1.
, (3.10)
ρ , / 3;
υ1 , /;
ζ .
ρ, / 3, (3.1)
/ 3.
ζ = 0,8
.
2.
, (3.11)
ρ , / 3;
υ , /;
ξ ;
l , ;
f , , 2;
u , , .
.68 /1/
(3.12)
, ;
L , .
, L = 1,85 , = 3 , , (3.12)
.
ξ = 0,03 .58 /1/.
l = 1,925 . (3.11)
.
3, 19. 120º
, (3.13)
ρ , / 3;
υ , /;
ζ 120º.
ζ = 0,55 3.6, .65 /1/. (3.13)
.
4, 18. 135º
(3.11). ζ = 0,25 3.6, .65 /1/
.
5, 15.
(3.11). (3.12).
L = 0,75 , = 3 . , (3.12)
.
ξ = 0,03, ξ = 0,04, ξ = 0,035.
l = 7,21 . (3.11)
|
|
|
.
6, 15.
υ0, /, (2.52) υ6, /, 6, 15
/.
Δh, , 3.11, .66 /1/. υ0 = 6,8 /, Δh = 29,8 . Δh6,15, ,
Δh6,15 = Δh 2, (3.14)
Δh , .
(3.14)
Δh6,15 =29,8 2 = 59,6 .
7, 16. 90º
(3.11). ζ = 1,1 3.6, .65 /1/
.
8, 12.
, (3.15)
ρ , / 3;
υ , /;
ζ .
ζ = 0,18 3.8, .66 /1/. (3.15)
.
9, 13.
(3.7), .67 /1/
, (3.16)
ρ , / 3;
υ , /;
ζ .
υ, /, (3.8), .67 /1/
, (3.17)
V , 3/;
F. , 2.
(3.17)
/.
S = 25 S = 22 3.10, .66 /1/. ζ = 10,05. (3.16)
.
9, 13 Δh9,13, , Δh
Δh9,13 = 7,23 2 = 14,46 .
10, 14.
, (3.18)
ρ , / 3;
υ , /;
ζ .
ζ = 0,25 3.9, .66 /1/. (3.18)
.
11.
υ0, /, (2.52) υ11, /
/.
Δh, , 3.11, .66 /1/. υ0 =1,21 /, Δh = 1,42 . (3.14)
|
|
|
Δh11 =1,42 2 = 2,84 .
h, , 3.3
3.3
| - | ρ, /3 | υi, / | 
| Δhi, | ||
| ζi | 
| |||||
| 0,847 | 9,74 | 0,80 | - | 32,14 | ||
| 0,847 | 3,97 | - | 0,025 | 0,17 | ||
| 3, 19 | 120º | 0,847 | 3,97 | 0,55 | - | 7,34 |
| 4, 18 | 135º | 0,847 | 9,78 | 0,75 | - | 20,25 |
| 5, 17 | 0,847 | 9,78 | - | 0,210 | 8,52 | |
| 6, 15 | 0,847 | 10,64 | - | - | 59,6 | |
| 7, 16 | 90º | 0,847 | 9,78 | 1,10 | - | 89,1 |
| 8, 12 | 0,847 | 2,6 | 0,18 | - | 1,03 | |
| 9, 13 | 0,847 | 2,6 | 11,50 | - | 14,46 | |
| 10,14 | 0,847 | 2,6 | 0,25 | - | 1,43 | |
| 0,847 | 1,88 | - | - | 2,84 |
Σ Δhi = 236,88
(3.6)
.
V, 3/, () , , (3.31), .77, /1/
, (3.19)
V , 3/;
n .
-2 , n = 2. (3.19)
3/.
t = 20 º, φ = 0,5 ρ = 1,2 / 3. ρ
ρ = 0,847 / 3, () (3.32), .77 /1/
, (3.20)
, ;
ρ , / 3.
, , (3.20)
.
.
(3.33), .77 /1/
, (3.21)
V , 3/;
D , ;
n , -1.
D = 1,2 , n = 1000 -1. (3.21)
.
(3.34), .77 /1/
, (3.22)
, ;
D , ;
n , -1.
(3.22)
.
3.9, .79 /1/ -12 12,5 η = 0,55.
