non-uniform mesh extrusion

yxl1453 · August 16, 2021, 10:59

Hi, I am trying to generating a solid baffle in the fluid domain and calculate properties on it. To achieve this, I am using "extrudetoregionmeshdict".

However, I found the generated mesh is not "flat" nor uniform. I am wondering if my settings are wrong. I hope to receive help on this. thanks!

Below are the settings of "extrudetoregionmeshdict".
%%%%%
oneD true;
sampleMode nearestPatchFace;
extrudeModel linearNormal;
oneDPolyPatchType empty; //wedge
nLayers 8;
expansionRatio 1;
adaptMesh true; // directMapped for both
linearNormalCoeffs
{
thickness 0.1;
}
%%%%%

yxl1453 · August 20, 2021, 23:00

Hi, all, I have attached some plots and contours to show what happened.
As you can see the contour contains lots of point noise. The 2d line plot shows these local data oscillations. What might be the cause of this??

August 16, 2021, 10:59	non-uniform mesh extrusion	#1
yxl1453 New Member yan Join Date: May 2021 Posts: 7 Rep Power: 5	Hi, I am trying to generating a solid baffle in the fluid domain and calculate properties on it. To achieve this, I am using "extrudetoregionmeshdict". However, I found the generated mesh is not "flat" nor uniform. I am wondering if my settings are wrong. I hope to receive help on this. thanks! Below are the settings of "extrudetoregionmeshdict". %%%%% oneD true; sampleMode nearestPatchFace; extrudeModel linearNormal; oneDPolyPatchType empty; //wedge nLayers 8; expansionRatio 1; adaptMesh true; // directMapped for both linearNormalCoeffs { thickness 0.1; } %%%%%

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August 20, 2021, 23:00		#2
yxl1453 New Member yan Join Date: May 2021 Posts: 7 Rep Power: 5	Hi, all, I have attached some plots and contours to show what happened. As you can see the contour contains lots of point noise. The 2d line plot shows these local data oscillations. What might be the cause of this??