Volume mesh in VWT fails!

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

Hello, 

I am conducting an external aerodynamic analysis of a semi truck using VWT. 
I am currently facing issues within the VWT. 

I have created a surface mesh using HyperMesh and have checked and fixed for any bad elements. 
The 2D mesh check for Tetramesh tells me that the 'Mesh is OK for Tetramesh' and after that, I am 
able to export the .nas file successfully onto VWT. 

However, when I run the analysis, the Volume mesher keeps failing for some reason. I have attached 
the error file and screenshots of the VWT run folder. 

Could you please help me point out what the issue currently could be? 

P.S: The files are from three different runs

<?xml version="1.0" encoding="UTF-8"?>Snip 2.PNG

<?xml version="1.0" encoding="UTF-8"?>Snip 1.PNG

<?xml version="1.0" encoding="UTF-8"?>Snip 3.PNG

Unable to find an attachment - read this blog

Tagged:

Answers

  • ydigit
    ydigit
    Altair Employee
    edited January 2018

    It seems that your input has problems at several locations. These are mentioned at the end of the file you uploaded.

     

    Try checking these locations in HyperMesh and repair the mesh.

    acuMeshSim: <SIMM_ERR_MSG>:Code: 1201 String: Problem meshing in face 21 at (-0.24972299999999997, -1.120143333333333, 0.58232286666666666)

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018
    Altair Forum User said:

    It seems that your input has problems at several locations. These are mentioned at the end of the file you uploaded.

     

    Try checking these locations in HyperMesh and repair the mesh.

    acuMeshSim: <SIMM_ERR_MSG>:Code: 1201 String: Problem meshing in face 21 at (-0.24972299999999997, -1.120143333333333, 0.58232286666666666)

     

    Thanks for the input ydigit!

     

    I was able to locate the problem areas in HyperMesh and run the analysis in VWT.

Categories