【讨论】二维瞬态传热分析

lishuang_79

我研究的是一个尺寸为400*400*50平板，里面有孔放内热源加热管。为了简化，忽略了管长方向的热量损失，将其看作一个平面。边界条件既有对流又有辐射，初始温度为环境温度，参考温度与其相同。我先只考虑对流，每个加热管的生热率为5000W/m3，进行计算。对流传热系数随温度变化，我把它设成温度的参数，加热时间为300s，可是温度变化却不到1℃，不知是什麽原因。

hsg8888

是算温度场还是热变形
希望能够把命令流贴出来，

lishuang_79

是温度场分析

lishuang_79

/COM,ANSYS RELEASE  8.0    UP20030930       09:03:37    07/25/2004
*SET,HF1(2,1,1) , -1.86  
*SET,HF1(3,1,1) , -2.22  
*SET,HF1(4,1,1) , -2.4   
*SET,HF1(5,1,1) , -2.56  
*SET,HF1(6,1,1) , -2.78  
*SET,HF1(7,1,1) , -2.95  
*SET,HF2(1,1,1) , 0  
*SET,HF2(2,1,1) , -4.52  
*SET,HF2(3,1,1) , -5.65  
*SET,HF2(4,1,1) , -6.24  
*SET,HF2(5,1,1) , -6.73  
*SET,HF2(6,1,1) , -7.39  
*SET,HF2(7,1,1) , -7.89  
*SET,HF3(2,1,1) , -7.95  
*SET,HF3(3,1,1) , -9.48  
*SET,HF3(4,1,1) , -10.26
*SET,HF3(5,1,1) , -10.93
*SET,HF3(6,1,1) , -11.88
*SET,HF3(7,1,1) , -12.63
SAVE
LSEL,S,LOC,X,0,0.2   
/SOLU   
FLST,2,1,4,ORDE,1   
FITEM,2,5   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF1% , , %HF1%   
FLST,2,1,4,ORDE,1   
FITEM,2,3   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF2% , , %HF2%   
LSEL,S,LOC,Y,0,0.2   
FLST,2,2,4,ORDE,2   
FITEM,2,4   
FITEM,2,8   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF3% , , %HF3%   
SAVE
ALLSEL,ALL   
BFLLI, ALL   
!*   
ANTYPE,4
!*   
TRNOPT,FULL  
LUMPM,0  
!*   
DELTIM,0.1,0,0   
TIME,180
EQSLV,ITER,2
!*   
TREF,20,
ALLSEL,ALL   
TUNIF,20,   
SAVE
ALLSEL,ALL   
/STATUS,SOLU
SOLVE   
FINISH   
/POST1   
SET,LAST
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TG, , , ,VECT,ELEM,ON,0   
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
SET,FIRST   
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
FINISH   
/POST26  
FINISH   
/POST1   
INRES,BASIC  
FILE,'plane','rth','.'   
SET,LAST
FINISH   
/POST26  
FILE,'plane','rth','.'   
/UI,COLL,1   
NUMVAR,200   
SOLU,191,NCMIT   
STORE,MERGE  
FILLDATA,191,,,,1,1  
REALVAR,191,191  
XVAR,1   
PLVAR,1,
FORCE,TOTAL  
FORCE,TOTAL  
FINISH   
/POST1   
SET,LAST
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
/EFACE,1
!*   
PLNSOL,TEMP, ,0,
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
/EFACE,1
!*   
PLNSOL,TEMP, ,1,
/EFACE,2
!*   
PLNSOL,TEMP, ,0,
/EFACE,1
!*   
PLNSOL,TEMP, ,0,
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TF, , , ,VECT,ELEM,ON,0   
!*   
/VSCALE,1,1,0   
!   
!*   
PLVECT,TG, , , ,VECT,ELEM,ON,0   
/EFACE,1
!*   
PLNSOL,TEMP, ,0,
FINISH   
/POST26  
NUMVAR,200   
FILLDATA,191,,,,1,1  
REALVAR,191,191  
FINISH   
/POST1   
INRES,BASIC  
FILE,'plane','rth','.'   
SET,LAST
/UI,COLL,0   
FINISH   
/POST26  
RESET   
FINISH   
/POST1   
RESET   
FINISH   
/POST26  
FILE,'plane','rth','.'   
/UI,COLL,1   
NUMVAR,200   
SOLU,191,NCMIT   
STORE,MERGE  
NUMVAR,200   
FILLDATA,191,,,,1,1  
REALVAR,191,191  
/REPLOT,RES

