jlc187 发表于 2006-7-26 08:34

怎么处理辐射边界条件

请问各位高手

ANSYS能不能用来处理辐射边界条件的热计算?

谢谢

hawcking 发表于 2006-8-28 15:04

能,点对点,点对面,面对面都可以,辐射载核是热载核中的一种,我现在也不是很明白

yhs 发表于 2006-11-9 10:59

介绍两个例子:
1点对面
!Radiation modeling using surface effect element method for 2d model.
finish
/clear

/PREP7
ET,1,PLANE55
ET,2,SURF151

KEYOPT,2,4,1
KEYOPT,2,5,1
KEYOPT,2,9,1

R,1,.6,5.67e-8, , ,

RMORE, , , , , ,
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,KXX,1,,50
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,C,1,,500
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,1500
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EMIS,1,,0.85


k,1,-0.75,0.15,0
k,2,-0.25,0.25,0
k,3,0.3,0.1,0   
k,4,0.8,0.25,0
k,5,1.45,0.2,0
k,6,-0.75,-0.55,0   
k,7,1.45,-0.55,0
k,8,0.5,0.5,0



bsplin,1,2,3,4,5
a,1,5,7,6

lsel,s,,,1
lesi,all,,,25

lsel,s,,,2
lesi,all,,,8

TYPE,   1   
MAT,    1
REAL,   1   

MSHAPE,0,2D
MSHKEY,1

AMESH,all   

NKPT,0,       8

*get,nmax,node,,num,max

lsel,s,,,1
nsll,s,1
nsel,a,,,nmax

TYPE,   2   
MAT,       1
REAL,       1   
TSHAP,LINE
ESURF,nmax


ALLSEL,ALL

D,nmax,TEMP,500

lsel,s,,,3
nsll,s,1
d,all,temp,300
alls


FINISH
/SOLU   
ANTYPE,0
tunif,300
NROPT,FULL, ,   

OUTRES,ALL,ALL,
TIME,1
AUTOTS,1
NSUBST,10,1000,5,1
KBC,1   
   
SOLVE   
FINISH

2面对面
finish
/clear
/filname,surf_radi1,1

/PREP7
ET,1,SOLID70

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,KXX,1,,190   
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,2700
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,C,1,,900

rd1=1.0
rd2=0.9
rd3=0.3
rd4=0.25
z0=0
z1=0.2
dt=0.0001

CYLIND,rd1,rd2,z0,z1,0,180,

wpof,-0.30000

CYLIND,rd3,rd4,z0,z1,0,180,


VSYMM,Y,all, , , ,0,0

NUMMRG,KP, , , ,LOW
CSWPLA,11,1,1,1

lsel,s,loc,z,z0+dt,z1-dt
lesi,all,,,6,1

lsel,s,loc,x,rd3
lsel,r,loc,z,z0
lesi,all,,,20,1

lsel,s,loc,y,0
nsel,r,loc,z,z0
lesi,all,,,4

csys,1
lsel,s,loc,x,rd1
lsel,r,loc,z,z0
lesi,all,,,25

alls


MSHAPE,0,3D
MSHKEY,1

VMESH,all

asel,s,loc,x,rd2
sfa,all,,rdsf,0.85,1

csys,11
asel,s,loc,x,rd3
sfa,all,,rdsf,0.85,1
alls

nsel,s,loc,x,rd4
d,all,temp,1000

csys,1
nsel,s,loc,x,rd1
d,all,temp,300
alls

finish
/solu

tunif,300

STEF,0.567E-07
TOFFST,0
RADOPT,0.1,0.1E-03,0,1000,0.1,0.1   
SPCTEMP,1,300

HEMIOPT,10
V2DOPT,0,20,1,200   
VFOPT,OFF, , , ,BINA
alls
time,1
kbc,1
nsubst,10,100,5

save
solve

笨笨上路 发表于 2006-12-28 08:30

这些语言最好有专门的介绍一下,这样看起来比较头疼!:@L
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