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wanghong November 24, 2004 23:17

porous medium
 
anybody know the physical meanings of energy equation for porous medium ?help me pls.i need a good case about porous medium.

gts November 28, 2004 10:11

Re: porous medium
 
Try these, may be it is helpful:

Nield, D.A.; Bejan, A.: Convection in Porous Media, 2nd ed. New York, Springer, 1999

Vafai, K.(ed.): Handbook of Porous Media, Mercel Dekker, New York, 2000

Ene, H.I.; Polisevscki, D.: Thermal Flow in Porous Media, Reidel, Dordrecht, 1987

Ingham, D.B.; Pop, I. (eds.): Transport Phenomena in Porous Media, Pergamon, Oxford, 1998, Vol. 2, 2002.

Evan Rosenbaum November 29, 2004 13:15

Re: porous medium
 
If you are referring to the implementation of the porous medium in FLUENT, there is no impact on the energy equation. FLUENT only applies an additional sink term to the momentum equation.

Ralf Schmidt December 5, 2004 14:52

Re: porous medium
 
look at fluent manual, section 6.19.3: "Treatment of the Energy Equation in Porous Media"

"FLUENT solves the standard energy transport equation in porous media regions with modifications to the conduction flux and the transient terms only."

Also "The effective thermal conductivity in the porous medium is computed by FLUENT as the volume average of the fluid conductivity and the solid conductivity"

vittal October 27, 2011 06:09

porous media
 
hello
i am modelling porous media using discrete phase model.
I am unable to calculate permeability
I know velocity 5.6 m/s
pressure 5600pa
thickness of porous medium 0.15mm
droplet diameter 0.5 mm


Quote:

Originally Posted by Ralf Schmidt
;116504
look at fluent manual, section 6.19.3: "Treatment of the Energy Equation in Porous Media"

"FLUENT solves the standard energy transport equation in porous media regions with modifications to the conduction flux and the transient terms only."

Also "The effective thermal conductivity in the porous medium is computed by FLUENT as the volume average of the fluid conductivity and the solid conductivity"



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