Test Academy | For a two dimensional, incompressible flow having velocity components u and v in the x and y directions, respectively, the expression δ ( u 2 ) δ x + δ ( u v ) δ y can be simplified to u δ u δ x + u δ v δ y , u δ u δ x + v δ u δ y , 2 u δ u δ x + u δ v δ y , 2 u δ u δ x + v δ u δ y

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For a two dimensional, incompressible flow having velocity components u and v in the x and y directions, respectively, the expression $\frac{δ (u^{2})}{δ x} + \frac{δ (u v)}{δ y}$ can be simplified to

Options :

$u \frac{δ u}{δ x} + u \frac{δ v}{δ y}$
$u \frac{δ u}{δ x} + v \frac{δ u}{δ y}$
$2 u \frac{δ u}{δ x} + u \frac{δ v}{δ y}$
$2 u \frac{δ u}{δ x} + v \frac{δ u}{δ y}$

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