mesh guidance

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

Which type of mesh method is better to do a CFD analysis.Shall we generate a tetra mesh for CFD problems, If not which type of mesh is better to use?

Tagged:

Answers

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited March 2018

    Hi,

    meshing would depend on type of analysis you have , geometry etc. But is is generally recommended to have hex mesh for simulation. also if you are working with AcuSolve which works on FEM technique and if on ANSYS fluent it works on FVM technique. For FVM , hex is recomended

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2018

    I am working on Acusolve.Shall I use CFD tetra mesh for Acusolve for simple velocity inlet and pressure outlet problem?

     

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited March 2018

    Hi,

    Yes you can use it for simulation . try to compare the same with calculations. If within limits we can consider otherwise same simulation with hex mesh can be tried for studying results dependency on mesh

  • ydigit
    ydigit
    Altair Employee
    edited March 2018

    AcuSolve is a FE based code and is optimized to run with Tetra mesh (actually a big advantage for optimization, as it can work with highly skewed elements). 

    Some special cases (e.g. certain mesh motion like piston in cylinder) are better off with penta6 or hex8 elements.

     

    In general use tetra4 (avoid hybrid or mixed meshes, as the can lead to some post-processing complications.). AcuConsole will by default generate Tetra4 elements.

Categories