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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 


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Onkar last won the day on May 26 2017

Onkar had the most liked content!

About Onkar

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  1. Hello, While exporting from hypermesh file (.hm), make sure that you are exporting only solids and there is no surface in that. You are getting error that it cannot detect any regions!

    Hi, Have you tried all the options mentioned above?? Pl send the model on edu-support@india.altair.com, I'll check whats wrong with the model.

    Also check whether you have selected User Profile as AcuSolve or not...!

    Hello, Pl have a look into the conversation. It'll help you.
  5. importing nastran file to AcuConsole

    Try to manage the surfaces properly. Hope you are using 14.0 version onward and export in Nastran(fluent) standard format, surely this will help.
  6. About command 'PURGE'

    Hello, It is not necessary to switch the display off while working on purge command. Will you please redirect us to the video where you've seen that...!
  7. Material Models

    Hello, PFA video as an answer. ABC is just given as a illustration. As soon as you tap on the new material, you can edit the properties. material_model.mp4
  8. Material Models

    Hello, Air, Aluminium and Water are available as a by default option.
  9. Relaxation factor

    Nice Question...! For simple problems, you can keep the value of relaxation factor at its default one. As relaxation factor works on suppressing the solution (from previous iteration), surely it is going to take a lot of time. Taking the project span into consideration, you have to use it when it is really needed.
  10. Relaxation factor

    Generally, value between 0.2 - 0.4 provides good balance between achieving small progression of solution and extra compute time needed to achieve the convergence.
  11. Relaxation factor

    Relaxation factor is primarily a number which is used to converge the solution.
  12. Mesh Size

    Absolutely...! The mesh on the surface "one" is prescribed by relative mesh size. Relative mesh size of 0.125 is used in here. Assuming the largest length in the model to be one meter, this is multiplied by 0.125 (the no. mentioned earlier) to generate a surface mesh where the largest element is 0.125 (1*0.125 = 0.125). The resulting mesh may look like this-
  13. Mesh Size

    Interesting question...! When you’re fully aware of the size of model, just go for absolute. Absolute mesh size has a unit length which can be modified also. But in actual practice, you may have to do couple of iterations for meshing to the benchmark level (set by organization). In relative meshing which is found out by a factor (a number ranging from 0 to 1) multiplied with the largest edge length of the bounding box for each geometric face in the surface group, different mesh size maybe used for faces of the model.
  14. curvature refinement

    If you use curvature-based refinement on surfaces that have sharp curves, you must specify a reasonable minimum curvature size either globally. Otherwise, extensive amounts of mesh refinement will take place in that area. In general, it is the parameter which defines mesh refinement in sharply arched areas.
  15. curvature refinement

    Hi, These are the parameters used to resolve curvatures in the geometry. In the data tree manager, when you turn this option ON, you'll see two options which are mentioned below. A] Curvature Angle- Its a ratio of curvature height to chord. B] Curvature mesh size factor- Its a ratio of min. mesh size to mesh size.