1.

Under steady condition, equation of conservation of mass for a fixed control volume is given by [V : Velocity vector and \(\hat n\): outward normal unit vector of area dA]

A. \(\mathop \smallint \nolimits_{cs} \rho (V \times \hat n)dA = 0\)
B. \(\mathop \smallint \nolimits_{cs} \rho V\left( {V \cdot V} \right)dA = 0\)
C. \(\mathop \smallint \nolimits_{cs} \rho \left( {V \cdot V} \right)dA = 0\)
D. \(\mathop \smallint \nolimits_{cs} \rho (V \cdot\hat n)dA = 0\)
Answer» E.


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