A plane flow has velocity components u = x ; v =yT1T2w =

A plane flow has velocity components u = x ; v = y
T₁ T₂

w = 0 along x, y and z directions respectively, where T₁ (#0) and T₂ (#0) are constants having the dimension of time. The given flow is incompressible if

For incompressible flow,

∂u	+	∂v	= 0
∂x		∂y

	u =	x	; v =	y
		T₁		T₂

1	−	1	= 0
T₁		T₂

∴ T₁ = T₂.