only expert in porous media and fluent

djodjo · May 10, 2015, 17:15

hey all Dears, I am simulating a flow and heat transfert in cavity square porous media look at fig 1

Figure 1

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.

second as we know in porous media there are 4 models
1-model of Darcy
2-model of Darcy-Forchheimer
3-model of Darcy-Brinkman
4-model of Darcy-Forchheimer-Brinkman
the quastion is how i can use the model of Darcy-Forchheimer-Brinkman in fluent
Thanks

dotapro · May 21, 2015, 00:06

Fluent could only support up to Darcy-Forchheimer model. You could need to write an UDF to represent Brinkman term and hook them inside.

mrh111 · July 20, 2015, 14:54

Hi every body
I don't know how determine initial velocity for the flow in porous media.
Thank you for time and consideration.
Best regards

May 10, 2015, 17:15	only expert in porous media and fluent	#1
djodjo New Member Djilali Join Date: Apr 2015 Posts: 11 Rep Power: 0	hey all Dears, I am simulating a flow and heat transfert in cavity square porous media look at fig 1 Figure 1 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. second as we know in porous media there are 4 models 1-model of Darcy 2-model of Darcy-Forchheimer 3-model of Darcy-Brinkman 4-model of Darcy-Forchheimer-Brinkman the quastion is how i can use the model of Darcy-Forchheimer-Brinkman in fluent Thanks

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May 21, 2015, 00:06		#2
dotapro Member Join Date: Oct 2013 Location: Malaysia Posts: 39 Rep Power: 13	Fluent could only support up to Darcy-Forchheimer model. You could need to write an UDF to represent Brinkman term and hook them inside.

July 20, 2015, 14:54		#3
mrh111 New Member mohammadreza Join Date: Jul 2015 Posts: 16 Rep Power: 11	Hi every body I don't know how determine initial velocity for the flow in porous media. Thank you for time and consideration. Best regards