dv
1
v
= G − grad p − x dt
ρ
2 D
Założenia:
ρ = const Q = const m
G = const λ = const
∂ v
∂(ρ v)
∂(ρ vρ)
= 0 ;
= 0 ;
= 0
∂ t
∂ x
∂ x
2
dv
λ
2
1
v
(
) = −
dp −
dx
v
dx
ρ
2 D
2
2
2
λ
ρ
2
1
2
2
1
v S
d
= − dp −
dx
ρ
2
2
v S
2
2
ρ
2
2 D
ρ S
ρ S
Q = const 2
λ
2
1
1
Q
d
= −
2
Q
dp
dx
2
2
2
2
ρ
2 D
ρ S
ρ S
2
1
λ Q
dp = −
dx / ∫
2
2
ρ
2 D ρ S
2
1
p
λ Q
p
x = −
dx
ρ
p
2
2
0
2 D ρ S
2
1
λ Q
( p − p ) =
x
x
2
0
2
ρ
2 D ρ S
2
λ Q
p = p −
x
x
2
0
2
2 D ρ S