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ul is the velocity vector (SI unit: m/s)
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p is the pressure (SI unit: Pa)
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ρ is the density (SI unit: kg/m3)
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g is the gravity vector (SI unit: m/s2)
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F is any additional volume force (SI unit: N/m3)
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μl is the dynamic viscosity of the liquid (SI unit: Pa·s), and
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μT is the turbulent viscosity (SI unit: Pa·s)
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