Exhaust fan with a cylindrical flow in simpleFoam

Cfdjunior · December 21, 2019, 02:36

hello, I am new to OpenFoam and CFd , i have been working on a simple model of an exhaust fan with a steady flow , i have meshed the model , but not sure how to go about simulating it ,
any help would be very much appreciated .

Tobi · December 22, 2019, 12:36

Dear CFDJunior,

for CFD simulations you always have to do the following

Geometry preparation
Geometry meshing
Defining boundary conditions
Running and solving your equations
Postprocessing

Please read the User-Guide of OpenFOAM to get more familiar with these topics.

Cfdjunior · December 22, 2019, 12:49

Hi,
Thank you ,
I have done the first three processes, the meshing is done , the constant file has been prepared with boundary conditions, now I need to use simpleFoam as a solver to solve the equations and need to setup the system and 0 files,
I am not sure how to go about the next few steps even after reading the user guide

Cfdjunior · December 25, 2019, 07:18

I am kind of stuck at making fvOptions for the system file

Cfdjunior · January 2, 2020, 10:59

OK , now i have made some progress on the exhaust fan , but now i am kind of stuck in specifying the geometry or the coordinates needed for snappyhexmesh dictionary .
I took the system file from the rotatingfan in the room tutorial .
Is there any way to find the coordinates needed for this ?

December 21, 2019, 02:36	Exhaust fan with a cylindrical flow in simpleFoam	#1
Cfdjunior New Member Join Date: Dec 2019 Posts: 17 Rep Power: 6	hello, I am new to OpenFoam and CFd , i have been working on a simple model of an exhaust fan with a steady flow , i have meshed the model , but not sure how to go about simulating it , any help would be very much appreciated .

December 22, 2019, 12:36		#2
Tobi Super Moderator Tobias Holzmann Join Date: Oct 2010 Location: Tussenhausen Posts: 2,708 Blog Entries: 6 Rep Power: 51	Dear CFDJunior, for CFD simulations you always have to do the following Geometry preparation Geometry meshing Defining boundary conditions Running and solving your equations Postprocessing Please read the User-Guide of OpenFOAM to get more familiar with these topics. __________________ Keep foaming, Tobias Holzmann

December 22, 2019, 12:49		#3
Cfdjunior New Member Join Date: Dec 2019 Posts: 17 Rep Power: 6	Hi, Thank you , I have done the first three processes, the meshing is done , the constant file has been prepared with boundary conditions, now I need to use simpleFoam as a solver to solve the equations and need to setup the system and 0 files, I am not sure how to go about the next few steps even after reading the user guide Last edited by Cfdjunior; December 23, 2019 at 05:06.

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December 25, 2019, 07:18		#4
Cfdjunior New Member Join Date: Dec 2019 Posts: 17 Rep Power: 6	I am kind of stuck at making fvOptions for the system file

January 2, 2020, 10:59		#5
Cfdjunior New Member Join Date: Dec 2019 Posts: 17 Rep Power: 6	OK , now i have made some progress on the exhaust fan , but now i am kind of stuck in specifying the geometry or the coordinates needed for snappyhexmesh dictionary . I took the system file from the rotatingfan in the room tutorial . Is there any way to find the coordinates needed for this ?