question about importing a SAT file

arch mona · November 9, 2012, 21:31

hi every body ,
I am architect, new in cfd work and I want to simulate natural ventilation in a building but I have a problem in converting dwg (3d) & revite files to ansys fluent , I exported the file into sat format and Imported it into ansys fluent but the program read walls as mesh so how can I convert the file correctly ?

Thank u all

Far · November 10, 2012, 07:03

where did u make the mesh?

arch mona · November 10, 2012, 19:22

thank you for reply

I am asking about how to make the mesh as I want to study natural ventilation throw a building .

Far · November 10, 2012, 19:26

Use ansys meshing or ICEM CFD to make the mesh

arch mona · November 10, 2012, 19:28

I exported the file into sat format only

and I dont know wat is the next step ?

arch mona · November 10, 2012, 19:48

so the mesh must be drawn , wat about walls the program traet with them as mesh and wat about furniture I should remove it from mesh ?
sorry for questions but I need to understand

and thank you

jasdeep2006singh · November 12, 2012, 09:27

You need to make control volume, would be about 15 times the dimension horizontally and 5 times up and down. then while meshing, or if you can do in 3d modelling software itself, subtract (boolean operation) the building from the control volume. You will end up with a big box with building shaped hole inside. then mesh that box, define inlet, outlet and walls.
Hope this helps !

arch mona · November 12, 2012, 13:01

I will try that and thank you so much

jasdeep2006singh · November 13, 2012, 02:10

Also, since in your case it is a building, there will be no dimension below (obviously), the building will be on one wall. i keep space everywhere in wing study and stuff like that...

November 9, 2012, 21:31	question about importing a SAT file	#1
arch mona New Member mona rezq Join Date: Nov 2012 Posts: 5 Rep Power: 15	hi every body , I am architect, new in cfd work and I want to simulate natural ventilation in a building but I have a problem in converting dwg (3d) & revite files to ansys fluent , I exported the file into sat format and Imported it into ansys fluent but the program read walls as mesh so how can I convert the file correctly ? Thank u all

November 12, 2012, 13:01	many thanks	#8
arch mona New Member mona rezq Join Date: Nov 2012 Posts: 5 Rep Power: 15	I will try that and thank you so much

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November 10, 2012, 07:03		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,565 Blog Entries: 6 Rep Power: 55	where did u make the mesh?

November 10, 2012, 19:22		#3
arch mona New Member mona rezq Join Date: Nov 2012 Posts: 5 Rep Power: 15	thank you for reply I am asking about how to make the mesh as I want to study natural ventilation throw a building .

November 10, 2012, 19:26		#4
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,565 Blog Entries: 6 Rep Power: 55	Use ansys meshing or ICEM CFD to make the mesh

November 10, 2012, 19:28		#5
arch mona New Member mona rezq Join Date: Nov 2012 Posts: 5 Rep Power: 15	I exported the file into sat format only and I dont know wat is the next step ?

November 10, 2012, 19:48		#6
arch mona New Member mona rezq Join Date: Nov 2012 Posts: 5 Rep Power: 15	so the mesh must be drawn , wat about walls the program traet with them as mesh and wat about furniture I should remove it from mesh ? sorry for questions but I need to understand and thank you

November 12, 2012, 09:27		#7
jasdeep2006singh New Member Jasdeep Join Date: Oct 2012 Posts: 13 Rep Power: 15	You need to make control volume, would be about 15 times the dimension horizontally and 5 times up and down. then while meshing, or if you can do in 3d modelling software itself, subtract (boolean operation) the building from the control volume. You will end up with a big box with building shaped hole inside. then mesh that box, define inlet, outlet and walls. Hope this helps !

November 13, 2012, 02:10		#9
jasdeep2006singh New Member Jasdeep Join Date: Oct 2012 Posts: 13 Rep Power: 15	Also, since in your case it is a building, there will be no dimension below (obviously), the building will be on one wall. i keep space everywhere in wing study and stuff like that...