2.2.1.
= (2...4)(2...5,55)(1,5...4)=6...80,
= 2...5,55 ;
= 2...4 ;
= 8...45 ;
= 1,5...4 .
= 2...4 .
2.2.2.
.
2.2.3. - = (2...4)(4...5.5)=9...22.
2.2.4. :
nδ ;
;
.
(. 3) Ft ; v ; D ; z ; p .
. 3.
(. 3) Ft, v, D. ( < 350 ).
, .
:
,
= 0,97 ;
= 0,93 ;
= 0,98 ;
= 0,99 .
P. = P / ,
n = 6×104 v/pD , 1. ,
n.. .
n. = n u u uT, 1,
u ;
uT u .
1...3. 2, 3.
. n
u = n / n.
, .
1
2 | |||
- | 0,63 | ||
- | 1,6...3,15 | ||
: 25< | 6,3 |
( ) , , u = u u = u, (. 1)
|
|
u = u/u
,
u = u.
. 1.
j. n 1, : 2= n 1 j; 3= n 1 j2 = n 2 j; n 4= n 1 j 3 = n 3 j ..
j = 1,41; 1,34; 1,25; 1,18.