Units in acusolve

Unknown
Unknown
edited October 24 in Community Q&A

Hi experts,

 

I just wanted to confirm if I set the sketching unit in MMKS, does it have any impact on things like flow velocity? I mean if I change the unit to MMKS, then does that mean that the flow velocity is in mm/s? Or, it only affects the sketching (in mm) not the flow velocity(in m)?

image

Thanks.

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Best Answer

  • ydigit
    ydigit
    Altair Employee
    edited May 20 Answer ✓

    These dimensions concern only the Sketching part of HyperMesh CFD interface. They have nothing to do with solver setup. 

    AcuSolve setup in HMCFD still expects unit to be SI/MKS (Meter, kg, seconds, Kelvin, rad/s). 

    (AcuSolve in the strictest sense is unitless, just that material defaults in HMCFD are MKS, thereby other input also has to be MKS). 

     

Answers

  • ydigit
    ydigit
    Altair Employee
    edited May 20 Answer ✓

    These dimensions concern only the Sketching part of HyperMesh CFD interface. They have nothing to do with solver setup. 

    AcuSolve setup in HMCFD still expects unit to be SI/MKS (Meter, kg, seconds, Kelvin, rad/s). 

    (AcuSolve in the strictest sense is unitless, just that material defaults in HMCFD are MKS, thereby other input also has to be MKS). 

     

  • shiucomp5
    shiucomp5 Altair Community Member
    edited October 24

    how to change units in simlab?

    can anyone help

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