciences,XinjiangUniversity,UrumqiXinjiang830017,China)Abstract:Thevelocity-correctionprojectionmethodforthe2D/3Dtime-dependentmicropolarfluidequationsisconsidered.Inthismethod,thefirst-orderandsecond-orderbackwarddifferenceschemesareappliedfortimediscretizationandconformingfiniteelementisadoptedforspatialdiscretization.Theunconditionalstabilityofthefirst-orderandsecond-ordertimesemi-discretevelocity-correctionprojectionmethodsaregiven,andtheerrorestimationofthefirst-ordersemi-discreteschemeisanalyzed.Thestabilityanalysisofthefirst-orderfullydiscreteschemeisalsogiven.Finally,severalnumericalexamplesarepresentedtoshowtheefficiencyoftheproposedmethod.Keywords:micropolarfluidequations;velocity-correctionprojectionmethod;conforming...