, (14.4), ( 17.1) , .
17.1 ,
2-3 | 4-6 | 7.5-12.5 | 15-20 | |
t., c t., c t., . | 10-12 26-36 50-52 4.9-5.1 1.1-1.05 | 10-12 30-42 54-56 5.2-5.4 | 10-12 36-48 57-62 5.5-5.7 0.95-0.9 | 10-12 40-56 66-70 5.8-6.0 0.9-0.85 |
(3/)
Q = 3600 /, (17.3) , ; . 3;
= q ./( .); (17.4) q , ; - , /3; . . .
. . dmax < 0.35
.................... 4 - 4.5 5 5.5 6 6.5
........................................................................ 1.3 1.35 1.25 1.3 1.2 1.25
........................................................................ 1.2 1.25 1.15 1.2 1.1 1.15
. 0.91.0 d = 0.4 4.45 ; . , .
( , ..) , ()
= t + t. + t. + t = t + 2 ℓ/V +t, (17.5) t , : t. t. , ; t , ; ℓ - , ; V , /.
t = t. ./.. (17.6)
17.2.
17.2 -
, | / , | ||
180 | 220 | ||
- | 9 12 10 -15 12 - 18 | 1.4 1.6 1.2 1.4 1 1.1 | 1.5 1.7 1.4 1.5 1.2 1.4 |
|
|
- , 20 25 , 1 1.8 /. 17.2.
- .
3 4