【附apdl】flotran辐射问题：如何设置固液界面的面对面辐射？
apdl如下/filname,flotranFlow
/PREP7
tup=1273
tbot=1873
lx=100
ndx=50
ly1=10
ly2=40
ly3=10
ndy1=10
ndy2=40
ndy3=10
yoffset=0
et,1,141
!keyopt,1,1,2 !设置为两组分
rectng,,lx,yoffset,yoffset+ly1
rectng,,lx,yoffset+ly1,yoffset+ly2+ly1
rectng,,lx,yoffset+ly2+ly1,yoffset+ly3+ly2+ly1
numcmp,all
alls
lsel,s,,,1,11,2
lesize,all,,,ndx
alls
lsel,s,,,2,10,8
lsel,a,,,4,12,8
lesize,all,,,ndy1
alls
lsel,s,,,6,8,2
lesize,all,,,ndy2
allsel,all
mat,1
amesh,2
mat,2
amesh,3
amesh,1
mp,dens,2,2.5
mp,kxx,2,100
mp,c,2,13
!定义入口条件
lsel,s,,,8
nsll,s,1
d,all,pres,10
d,all,temp,500
allsel
!定义出口条件
lsel,s,,,6
nsll,s,1
d,all,pres,0
allsel
!定义辐射表面
lsel,s,,,5
lsel,a,,,7
nsll,s,1
sf,all,rdsf,0.9,-1
allsel
!定义温度条件
lsel,s,,,10,12,1
dl,all,,temp,tup,1
allsel
lsel,s,,,1,2,1
lsel,a,,,4
dl,all,,temp,tbot,1
!++++++++++++++++++++++++++++++++++++++++++++++++
!++++++++++++++++++++++++++++++++++++++++++++++++
allsel
lsel,s,,,9
lsel,a,,,7
nsll,s,1
nummrg,node
!+++++++
allsel
lsel,s,,,3
lsel,a,,,5
nsll,s,1
nummrg,node
!++++++++++++++++++++++++++++++++++++++++++++++++
!++++++++++++++++++++++++++++++++++++++++++++++++
allsel
lsel,s,,,5
nsll,s
esln,r
cm,glass,elem
allsel
lsel,s,,,7
nsll,s
esln,r
cm,fwall,elem
alls
fini
/aux12
stef,5.67e-8
toffst,273.15
radopt,0.1,0.1,0,1000,0.1,0.1
spctemp,1,20
alls
VFCALC
VFQUERY,fwall,glass
*GET,VFAVG1,RAD,,VFAVG
VFQUERY,fwall,fwall
*GET,VFAVG2,RAD,,VFAVG
VFQUERY,glass,glass
*GET,VFAVG3,RAD,,VFAVG
finish
上面是我做的热辐射apdl，不过运行有问题：我在流体边界5和7上加上了热辐射：
!定义辐射表面
lsel,s,,,5
lsel,a,,,7
nsll,s,1
sf,all,rdsf,0.9,-1
allsel
然后把流体边界和固体边界节点合并就出问题了
allsel
lsel,s,,,9
lsel,a,,,7
nsll,s,1
nummrg,node
!+++++++
allsel
lsel,s,,,3
lsel,a,,,5
nsll,s,1
nummrg,node
提前几何模型是用lglue合并辐射加不上。
这个问题如何解决，不用节点合并？ 我在帮助文档上看到能再固液界面上热辐射，
Since radiation can pass through a fluid region and impact on a solid, you can apply the surface-to-surface radiation load on a fluid/solid interface, as well as on external model boundaries. In this case, you should apply the RDSF load to either the fluid or solid element faces, or the solid entity defining the interface.
但如何在固液界面上加载热辐射没有找到。
谢谢各位。
怎么都没人看呀。
页:
[1]