Why is the flow result of the porous media model incorrect?

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  • Last Post 08 March 2019
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h395523899 posted this 08 March 2019

My model is a simple rectangular parallelepiped medium

10*10*50 mm

Permeability 1 D

Entrance pressure 1000000 pa.

Export pressure 0 pa

Water density 1000 kg/m3

Viscosity 1 mpa.s

If calculated using the permeability formula

The flow rate Q should be (1*9.869*1)/(1*5)=1.9738 cm3/s=1.9738*10^-6 m3/s

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h395523899 posted this 08 March 2019

Formula calculation results are different from simulation results

Is this because of the error generated by the simulation?

Or is there a problem with the parameters I set?

abenhadj posted this 08 March 2019

The formula is neglecting convective and diffusion transport but though the results are not far from one another. You can try if physical velocity would enhance the run.

Best regards,

Amine

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