a) \(\frac{\partial(\rho\Phi)}{\partial t}\)
b) \(div(\rho\Phi\vec{u})\)
c) div(ΓgradΦ)
d) ΓgradΦ
Answer: b
Explanation: \(div(\rho\Phi\vec{u})\) is the convective term of the transport equation. Convection is the flow of fluid into and out of the model of observation
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