简单扩张管我怎么算出来成这样了。悲剧啊

binjieli

New Name 'm4l240' Model 1 File m4l240.sdb Return
Option  FEM Frequency Fluid Return
Import Mesh Format Nastran File xinjian\m4l240.bdf Return
Material Fluid
    Name 'air'
    Sound Real 3.4000e+002  Rho Real 1.2250e+000
    Elements All
    Return
Set Name  " in"
    Faces 34 To 35 61 99 194 216 237 344 393 569 584 798 886 1254 1315
    Return
Boundary Velocity  Real -1 Imag 0
    Faces Set 1
    Return
Set Name  " out"
    Faces 15 42 103 145 268 To 269 351 476 478 490 576 681 750 1124 1204
    Return
Boundary Admittance  Real 416.5 Imag 0
    Faces Set 2
    Return
Solve
    Frequency 20 To 4000 LinStep 10
    Return
Combine
Read Node 939 Pressure Return
Read Node 939 Pressure Return
Conjugate
Multiply
Root
Read Node 936 Pressure Return
Read Node 936 Pressure Return
Conjugate
Multiply
Root
Divide
Real
Log10
Constant Real 20 Imag 0
Multiply
Write Table 2 Name 'atten' Return
Return
Curve

    Table 2
    Format  1
    NoBackground
    Marker 0
    Return

    Table 2
    Format  1 NoBackground
    Marker 0
    Type 1 dBLin Third RMSC
    Return

    Table 2
    Format  1 NoBackground
    Marker 0
    Type 1 dBLin Narrow RMSC
    Return
    Return
Save Return

Exit Save Journal journalm4l240 Save Models

binjieli

我不知道该怎么弄。是网格出问题了？？？？。我检查不出来啊，。这里传不了网格，谁能帮我看看啊。

lotuses

还是传下网格看看吧，你改了后缀可以上传

hhp886

Boundary Admittance  Real 416.5 Imag 0
    Faces Set 2
    Return
j出口边界错误
Admittance 改成 Impedance