Learning Forum

[fadhliafif]

I am meshing a fluid domain of journal bearing using FLUENT. In the first and second pictures, I succeeded and got a good meshing result. but when I combine figure 1 and 2 (there is an inlet and slip region in 1 geometry) like in figure 3, the meshing becomes error with comments ("MultiZone found free block in swept body" and "A mesh could not be generated using the current meshing options and settings "). I've tried to decrease the element size, but the result is still error. I also have changed the method to hex dominant and it worked but the skewness is 1 (really high). 

does anyone have any suggestions for this problem? I think I need to have a Hexa element.

p.s. : I design this geometry in Solidworks and just import it in design modeler. I use "wrap" feature to draw the inlet and slip region. and all of  geometries have the same meshing condition as attached in figure 4

[Rob]

First tip: never use the Hex-dominant meshing method. It's designed to give a good surface mesh for Mechanical but then fills the volume with rubbish (for CFD). 

If you read the sweep limitations you'll see that you need single face to single face geometry. Multizone can work around this but may not like the overlapping profiles. 

[fadhliafif]

I still get an error after I moved the slip area by 10 degrees as seen in the picture below sir. or does the multizone method not work when there are more than two faces in a face geometry?