cfd大神帮帮忙啊/(ㄒoㄒ)/~~。。。自己设计的动车外形，正在画网格，打算分析一下，结果就是生成不了边界层网格，救命啊/(ㄒoㄒ)/~~..下面是报错：

整体缩小了一千倍，宽3mm，高4mm，边界层网格0.05mm

求助！！！大神们帮帮忙。。。

报错

No inflation source shells. Can't extrude prisms!

no valid inflation sources.

prism finished

Application is finished.

Error: prism didn't create prism.uns

生成的日志是这么写的：

ANSYS ICEM CFD Prism 16.0 compiled on 12/3/2014 at 3:01 p.m.

running on Windows (64 bit version)

(c) Copyright 1993 - 2014 Ansys Inc.

process PC-20160316IUCY 8884

reading surface model...

reading mesh file...

sizeof mesh_element 24

sizeof element 40

sizeof base_prism 144

sizeof of one prism 152 bytes

sizeof of one tet 176 bytes

max_prism_angle reset to 174.261 because the min_prism_quality is 0.01

WARNING: prism height 0.032 set on surface F_107 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_322 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_526 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_636 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_707 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_786 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_867 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_946 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_1020 overrides

global height 0.002 and part CAR height 0.032

WARNING: prism height 0.032 set on surface F_1143 overrides

global height 0.002 and part CAR height 0.032

……

……（省略掉了）

……

……

……

……

……

……

done smoothing

marking shells

No inflation source shells. Can't extrude prisms!

no valid inflation sources.

prism finished