solver

问题：8-31-rke-steady-4-0.8运行至11000迭代步是报错“divergence detected in AMG solver: pressure correction”（补充：每个工况均遇到此类情况，原因尚未找到，暂时解决办法是将压力松弛因子从0.3改为0.1）；

This error is reported when Fluent is not able to converge the solution。The residuals are not converged。This error may come due to various reasons like improper mesh，improper boundary conditions，wrong material and improper solution settings。It is advisable to re check the entire case when one encounters this error。

解答：

以上老外对这个问题的回复，确实很多客户遇到过这样的问题，原因是多方面的，主要原因集中在网格质量差和边界条件的不合理。

对于你的问题，

fluent12-lecture03-solver-basics_M

Chapter 3 求解器设置

ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.

3-1

April 28, 2009 Inventory #002600

fluent12-lecture03-solver-basics_M

Solver Basics

FLUENT 12.0的GUI 的

Training Manual

FLUENT 图形用户界面将软件功能从上至下放置在项目管理目录下 在目录树下选择某一项后会打开与之相关的输入项面板– General – Models – Materials – Boundary Conditions – Solver Settings – Initialization and Calculation – PostprocessingANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.

3-2

April 28, 2009 Inventory #002600

fluent12-lectu

[Fluent]Solvererror原因及处理方法综整

Error:Floatingpointerror:invalidnumber原因:数据矩阵求解过程中出现的问题。方法:1、检查网格质量。9U'B1o;v9E0k,X2、检查边界条件和初始条件。2z*]*i.n3f,z3、对问题进行深入分析，对比模拟情况与真实情况之间的差距。0R.KLicenseforfluentexpires1-jan-0.!L+r7M$_%Se0b9LError:sopenoutputfile:unabletoopenfileforoutput\K4x:m9V7e*N7I!u8`ErrorObject:\-m\|'k+x$f8W;B:B4]+n(t5A$~O:A8Q%\\8x$P原因:license过期方法:更新license。

Fluent:

时机:在水流过毛细管的仿针的基础之上，加入了表面张力，再求解就总出现这个错误UpdatingsolutionattimelevelN...

Error:Toomany(5895)VOFsub-timesteps.Thevelocity)]9p4T'i8}^

fieldisprobablydiverging.Pleasecheckthe

Disjunctive logic programming under the stable model semantics [GL91] is a new

CMODELS–SAT-basedDisjunctiveAnswerSetSolver

YuliyaLierler

Erlangen-N¨urnbergUniversit¨at

yuliya.lierler@informatik.uni-erlangen.de

Introduction

Disjunctivelogicprogrammingunderthestablemodelsemantics[GL91]isanewmethodologycalledanswersetprogramming(ASP)forsolvingcombinatorialsearchproblems.Thisprogrammingmethodusesanswersetsolvers,suchasDLV[Lea05],GNT[Jea05],SMODELS[SS05],ASSAT[LZ02],CMODELS[Lie05a].SystemsDLVandGNTaremoregeneralastheyworkwit

问题：8-31-rke-steady-4-0.8运行至11000迭代步是报错“divergence detected in AMG solver: pressure correction”（补充：每个工况均遇到此类情况，原因尚未找到，暂时解决办法是将压力松弛因子从0.3改为0.1）；

This error is reported when Fluent is not able to converge the solution。The residuals are not converged。This error may come due to various reasons like improper mesh，improper boundary conditions，wrong material and improper solution settings。It is advisable to re check the entire case when one encounters this error。

解答：

以上老外对这个问题的回复，确实很多客户遇到过这样的问题，原因是多方面的，主要原因集中在网格质量差和边界条件的不合理。

对于你的问题，

RenewableEnergy75(2015)818e832

ContentslistsavailableatScienceDirect

RenewableEnergy

journalhomepage:/lo

cate/renene

Computationalanalysisofshroudedwindturbinecon gurationsusinga3-dimensionalRANSsolver

AniketC.Aranakea,*,kshminarayana,KarthikDuraisamyb

ab

DepartmentofAeronauticsandAstronautics,StanfordUniversity,Stanford,CA94035,USADepartmentofAerospaceEngineering,UniversityofMichigan,AnnArbor,MI,USA

articleinfo

Articlehistory:

Received7August2013Accepted18October2014

Availableonline15November2014Keywords:Windenergy

Shroudedwindturbines