ansys热分析基础教程.pdf

ansys热分析基础教程.pdf

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NoBoundariesANSYS?

.1?

1?

ANSYS?

1?

ANSYS?

1?

.1?

2?

.2?

2?

3?

3?

4?

4?

4?

4?

5?

5?

5?

ANSYS?

5?

19?

212?

20?

20?

20?

ANSYS?

20?

20?

21?

23?

.23?

124?

2.25?

NoBoundariesANSYS?

ANSYS?

ANSYS/Multiphysics?

ANSYS/Mechanical?

ANSYS/Thermal?

ANSYS/FLOTRAN?

ANSYS/ED?

?

ANSYS/FLOTRAN?

ANSYS?

ANSYS?

ANSYS?

NoBoundariesANSYS?

ANSYS?

mft?

ss?

Kglbm?

oF?

Nlbf?

JBTU?

WBTU/sec?

W/m2BTU/sec-ft2?

W/m3BTU/sec-ft3?

W/m-?

BTU/sec-ft-oFKXX?

W/m2-?

BTU/sec-ft2-oFHF?

Kg/m3lbm/ft3DENS?

J/Kg-?

BTU/lbm-oFC?

J/m3BTU/ft3ENTH?

:

?

PEKEUWQ?

:

Q?

;W?

;?

U?

;?

KE?

PE?

0?

PEKE?

0?

W,?

UQ?

0?

UQ?

dtdUq?

q?

NoBoundariesANSYS?

1?

dxdTkq?

q?

W/m2?

k?

W/m-?

“-?

2?

）（BSTThq?

h?

TS?

TB?

3?

qAFTT?

1121424（）?

q?

5.6710-8W/m2.K4?

A1?

1?

F12?

1?

2?

T1?

1?

T2?

2?

q?

+q?

-q?

=0?

KTQ?

K?

T?

Q?

ANSYS?

K?

T?

Q?

NoBoundariesANSYS?

CTKTQ?

:

?

K?

C?

?

;?

T?

T?

;?

Q?

K（T）,C（T）?

h（T）?

CTTKTTQT?

ANSYS?

SOLID?

SHELL?

NoBoundariesANSYS?

40?

14?

LINK32?

LINK33?

LINK34?

LINK31?

PLANE55?

PLANE77?

PLANE35?

PLANE75?

PLANE78?

SOLID87?

SOLID70?

SOLID90?

SHELL57?

MASS71?

ANSYSElementReferenceGuide?

ANSYS?

ANSYS?

1?

jobname?

title?

unit?

PREP7?

NoBoundariesANSYS?

ANSYSModelingandMeshingGuide?

2?

Command:

ANTYPE,STATIC,NEWGUI:

MainmenuSolution-AnalysisType-NewAnalysisSteady-state?

Command:

ANTYPE,STATIC,RESTGUI:

MainmenuSolutionAnalysisType-Restart?

（?

）?

a?

CommandFamily:

DGUI?

MainMenuSolution-Loads-Apply-Thermal-Temperatureb?

（?

）?

ANSYS?

CommandFamily:

FGUI?

MainMenuSolution-Loads-Apply-Thermal-HeatFlowc?

LINK34?

CommandFamily:

SFGUI?

MainMenuSolution-Loads-Apply-Thermal-Convectiond?

NoBoundariesANSYS?

FLOTRANCFD?

ANSYS?

CommandFamily:

FGUI?

MainMenuSolution-Loads-Apply-Thermal-HeatFluxe?

CommandFamily:

BFGUI?

MainMenuSolution-Loads-Apply-Thermal-HeatGenerat?

a.?

Command:

TIMEGUI:

MainMenuSolution-LoadStepOpts-Time/FrequencTime-TimeStep/TimeandSubstps?

Command:

NSUBSTGUI:

MainMenuSolution-LoadStepOpts-Time/FrequencTimeandSubstpsCommand:

DELTIMGUI:

MainMenuSolution-LoadStepOpts-Time/FrequencTime-TimeStep?

（stepped）?

（ramped）?

Command:

KBCGUI:

MainMenuSolution-LoadStepOpts-Time/FrequencTime-TimeStep/TimeandSubstpsb.?

25?

Command:

NEQITGUI:

MainMenuSolution-LoadStepOpts-NolinearEquilibriumIter?

:

?

Command:

AUTOTSGUI:

MainMenuSolution-LoadStepOpts-Time/FrequencTime-TimeStep/TimeandSubstpsNoBoundariesANSYS?

Command:

CNVTOLGUI:

MainMenuSolution-LoadStepOpts-NolinearConvergenceCrit?

ANSYS?

Command:

NCNVGUI:

MainMenuSolution-LoadStepOpts-NolinearCriteriatoStop?

