Face handedness
Hi, does anyone know how to correct a "face-handedness" grid error? This jumps out at me when I do a grid check on my latest grid (took me hours to make it, darn!), and I cannot imagine having remesh the whole thing again! :P
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Re: Face handedness
Hi Chris,
try /grid/modify-zones/repair-face-handedness, s.t. it helps. If your case is 2D and axissymmetric, the error can occur due to cells lying below the x-axis. If possible, translating in the right direction helps. |
Re: Face handedness
I tried your advice, and though it corrected the face-handedness, it generated a non-positive volume :(
I'm doing a 3-D model, by the way. Maybe I'll try to remesh the thing, and see how things go...but if you have any more advice, please help! :) Thanks Volker. |
Re: Face handedness
Non-positive volumes after the handedness-repair process often indicate very bad cells. What is your highest skewness?
Sometimes the face-handedness problems occurs when you work with hybrid meshes in cases were the pyramids grow into the wrong direction or at sharp geometry angles with a too low grid resolution. Try to check where the bad cells with the negative volume are located and remesh this part if possible. Let me hear what the reason was. |
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