hello...i am having a problem in volume meshing.everytime i join 2 volume into one, then i have an error when i am meshing volume..it said that i should check the skewness of the face meshes and mesh are too big for small gap...pls advise.

* use different mesh sizes * may be your geometry is not connected * use a different way to construct geometry + can you explain a little bit more about your geometry so that a right suggestion can be made

Try to connect faces, edges, vertices first. You can use virtual operation. I guess you may have disconnected geometry which create very small gap.

How did you create your geometry?

Try to change mesh specification while meshing or if very small surfaces result from joining opreration, try to merge them.

By which operation u just join them? split or combine? check how many volume are there,, delete volumes if that are uses anyhow.

Alamgir

hello friends..i still have a problem on volume meshing.i draw a small aircraft model and the model will put in the wind tunnel.so i draw the half model of the aircraft, and then create a brick which will be assume as a wind tunnel.the dimension of wind tunnle is (1*1*2.5)M.after creating this two volume, i subtract it in to 1 volume.the problem appeared when i mesh the volume,it said that check the skewness and maybe the face mesh is too big for a small gap..then i shift the position on one part of the aircraft, then, the volume mesh is success..the problem comes again when i try to export to fluent.the error is sound like this: A DEFAULT (UNSPECIFIED) BOUNDARY WAS CREATED ERROR:AN INCORRECT MESH HAS BEEN STORED.CHECK MESH QUALITY BEFORE EXPORT. VOLUME 3 HAS INCORRECT MESH AT FACE FACE63... pls advise