chtMultiRegionSimpleFoam

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 September 9, 2011, 17:06 chtMultiRegionSimpleFoam #1 New Member   javad Join Date: Aug 2010 Posts: 22 Rep Power: 8 hello I am confused my question is in the sample multiregionheterradiation in OpenFoam 2.0.0 what is the relation between dimentions in the blockMeshDict file and the regions in any directhion? I mean that the volume of regions is not equl to the volume of hex in blockMeshDict,i cannot understand why. is there any conversion factor? i can not understand the coordinates in file makeCellSets.setSet thanks for your attention

 September 10, 2011, 15:48 #2 Senior Member   Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,195 Blog Entries: 1 Rep Power: 16 the points in makeCellSets.setSet is some how strange but you can create ur mesh easily , you just need to know that: for creating a box with cellSets, you need two points which are the points on the main diagonal of box!

 September 17, 2011, 14:15 makecellset.setSet #3 New Member   javad Join Date: Aug 2010 Posts: 22 Rep Power: 8 hi I'm using chtMultiRegionFoam and i'm trying to understand the example in toturial. I don't know how to make regions and I don't know how to make the file makecellset.setSet please help me to make the file thanks

 September 17, 2011, 15:38 #4 Senior Member   Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,195 Blog Entries: 1 Rep Power: 16 its not hard make ur region by commands below: to make box : cellSet regionName new boxToCell (x1 y1 z1) (x2 y2 z2) which point1 and point2 are the point one main diagonal of box to make cylinder: cellSet regionName new cylinderToCell (x1 y1 z1) (x2 y2 z2) R point1 and point2 are the first and the end of cylinder axis and R is radius to add two regions together you can use: cellSet regionName1 add cellToCell regionName2

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