Page 104 - Aeronautical Engineer Data Book

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Explanation
A flow described by a unique velocity ∂ 2 potential is irrotational. + = 0 = ∂ 2 2 2 ∂y ∂x ∂ 2 2 The principle of force = mass acceleration X – ∂p (
The equation ∂ 2
+ ∂ 2
2 2 ∂y ∂x or 2
= 2 = 0, where ∂ 2 + 2 = 2 ∂y ∂x ∂u + u ∂u + v ∂u = 1 ∂x ∂t ∂v + u ∂v + v ∂v = 1

Table 5.3 2D flow: fundamental equations Basis Laplace’s equation Equation of motion in 2D