|January 7, 2015, 09:59||
Direction vectors in Porous Medium
Join Date: Jul 2014
Posts: 9Rep Power: 4
I am doing cfd analysis of simple rectangular duct with oil as fluid.Wavy type turbulators are inside the duct.I am using Porous model for pressure drop analysis(in Fluent 14.5) due to complex geometry of turbulator.
I am confusing about Direction -1 vector/Direction -2 vector/Direction 1,Direction 2 ,Direction 3.
I dont know how to enter resistance in direction Z considering flow direction for my geometry.I am attaching image file with this.
I am waiting for your reply guys.
Thank you so so much in advance.
|January 8, 2015, 03:44||
Join Date: Jan 2010
Location: Laval University, Canada
Posts: 383Rep Power: 9
Since the duct seems to be aligned with the coordinate axes (x, y, z), leave the default values
Direction-1 Vector => X=1, Y=0, Z=0
Direction-2 Vector => X=0, Y=1, Z=0
Regarding the resistance, it depends on the properties of the porous material. If the material is isotropic, enter the same values for all directions.
|February 22, 2016, 14:10||
Join Date: Feb 2012
Posts: 86Rep Power: 6
I have a question regards to the Direction-1 vector in a 2D axi-symmetric model in Fluent for a porous zone. I want to have viscous and inertial resistance in both x and y (basically axial and radial direction)...Do I need to set x=1 ,y=0 or x=1, y=1 in Direction-1 vector section?
I think it should be x=1, y=0 for Direction-1 vector and fluent automatically consider x=0,y=1 for Direction-2 vector which is not shown explicitly.
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