磁场仿真结果和实际测量值差别很打【附命令流和模型】

最近做 电磁场仿真，模型是一磁芯中间通导体棒，仿真结果和实际测量的差别很打，求高手帮忙找找原因，命令流如下：
/FACET,NORML
VLSCAL,all, , ,0.001,0.001,0.001, ,0,1
wpave,0,0,0
wpoff,0.017615,0.012475,0.00505
block,-0.01,0.01,-0.005,0.005,-0.15,0.15
block,-0.07,0.07,-0.045,0.045,-0.15,0.15
wpoff,0,-0.0098,0
/view,1,1,1,1
vovlap,ALL
numcmp,AREA
numcmp,VOLU
et,1,solid117
TB,BH,1,1,15
TBPT,,5.5,0.3
TBPT,,7,0.49
TBPT,,10,0.92
TBPT,,20,1.47
TBPT,,30,1.6
TBPT,,50,1.71
TBPT,,70,1.75
TBPT,,100,1.79
TBPT,,200,1.84
TBPT,,300,1.86
TBPT,,500,1.89
TBPT,,700,1.91
TBPT,,1000,1.925
TBPT,,2000,1.96
TBPT,,10000,2.1
mp,rsvx,1,4.8e-7
mp,murx,2,0.999991
mp,rsvx,2,1/5.8e7
mp,murx,3,1
VSEL,,,,2
VATT,2
VSEL,,,,3
VATT,3
allsel,all
smrt,3
mshape,1,3d
mshkey,0
vmesh,all
save
finish
/solu
asel,,,,23,24
asel,a,,,29,34
da,all,az
vsel,,,,2
bfv,all,js,,,1200/2e-4
allsel,all
/GST,1
magsolv
/post1
plnsol, b,sum, 2
/GRAPHICS,POWER
/type,1,1
/cplane,1
/cont,1,32,0, ,1
/view,1,,,1
/replot
ETABLE, ,JT,SUM
ETABLE, ,SENE
ETABLE, ,JHEAT
ETABLE, ,VOLU
SMULT,JLOSS,JHEA,VOLU,1,1
SSUM