阳光精品论坛 >> 『 CFD 专栏 』 >> CFD - Divergence of the linear iterations错误的解

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even2004      信息：  来自：未填  发贴：1239 贴  积分：244 点 货币：5814 阳光币 注册时间：2008/12/31  资料 好友 消息 引用回复 选择字号91011121415161820253050 CFD - Divergence of the linear iterations错误的解 CFD - Divergence of the linear iterations错误的解决办法 hi! I had the same problem. If you take a look at the examples 'Integrated square-shaped inductor' (model library -> mulitphysic ->electromagnetics ) and 'power conductor' (model library -> Ac/Dc module -> electrical components) you can see, that in theses examples the boundaries on which the current /potential is applied is in the same level as the boundarie, that sourrounds the whole geometrie. I tried it with my probelm, and now it works perfectly! do not ask how long it took me to find this solution ^^ best wishes! michael --- In COMSOL_Users@yahoogroups.com, "sfwei01" wrote: > > I also met such similar problems when dealing with 3D electromagnetic model. So far, I still haven't found a better solution. > > --- In COMSOL_Users@yahoogroups.com, "ralfhinas" wrote: > > > > Hi everybody! > > > > I'm quite familiar with CFD and COMSOL. And get the message shown below > > VERY OFTEN > > > > Error: > > Failed to find a solution: > > Divergence of the linear iterations. > > Returned solution has not converged. > > > > You can sometimes avoid it by setting the right parameters, but when > > using a similar model, everything changes and you must restart finding > > the appropriate parameters which makes comparing models really > > difficult. > > > > I've read almost the whole literature and postings but still don't have > > a > > how-to rule applicable and reliable to all (and not only some > > simplified) 3D!-geometries. > > > > Settings are usually: P-in, P-out bla bla, NS-incomp bla bla, flow rate > > bla bla bla( > > > > Does anyone has THE hint for me how to proceed? > > > > The comsol support gave me the only advice to set a higher value for the > > Newton iteration number, but that can't be the problem anymore! > > > > Would be lad if anyone has the rule applicable to a wide range of models! > > Thanks for your assistance!!!! > > > > Antonius in Berlin 编辑 |  发表于 2009/07/01/09:19  |  1 层  进入评分

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阳光精品论坛 >> 『 CFD 专栏 』 >> CFD - Divergence of the linear iterations错误的解

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