Consider a model of finite control volume (volume V and surface area S) fixed in space with elemental volume dV, vector elemental surface area dS⃗ , density ρ and flow velocity V⃗ . What is the net mass flow rate out of the surface area?
(a) ∬VρV⃗ .dV
(b) ρV⃗ .dS⃗
(c) ∭VρV⃗ .dS⃗
(d) ∬VρV⃗ .dS⃗
I got this question in examination.
This question is from Continuity Equation topic in section Governing Equations of Fluid Dynamics of Computational Fluid Dynamics