pk - , .
pk = p 2 = βk ∙ p 1, (5.10)
βk - p 2/ p 1, .
k =1,66; βk = 0,49;
k =1,4; βk = 0,528;
k =1,3; βk = 0,546.
- , pk:
. (5.11)
, :
. (5.12)
, . - (. 5.1).
, α=8-12. . (5.7) (5.9).
l = (D /2 - d /2) tg (α /2), (5.13)
α - ; D - ; d .
- , . , (. 5.2). , p 2 p 1.
, .
, , . . , (). , ( ).
. , . , . .
- , .
|
|
:
u 2 - u 1 = p 1 v 1 - p 2 v 2
u 2 + p 2 v 2 = u 1+ p 1 v 1.
(h=u+pv) , . :
h 1 =h 2. (5.14)
(5.14) , .
- . , ( 1= 2).
, , , (, ).
-. - .
α = (∂T / ∂p) i. (5.15)
α -.
. (5.16)
Δ T ≠0 .
, , , , , :
= v (∂ /∂ v)p. (5.17)
- . , .