Page 105 - Aeronautical Engineer Data Book
P. 105
82
A flow described by a unique velocity The principle of force = mass acceleration (Newton’s law of motion) applies to fluids
Explanation potential is irrotational. and fluid particles.
�
�
∂x ∂y
∂ 2 + 2 ∂y X – ∂p �
Y – ∂p �
= 0 = ∂ 2 2 ∂x ∂ 2 2 ∂y ∂t
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
