Fluent 网格导入出现问题！

yunkai

Preparing mesh for display...
Done.
Writing Settings file...
        writing rp variables ... Done.
        writing domain variables ... Done.
        writing zones map name-id ... Done
Reading "H:\ansys\sample1\fluent.msh"...
       Clearing partially read grid.
    4949 nodes.
Warning: Invalid cell type 2. Skipping.
    9452 2D interior faces, zone  7.
      48 2D velocity-inlet faces, zone  2.
      48 2D outflow faces, zone  3.
     100 2D wall faces, zone  4.
     100 2D wall faces, zone  1.

Building...
     mesh
Removing 9452 unreferenced faces, zone 7.
Removing 48 unreferenced faces, zone 2.
Removing 48 unreferenced faces, zone 3.
Removing 100 unreferenced faces, zone 4.
Removing 100 unreferenced faces, zone 1.

Warning: Number of nodes read (4949) does not match number referenced (0).
Resetting counter to match the number referenced.

Warning: non-positive volumes exist.

     materials,
     interface,
     domains,
     zones,
        Skipping zone ground (not referenced by grid).
        Skipping zone top (not referenced by grid).
        Skipping zone outlet (not referenced by grid).
        Skipping zone inlet (not referenced by grid).
        Skipping zone int_geom (not referenced by grid).
        Skipping zone int_geom (not referenced by grid).
     shell conduction zones,
Done.

Preparing mesh for display...
Done.
Reading Settings file ...

紫金黄朝

non-positive volumes exist说明体积有负的啦，需要重新画网格了

yunkai

但是这是一个二维网格阿。怎么会出现体积负呢？该怎么解决呢？我已经重新画了Nbian了

azhuzhuaba

还是先找个简单算例练练手把

yunkai

我现在找到的问题的来源，就是在生成网格的时候，有很多的single edges， 这些都无法消除。即时使用不同的网格方法，都存在。我已经使用了最简单的例子，但是依然存在。

这是问题提示：can't remove tiny elements from all-quadrilateral mesh without node adjustment
1096 bars created on 1 loop
meshing loop 1 "DOMAIN.srf.02"
mapping 48 x 500
24000 new quadrangles
Surface Meshing completed

说明生成网格的时候进行了两个循环。边界生成了single edge。然后再生成内网格。请问怎么解决。我以前没有碰到过这个问题，最近算二维的时候才突然出现！

yunkai

另外通过调整node的数量能够减少single edge的数量，但是无法消除。

yunkai

这是生成的网格

浪子轻狂

网格画的不行，需要重画。话说，你的模型呢？传上来看看