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μ (SI unit: kg/(m·s)) is the dynamic viscosity of the fluid
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u (SI unit: m/s) is the velocity vector
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ρ (SI unit: kg/m3) is the density of the fluid
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p (SI unit: Pa) is the pressure
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εp is the porosity
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κ (SI unit: m2) is the permeability of the porous medium, and
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