Darcy-Forchheimer Porous Source

Compare Darcy viscous and Forchheimer inertial terms for CFD porous-zone momentum sinks.

visual calculatorPorous Media & Rheology

Read the flow shape before trusting the number.

This page turns a CFD setup into regime, scale, and dominant-effect cues. Adjust the calculator below and compare the moving graphic with the computed result.

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DarcyForchheimerporous zonemomentum source

formula

KaTeX rendered

\begin{aligned}\text{S = -(mu/K) U - C2 rho |U| U}\end{aligned}

ASCII source

S = -(mu/K) U - C2 rho |U| U

U (m/s)permeability K (m2)Forchheimer C2 (1/m)zone length (m)rho (kg/m3)mu (Pa s)

Darcy viscous term1.440e+4

Forchheimer inertial term940.80

Darcy dp/dz

1.440e+4

inertial dp/dz

940.80

Delta p (Pa)

6136.32

dominance

Darcy dominated

Matches the common CFD porous momentum sink form: S = -(mu/K)U - C2 rho |U|U.

Darcy Forchheimer porous zone momentum source