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[CFD及热分析] 做一个范例出现这样的问题

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发表于 2008-11-16 21:46 | 显示全部楼层 |阅读模式

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在用Ansys作流体计算时出现以下错误报告:
Error attempting to back up unuseable results
file. Check READ/WRte permission .File.rfo
Error While building flotran data object.
不知道是什么原因造成的,应该如何改正,请各位大侠帮助
问题描述:分析一个钝头圆柱体,以马赫0。8分行10s后的温度及流场分布,来流总温为339。88.
命令如下:
finish
/clear
/filname,trans_test,1
/prep7
et,1,141
mp,ex,1,1
mp,kxx,2,190
mp,dens,2,2700
mp,c,2,900
x0=0
x1=15
x21=x1+0.2
x22=x21+0.3
x23=x22+1.5
x3=x23+20
thick=0.05
y0=0
y1=0.2
y2=y1+0.15
y3=10
dt=0.0001
rect,x0,x1,y0,y3
rect,x23,x3,y0,y2
rect,x23,x3,y2,y2+thick
rect,x23,x3,y2+thick,y3
rect,x22,x23,y2,y2+thick
rect,x22,x23,y2+thick,y3
aglue,all
k,,x1+thick
k,,x21,y1
k,,x21,y1+thick
bsplin,2,13,20
bsplin,17,10,9
a,2,20,17,9
a,2,20,24,3
lsel,s,length,,0.05
lesi,all,,,4,,,,,0
lsel,s,loc,x,x0+dt,x1-dt
lesi,all,,,50,10
lsel,s,loc,x,x1+dt,x22-dt
lesi,all,,,10,1
lsel,s,loc,x,x22+dt,x23-dt
lesi,all,,,15,-4
lsel,s,loc,x,x23+dt,x3-dt
lesi,all,,,60,10
lsel,s,loc,y,y2+dt,y3-dt
lesi,all,,,40,10
lsel,s,loc,x,x23
lsel,a,loc,x,x3
lsel,r,loc,y,y0+dt,y1-dt
lesi,all,,,8,-3
FLST,5,5,4,ORDE,5   
FITEM,5,1   
FITEM,5,4   
FITEM,5,7   
FITEM,5,11  
FITEM,5,15  
CM,_Y1,LINE
LSEL, , , ,P51X
*GET,_z1,LINE,,COUNT
*SET,_z2,0  
*DO,_z5,1,_z1   
*SET,_z2,LSNEXT(_z2)
*GET,_z3,LINE,_z2,ATTR,NDNX
*GET,_z4,LINE,_z2,ATTR,SPNX
*get,_z6,line,_z2,attr,kynd
*IF,_z3,GT,0,THEN   
*IF,_z4,NE,0,THEN   
LESIZE,_z2,,,_z3,1/_z4,,,,_z6   
*ENDIF  
*ENDIF  
*ENDDO  
CMSEL,S,_Y1
CMDELE,_Y1  
alls
MSHAPE,0,2D
MSHKEY,1
asel,s,loc,x,x1,x23
asel,r,loc,y,y0,y2+thick
mat,2
amesh,all
asel,inve
mat,1
amesh,all
nsel,s,loc,y,0
d,all,vy,0
nsel,s,loc,x,x23
nsel,r,loc,y,y0,y2
d,all,vx,0
d,all,vy,0
nsel,s,loc,x,x0
d,all,vx,0.8*20.05*(293**0.5)
d,all,vy,0
d,all,temp,1.16*293
d,all,pres,0
nsel,s,loc,y,y3
d,all,vy
nsel,s,loc,x,x3
d,all,pres,0
lsel,s,,,8,10,2
lsel,a,,,29
dl,all,,temp,300,1
alls
tunif,293
/solu
FLDATA1,SOLU,TRAN,1
FLDATA1,SOLU,FLOW,1
FLDATA1,SOLU,TEMP,1
FLDATA1,SOLU,TURB,1
FLDATA1,SOLU,COMP,1
FLDATA1,SOLU,VOF,0  
FLDATA1,SOLU,SFTS,0
FLDATA1,SOLU,IVSH,0
FLDATA1,SOLU,SWRL,0
FLDATA1,SOLU,SPEC,0
FLDATA1,SOLU,ALE,0  
FLDATA1,SOLU,RDSF,1
/COM,,Transient Analysis,1  
*SET,_z4,-999   
*SET,_z14,1
!*  
FLDATA4,TIME,STEP,0.01,
FLDATA4,TIME,ISTEP,0
FLDATA4,TIME,NUMB,1000,
FLDATA4,TIME,TEND,1.0e06
FLDATA4,TIME,GLOB,8,
FLDATA4,TIME,VX,0.01,   
FLDATA4,TIME,VY,0.01,   
FLDATA4,TIME,VZ,0.01,   
FLDATA4,TIME,PRES,1e-006,   
FLDATA4,TIME,TEMP,1e-006,   
FLDATA4,TIME,ENKE,0.01,
FLDATA4,TIME,ENDS,0.01,
FLDATA4A,STEP,OVER,10,  
FLDATA4,TIME,OVER,0
FLDATA4A,STEP,APPE,10,  
FLDATA4,TIME,APPE,1.0e6
FLDATA4A,STEP,SUMF,10,  
FLDATA4,TIME,SUMF,1.0e6
FLDATA4,TIME,BC,0   
FLDATA4,TIME,TEND,1000000,  
/COM,,Transient Analysis,1  
FLDATA12,PROP,DENS,4
FLDATA13,VARY,DENS,1
FLDATA12,PROP,VISC,4
FLDATA13,VARY,VISC,0
FLDATA12,PROP,COND,4
FLDATA13,VARY,COND,0
FLDATA12,PROP,SPHT,4
FLDATA13,VARY,SPHT,0
!*  
FLDATA7,PROT,DENS,AIR-SI
FLDATA8,NOMI,DENS,-1
FLDATA9,COF1,DENS,0
FLDATA10,COF2,DENS,0
FLDATA11,COF3,DENS,0
FLDATA7,PROT,VISC,AIR-SI
FLDATA8,NOMI,VISC,-1
FLDATA9,COF1,VISC,0
FLDATA10,COF2,VISC,0
FLDATA11,COF3,VISC,0
FLDATA12,PROP,IVIS  
FLDATA7,PROT,COND,AIR-SI
FLDATA8,NOMI,COND,-1
FLDATA9,COF1,COND,0
FLDATA10,COF2,COND,0
FLDATA11,COF3,COND,0
FLDATA7,PROT,SPHT,AIR-SI
FLDATA8,NOMI,SPHT,-1
FLDATA9,COF1,SPHT,0
FLDATA10,COF2,SPHT,0
FLDATA11,COF3,SPHT,0
FLDA,STAB,VISC,10      
FLDA,STAB,MOME,1.0      
FLDA,STAB,TURB,1      
FLDA,STAB,PRES,1.e-3   
FLDA,METH,PRES,3     
FLDA,SRCH,PRES,10     
FLDA,MAXI,PRES,1000     
flda,capp,pres,t
flda,capp,pmin,-9.5E+4
solve
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发表于 2008-11-17 11:09 | 显示全部楼层
你仔细检查一下你的命令流,一部分一部分调整,把问题的出错范围缩小到最小;不要一下子把命令流都放进去了,那样寻找问题很难的。
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