A DECOUPLING METHOD WITH DIFFERENT SUBDOMAIN TIME STEPS FOR THE NON-STATIONARY NAVIER-STOKES/DARCY MODEL

• 来源期刊: 计算数学（英文版）
• 关键词: Decoupling method Navier-Stokes/Darcy model Asynchronous time steps
• 年，卷（期）: 2017,（3）
• 页码范围: 319-345
• 页数: 27页
• 语种: 英文
• DOI: 10.4208/jcm.1606-m2015-0436

摘要

A decoupling method with different subdomain time steps for the non-stationary NavierStokes/Darcy model is formulated and analyzed.The method has asynchronous time steps,which adopt small time steps in the fluid region and large time steps in the porous region.It saves relatively large amount of CPU time.Stability and convergence of the method are proved.The numerical results are presented to illustrate the features of the proposed method.