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Table 4 Specializations of the generalized conservation equation [30]

From: Numerical Visualization of Grease Flow in a Gearbox

 

\(\Phi\)

\({D}_{\Phi }\)

\({Q}_{\Phi }\)

Mass conservation

1

0

0

Impulse conservation

\(\overline{u }\)

\(\nabla \cdot \overline{\tau }\)

\(-\nabla p+\eta \Delta \overline{u }+\rho \overline{g }+F\)

Energy conservation

h

\(- \nabla \cdot \overline{{q^{\prime\prime}}}\)

\(\frac{\partial p }{{\partial t}} + \nabla \cdot \left( {\overline{\tau } \cdot \overline{u}} \right)\)