1. .
, :
D | |
D | |
D | |
D | |
G∑ | |
G.. = G | |
p* | |
T* | |
w (λ) | |
T* | |
G | |
α∑ |
2. . D = (0,3 0,6) D..
w . , , (1.3) w. , Qvp = 2400 /3∙ ℓ = 600 w= 81 /.
w w 0,45 - 0,55.
w/w = ∑ F/F. ∑ F:
∑ F = z∙F = (0,45 - 0,55)F., z - (z = 8 - 12).
:
.
l = (2,8 4,2)∙D.
, F'/F'' = ℓ'/ℓ'' (. 4.29).
3. .
, , . , , :
k = w/wp = (1,5 - 2,5) - .
α = (0,4 - 0,6), , , n = n ≈ 2,
, , . , .
|
|
4. .
. 4.27 . (1, , , I), (1,2,3), (4,5), (), (I). , , .
αi = Gi / G L0.
5, .
, η = 0,97 - 0,98,
. ℓ =2 0÷30
η = 0, ( 2 .4.29), η = 0,15 -0,25 η = 0,97 0,98
. 4,27.
6. .
(*p const) (*p=.const). .
pi = pi* Ti = Ti*∙
wi = λia,
.4.27.
7. , i .
.4.30 ( ).
.4.28.
8. .
. , w = 25 ÷ 60 /, t = ≈ 1,4 - 2,0 y= y/r = 0,4 - 0,5.
.., :
;
, w =
, , .
|
|
, :
μ - , . 4.29.
.4.29.
9. . . , . , . i = 1 :
pi* = pi* - (∆p* + ∆p*).
, , :
pi = pi - ∆pi.
, . 4 (.4.27) . t = 1,9 - 3,4 y = 0,4 - 0,5., , .
10. .
.. [2] . . , , . . .
11. .
() . , :
n = 5 - 10.
:
(4.51)
p = p0*
F0 = π/4(D2 d2) nδ(R3 r), (4.52)
δ ≈ I - .
FA = F0cosφ
(4.53)
:
(4.54)
- , . :
≈ 0,63 ÷ 0,65. (4.54) :
p = σ p0* π(λ); ρ = ρ*ε(λ); wφ = w sinφ; w = λ,
(4.55)
(4.55) 0* λ. * ( ). . , λ , p (.4.30). φ (4.53). , φ, , , . , .., , φ = 30 - 40 , . , . σ 0,7 - 0,8. , . "" (.4.31), φ 2 - 3, . , = φ - (2 -3 ), , .
|
|
12. , .
σ.. = p*/p* ≈ 0,97 - 0,98
:
w - .
≈ 1,0;
∑F0 -
:
.
= .
.4.30. p = f (λ,φ)
.4.31.