shanhch
2010-04-22, 11:57
我要计算一个200*40*40的混凝土块温度场，边界温度随时间变化，为计算方便令比热和导热系数都为常数，计算结果是所有点温度都一样，不应该是这样的，不知道哪里出问题了，希望高手指点。命令流如下
finish
/clear
/filname,yingli
/title,yingli
!
*dim,T,table,6,1
T(1,1)=0,-5,-15,-25,-35 ！温度
T(1,0)=0,10,30,50,70 ！时间（分钟）
/prep7
et,1,solid70
mp,kxx,1,2.34
mp,c,1,1046
!
block,0,200,0,40,0,40
lsel,s,line,,2,4,2
lsel,a,line,,5,7,2
lesize,all,,,40
lsel,inve
lesize,all,,,8
vmesh,all
allsel,all
finish
/solu
antype,trans
nsel,s,loc,x,0
nsel,a,loc,x,200
nsel,a,loc,y,0
nsel,a,loc,y,40
nsel,a,loc,z,0
nsel,a,loc,z,40
d,all,temp,%T%
allsel,all
kbc,1
time,70
deltim,2
autots,on
solve
finish
/clear
/filname,yingli
/title,yingli
!
*dim,T,table,6,1
T(1,1)=0,-5,-15,-25,-35 ！温度
T(1,0)=0,10,30,50,70 ！时间（分钟）
/prep7
et,1,solid70
mp,kxx,1,2.34
mp,c,1,1046
!
block,0,200,0,40,0,40
lsel,s,line,,2,4,2
lsel,a,line,,5,7,2
lesize,all,,,40
lsel,inve
lesize,all,,,8
vmesh,all
allsel,all
finish
/solu
antype,trans
nsel,s,loc,x,0
nsel,a,loc,x,200
nsel,a,loc,y,0
nsel,a,loc,y,40
nsel,a,loc,z,0
nsel,a,loc,z,40
d,all,temp,%T%
allsel,all
kbc,1
time,70
deltim,2
autots,on
solve