分析出现了问题:
Coefficient matrix has a negative diagonal.
Probably indicates
• divergent solution.
~PARAIN,'a','x_t','G:\',SOLIDS,0,0
/NOPR
/GO
/FACET,NORML
/prep7
/title,SPS thermal analysis for fluid solid coupled
vplot
et,1,142
mp,kxx,1,0.613
mp,kxx,2,390
vglue,all
vsel,s,,,6,9,1
vatt,1,,1,0
vsel,s,,,10
vatt,2,,1,0
allsel,all
smart,6
MSHAPE,1,3D
MSHKEY,0
vmesh,all
fldata1, solu, temp, 1 ! Set solution option to thermal
fldata1, solu, flow, 1
fldata1, solu, turb, 1
fldata2, iter, exec, 200 ! Set FLOTRAN execution control
fldata2, iter, over, 50
!fldata5, outp, sumf, 50
!fldata13, vary, dens, 1 ! Set fluid properties
fldata7, prot, dens, constant
fldata8, Nomi, dens, 997
fldata7, prot, visc, constant
fldata8, Nomi, visc, 8.55e-4
fldata7, prot, cond, constant
fldata8, nomi, cond, 0.613
fldata7, prot, spht, constant
fldata8, nomi, spht,4179
!
fldata24, turb, modl,2
fldata24,turb, rati,2
acel, 0, 9.81, 0 ! Set flow environment gravity
!fldata18, meth, pres, 1
!fldata19, tdma, pres, 100
fldata18, meth, temp, 4 !设置温度求解方式
FLDATA,ALGR,SEGR,SIMPLEN
FLDATA,ALGR,HFLM,MATX
FLST,5,4,5,ORDE,4
FITEM,5,36
FITEM,5,42
FITEM,5,48
FITEM,5,54
CM,_Y,AREA
ASEL,R, , ,P51X
CM,_Y1,AREA
CMSEL,S,_Y
CMDELE,_Y
DA,_Y1,VZ,20,1
Da,all,temp,20
allsel,all
!DA,_Y1,temp,25,1
FLST,5,4,5,ORDE,4
FITEM,5,35
FITEM,5,41
FITEM,5,47
FITEM,5,53
CM,_Y,AREA
ASEL,R, , ,P51X
CM,_Y1,AREA
CMSEL,S,_Y
CMDELE,_Y
DA,_Y1,PRES,0,1
asel,s,loc,y,0.21324E-01,0.21324E-01
SFA,all,,HFLUX,1e5
/SOL
ALLSEL,ALL
solve
FINISH
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