lishuang_79

请大家帮我看一下。

lishuang_79

这是一个比较完整的例子
/COM,ANSYS RELEASE  8.0    UP20030930       12:32:50    07/25/2004
/input,menust,tmp,'',,,,,,,,,,,,,,,,1   
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE   
WPSTYLE,,,,,,,,0
/REPLOT,RESIZE   
/FILNAME,hot analysis,0  
/TITLE,transiant
/PREP7   
!*   
!*   
/NOPR   
/PMETH,OFF,0
KEYW,PR_SET,1   
KEYW,PR_STRUC,0  
KEYW,PR_THERM,1  
KEYW,PR_FLUID,0  
KEYW,PR_ELMAG,0  
KEYW,MAGNOD,0   
KEYW,MAGEDG,0   
KEYW,MAGHFE,0   
KEYW,MAGELC,0   
KEYW,PR_MULTI,0  
KEYW,PR_CFD,0   
/GO  
!*   
/COM,   
/COM,Preferences for GUI filtering have been set to display:
/COM,  Thermal   
!*   
!*   
ET,1,PLANE55
!*   
!*   
MPTEMP,,,,,,,,   
MPTEMP,1,20  
MPTEMP,2,100
MPTEMP,3,200
MPDATA,KXX,1,,54
MPDATA,KXX,1,,52
MPDATA,KXX,1,,48
MPTEMP,,,,,,,,   
MPTEMP,1,0   
MPDATA,C,1,,465  
MPTEMP,,,,,,,,   
MPTEMP,1,0   
MPDATA,DENS,1,,7833  
RECTNG,0,0.2,0,0.05,
CYL4,0,0,0.008   
FLST,3,1,5,ORDE,1   
FITEM,3,2   
AGEN, ,P51X, , ,0.05,0.025, , , ,1   
/REPLOT  
FLST,3,1,5,ORDE,1   
FITEM,3,2   
AGEN,2,P51X, , ,0.06, , , ,0
FLST,3,1,5,ORDE,1   
FITEM,3,3   
AGEN,2,P51X, , ,0.06, , , ,0
FLST,3,3,5,ORDE,2   
FITEM,3,2   
FITEM,3,-4   
ASBA,       1,P51X   
/REPLOT  
LSEL,S,LOC,X,0,0.2   
FINISH   
/SOL
FLST,2,12,4,ORDE,2   
FITEM,2,5   
FITEM,2,-16  
/GO  
!*   
BFL,P51X,HGEN,5e4   
ALLSEL,ALL   
BFLLI, ALL   
*DIM,HF1,TABLE,7,1,1,TEMP,HF1,   
!*   
*DIM,HF1,TABLE,7,1,1,TEMP, ,
!*   
*SET,HF1(1,0,1) , 20
*SET,HF1(2,0,1) , 40
*SET,HF1(2,1,1) , -1.86  
*SET,HF1(3,0,1) , 60
*SET,HF1(3,1,1) , -2.22  
*SET,HF1(4,0,1) , 80
*SET,HF1(4,1,1) , -2.4   
*SET,HF1(5,0,1) , 100   
*SET,HF1(5,1,1) , -2.56  
*SET,HF1(6,0,1) , 140   
*SET,HF1(6,1,1) , -2.78  
*SET,HF1(7,0,1) , 180   
*SET,HF1(7,1,1) , -2.95  
*DIM,HF2,TABLE,7,1,1,TEMP, ,
!*   
*SET,HF2(1,0,1) , 20
*SET,HF2(2,0,1) , 40
*SET,HF2(2,1,1) , -4.52  
*SET,HF2(3,0,1) , 60
*SET,HF2(3,1,1) , -5.65  
*SET,HF2(4,0,1) , 80
*SET,HF2(4,1,1) , -6.24  
*SET,HF2(5,0,1) , 100   
*SET,HF2(5,1,1) , -6.73  
*SET,HF2(6,0,1) , 140   
*SET,HF2(6,1,1) , -7.39  
*SET,HF2(7,0,1) , 180   
*SET,HF2(7,1,1) , -7.89  
*DIM,HF3,TABLE,7,1,1,TEMP, ,
!*   
*SET,HF3(1,0,1) , 20
*SET,HF3(2,0,1) , 40
*SET,HF3(2,1,1) , -7.95  
*SET,HF3(3,0,1) , 60
*SET,HF3(3,1,1) , -9.48  
*SET,HF3(4,0,1) , 80
*SET,HF3(4,1,1) , -10.26
*SET,HF3(5,0,1) , 100   
*SET,HF3(5,1,1) , -10.93
*SET,HF3(6,0,1) , 140   
*SET,HF3(6,1,1) , -11.88
*SET,HF3(7,0,1) , 180   
*SET,HF3(7,1,1) , -12.63
SAVE
FINISH   
/PREP7   
SMRT,6   
SMRT,4   
MSHAPE,0,2D  
MSHKEY,0
!*   
CM,_Y,AREA   
ASEL, , , ,       5  
CM,_Y1,AREA  
CHKMSH,'AREA'   
CMSEL,S,_Y   
!*   
AMESH,_Y1   
!*   
CMDELE,_Y   
CMDELE,_Y1   
CMDELE,_Y2   
!*   
FINISH   
/SOL
FLST,2,1,4,ORDE,1   
FITEM,2,1   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF1% , , %HF1%   
FLST,2,1,4,ORDE,1   
FITEM,2,3   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF2% , , %HF2%   
FLST,2,1,4,ORDE,1   
FITEM,2,4   
/GO  
!*   
!*   
!*   
SFL,P51X,CONV, %HF3% , , %HF3%   
TUNIF,20,   
TREF,20,
!*   
ANTYPE,4
!*   
TRNOPT,FULL  
LUMPM,0  
!*   
DELTIM,0,1,60   
EQSLV,ITER,2
TIME,300
SAVE
/STATUS,SOLU
SOLVE   
FINISH   
/POST1   
SET,LIST
SET,LAST
/EFACE,1
!*   
PLNSOL,TEMP, ,0,
SET,LIST
SET,LIST
FINISH   
! /EXIT,ALL