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  • Pressure and kinematic viscosity unit

    Posted by Sidharth on December 12, 2023 at 10:12 am

    Dear Sir,

    In pitzdaily folder, the unit of pressure is given as m2/s2. Is it wrong or does it have some other meaning?

    And in the counterFlowFlame2D folder, the unit of alphat (Kinematic Viscosity) is given as kg/m.s. Is this correct?

    I have attached the reference images for the same. I have directly taken it from the tutorials. Let me know your thoughts on it.

    Regards,

    Sidharth Kamble

    Barış Bicer replied 4 months ago 2 Members · 1 Reply
  • 1 Reply
  • Barış Bicer

    Moderator
    December 12, 2023 at 10:11 pm

    Hi Sidharth,

    No, it is not wrong. I explained it in the lecture 21 or 22.

    OpenFOAM uses the kinematic pressure for incompressible cases. The kinematic pressure is simply the pressure divided by the density.

    And who said that alphat is kinematic viscosity ha? it is turbulent thermal diffusivity and used in compressible solvers

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