Inconsistent IJK Orientation

vauntedmango · January 21, 2022, 13:43

Hello,

I am trying to generate a 3D mesh on Pointwise where the K direction is set to be the same direction as that of the positive z axis. However, after exporting the grid in PLOT3D format and analysing on Tecplot, I found that the orientation is only set for the outer boundary of the blocks, whereas the interior has the opposite orientation. In my case, there are only 3 k planes. When viewing from the -z direction, the outer boundary of the mesh block shows k=1 whereas the interior cells all have a k value of 3. This ultimately gives me negative volume errors when trying to run this on a solver. Has anyone else experienced this issue before? If so, how do I go about this?

Thanks

dgarlisch · January 24, 2022, 13:20

Select structured blocks
Menu Edit, Orient...

January 21, 2022, 13:43	Inconsistent IJK Orientation	#1
vauntedmango New Member Join Date: Mar 2021 Posts: 13 Rep Power: 5	Hello, I am trying to generate a 3D mesh on Pointwise where the K direction is set to be the same direction as that of the positive z axis. However, after exporting the grid in PLOT3D format and analysing on Tecplot, I found that the orientation is only set for the outer boundary of the blocks, whereas the interior has the opposite orientation. In my case, there are only 3 k planes. When viewing from the -z direction, the outer boundary of the mesh block shows k=1 whereas the interior cells all have a k value of 3. This ultimately gives me negative volume errors when trying to run this on a solver. Has anyone else experienced this issue before? If so, how do I go about this? Thanks Last edited by vauntedmango; January 21, 2022 at 13:44. Reason: Forgot to add what mesh generating software used

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January 24, 2022, 13:20		#2
dgarlisch Senior Member David Garlisch Join Date: Jan 2013 Location: Fidelity Pointwise, Cadence Design Systems (Fort Worth, Texas Office) Posts: 307 Rep Power: 14	Select structured blocks Menu *Edit, Orient...*