# packed bed

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 August 31, 2006, 05:01 packed bed #1 rakesh Guest   Posts: n/a can any body help me in simulating the packed bed by 'porous media approach', thanks

 September 1, 2006, 01:21 Re: packed bed #2 Wilson Guest   Posts: n/a Rakesh Yes I can help you on this. What you really need on porous media approcach? Please me elaborate. Thanks Wilson

 September 1, 2006, 04:56 packed bed #3 Rakesh Guest   Posts: n/a Thanks for responding, actually i m trying to simulate a simple case of packed bed,1m length and 100mm dia,packed with 10mm glass beads(density 2500kg/m3. now air is flowing to upward direction from bottom with 0.5 m/s. i m selecting the following options. define-models-solver-axisymmetric,unsteady define-models-viscous-laminar materials-air as default operating conditions-operating pressure=101325 as default enabling gravity X=-9.81, Y=0 enabling specified operating density option. boundary conditions-enabling porous zone option-direction-1 vector 1,0 as default,viscous resistance direction 1=4828045, dirction 2=0 as calculated form the formula given for packed bed, inertial resistance direction 1= 2054.495 ,direction 2=0 power law coefficient C0=0, C1=0, porosity =.453 given as experimental value. solve- initialize-inlet-velocity =0.5. after iterating the above i m not geting the desired result of pressure drop. any kind of help in this regard is welcome thanks

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