ANSYS?

Newton-Raphson?

Command:

LNSRCHGUI:

MainMenuSolution-LoadStepOpts-NolinearLineSearch?

Command:

PREDGUI:

MainMenuSolution-LoadStepOpts-NolinearPredictorc.?

*.out?

Command:

OUTPRGUI:

MainMenuSolution-LoadStepOpts-OutputCtrlsSoluPrintout?

*.rth?

Command:

OUTRESGUI:

MainMenuSolution-LoadStepOpts-OutputCtrlsDB/ResultsFile?

a.Newton-Raphson?

Command:

NROPTGUI:

MainMenuSolutionAnalysisOptionsb.?

Frontalsolver（?

JacobiConjugateGradient（JCG）solver?

JCGout-of-memorysolver?

IncompleteCholeskyConjugateGradient（ICCG）solver?

Pre-ConditionedConjugateGradientSolver（PCG）?

Iterative（automaticsolverselectionoption）Command:

EQSLVGUI:

MainMenuSolutionAnalysisOptions?

Iterative?

SURF19?

SURF22?

restartananalysisNoBoundariesANSYS?

c.?

273?

460?

Command:

TOFFSTGUI:

MainMenuSolutionAnalysisOptions?

:

?

ANSYS?

SAVE_DB?

Command:

SOLVEGUI:

MainMenuSolutionCurrentLS?

ANSYS?

*.rth?

POST1?

ANSYSBasicAnalysisProceduresGuide?

POST1?

Command:

SETGUI:

MainMenuGeneralPostproc-ReadResults-ByLoadStep?

Command:

PLNSOL,PLESOL,PLETAB?

GUI:

MainMenuGeneralPostprocPlotResultsNodalSolu,ElementSolu,ElemTable?

Command:

PLVECTGUI:

MainMenuGeneralPostprocPlotResultsPre-definedorUserdefined?

Command:

PRNSOL,PRESOL,PRRSOL?

GUI:

MainMenuGeneralPostprocListResultsNodalSolu,ElementSolu,ReactionSolu?

ANSYSBasicAnalysisProceduresGuide?

NoBoundariesANSYS?

1?

30feet?

2inch?

0.75inch?

1inch?

0.25inch?

200feet?

8.27BTU/hr.ft.oF?

0.028BTU/hr.ft.oF?

117.4BTU/hr.ft.oF?

70oF?

44.5oF?

2.5BTU/hr.ft2.oF?

80BTU/hr.ft2.oF?

1?

?

R15feet?

log?

/filename,Steady1/title,Steady-statethermalanalysisofsubmarine/units,BFTNoBoundariesANSYS?

Ro=15!

?

（ft）Rss=15-（0.75/12）!

?

ft）Rins=15-（1.75/12）!

?

（ft）Ral=15-（2/12）!

?

（ft）Tair=70!

?

Tsea=44.5!

?

Kss=8.27!

?

（BTU/hr.ft.oF）Kins=0.028!

?

（BTU/hr.ft.oF）Kal=117.4!

?

（BTU/hr.ft.oF）Hair=2.5!

?

（BTU/hr.ft2.oF）Hsea=80!

?

（BTU/hr.ft2.oF）/prep7et,1,plane55!

?

mp,kxx,1,Kss!

?

mp,kxx,2,Kins!

?

mp,kxx,3,Kal!

?

pcirc,Ro,Rss,-0.5,0.5!

?

pcirc,Rss,Rins,-0.5,0.5pcirc,Rins,Ral,-0.5,0.5aglue,allnumcmp,arealesize,1,16!

?

lesize,4,4lesize,14,5lesize,16,2eshape,2!

?

mat,1amesh,1mat,2amesh,2mat,3amesh,3/SOLUSFL,11,CONV,HAIR,TAIR!

?

NoBoundariesANSYS?

SFL,1,CONV,HSEA,TSEA!

?

SOLVE/POST1PLNSOL?

finish?

:

1.UtilityMenuFilechangejobename,?

Steady1?

2.UtilityMenuFilechangetitle,?

Steady-statethermalanalysisofsubmarine?

3.?

:

/units,BFT?

4.MainMenu:

Preprocessor?

5.MainMenu:

PreprocessorElementTypeAdd/Edit/Delete,?

PLANE55?

6.MainMenu:

PreprocessorMaterialProp-Constant-Isotropic,?

1,?

KXX?

8.27,?

APPLY,?

2,?

KXX?

0.028,?

APPLY,?

3,?

KXX?

117.4?

7.MainMenu:

Preprocessor-Modeling-Create-Areas-CircleByDimensions,?

RAD1?

15,?

RAD2?

15-（.75/12）,?

THERA1?

-0.5,?

THERA2?

0.5,?

AP