How to determine viscous resistance and inertial resistance porous media
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:confused::confused::confused::confused::confused: :confused::confused:
I can't understand how i can enter these coeffiecents please look at the picture and i work with cavites porous media ----- please i wanna your help my problem is simulation enclosure porous media and i dont what does mean these coefficients look at the picture this is the attached picture... thanks Djilali:confused: |
Quick question: Have tried clicking on the "Help" button?
I say this because the documentation provided by the application should explain what all of those parameters are, and how they should be calculated. |
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help doesn't work if you knows any things about it plz help me |
I did just now a quick search with Google for
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CFD porous media
I then searched for: Code:
fluent "porous zone" direction-1 Everything you're asking for seems to be explained on that page. Good luck! |
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As I wrote before, everything is explained on this page:
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but c2 how can i enter and what is the relation betwen c2 and inertial resistance Direction-1(1/m) and thanks bro Djilali |
Inertial Losses in Porous Media????????????????
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http://www.cfd-online.com/Forums/att...1&d=1429395943
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http://www.cfd-online.com/Forums/att...1&d=1429309467 |
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fluent porous c2 |
hey Bruno Santos
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hey Bruno Santos
i wanna ask you why we puts the values of viscous and inertial Resistances in direction-1 bigger than direction 2 i work with 2D and should i put the same way? and i work on heat transfer in enclosure porous media one side is has temperature heat the red one and other has temperature cold the blue one and the walls orizontale are adabatic. as you know my assumptions the medium is homogenous and isotropic look at the picture you will understand what i mean please bruno help me thank you for everything you did with me before Djilali http://www.cfd-online.com/Forums/att...1&d=1429527964 Which method suitable for my problem to derive viscous and inertial loss coefficients? 1. Method: Deriving Porous Media Inputs Based on Superficial Velocity, Using a known Pressure Loss. 2.Method: Using the Ergun Equation to Derive Porous Media Inputs for a Packed Bed 3.Method: Using an Empirical Equation to Derive Porous Media Inputs for Turbulent Flow Through a Perforated Plate. Well my model is 2d and i have flow in both directions. why that the viscous and inertial resistance in the y-direction is 10 times larger than that in the x-direction.so does this mean that I have to set X=0.1 and Y=1 |
Hi Djilali,
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I don't know what you should do in this case. It seems to me that you should ask for more details from whomever gave you this task. Good luck! Best regards, Bruno |
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