求助：请教一个关于温度超出限制的问题
我把激光转化成热流密度加载到了物体表面，可是在运算的时候老是提示某个节点上的温度超出了限制温度，我的程序如下：!假设硅对激光的吸收率为0.9，激光照射直径为150μm
fini
/clear
/prep7
et,1,solid90
blc4,0,0,1.5e-3,0.04e-3,0.2e-3 !建立硅片模型长1.5mm，宽200μm，厚度40μm
mp,kxx,1,80 !定义硅片的导热系数
mp,dens,1,2230 !定义硅片的密度
lsel,s,,,2,4,2
lsel,a,,,5,7,2
lesize,all,,,100
lsel,s,,,9,12,3
lsel,a,,,10,11,1
lesize,all,,,20
lsel,s,,,3,6,3
lsel,a,,,1,8,7
lesize,all,,,4
type,1
vmesh,all
fini
/solu
!定义固定边界条件
!nsel,s,loc,x,0
!d,all,ux,0,,,uy,uz
!alls
!施加一个直径为150μm的激光均匀热流密度
nsel,s,loc,x,0.6e-3,0.75e-3
nsel,r,loc,y,0.04e-3
nsel,r,loc,z,0.025e-3,0.175e-3
sf,all,hflux, 88108 !施加均匀热流密度
alls
solv
fini
/post1
prnsol,TEMP
plnsol,TEMP
fini
请问应该怎样去解决啊？
谢谢 You don't have any boundary conditions for heat loss from the volume.
Physically there is only energy in but no energy out, so the temperature will be infinite. 2# iomega 谢谢
那上不上应该加上与外界的对流呢？
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