.
, , , Q . Qm ,, :
(4.1)
.. :
(4.2)
, :
, (4.3)
.
, :
Q | Qm | ||
, :
(4.4)
.
1. , :
(4.5)
b .
(, b 4,5×10-101/) :
(4.6)
:
, (4.7)
:
(4.8)
.. .
2. - :
Þ (4.9)
r - .
:
(4.10)
) - :
(4.11)
Q , :
(4.12)
4.11 :
(4.13)
(3.3) , .5:
(4.14)
) ( (3.5)) :
(4.15)
.
(3.7) :
(4.16)
:
(4.17)
, , , :
(4.18)
: , .
4
|
|
4.1
R, r, μ, p, p, h, .
4.2
. p = 9,8 , p = 6,86 , Q = 8∙105 3/. R =750 , r = 0,1 , h = 10 , m = 20%. , r =50 .
4.3
r = 0,1 r =150 , = 7,84, h =12 , m = 20%, Q =2×106 3/.
4.4
r, , , , Q =2106 3/, h = 10 , m = 19 %, k = 0,6 , μ =1,4×10-5/×, r =0,7/3.
: Re =0,022
4.5
, Q =2106 3/, =7,84 , h = 10 , m = 18 %, k = 1,2 , 18 /, μ = 0,015 , T= 45.
, r = 0,1 ( ).
4.6
R = 10 , h = 15 , k = 400 , μ = 1,02 ∙, β = 4,64∙10-10 -1. p = 11,76 , =7,35 , r = 0,1 . .
, . .
: (4.5).
4.7
r , p =70 p =100 . R = 1000 , r = 10 .
4.8
, , , , h = 25 , k = 250 , m = 0,014 ∙, r = 0,650 /3, r = 0,1 , R = 900 , p = 2,94 p = 3,92 . .
|
|
4.9
(4.18) , r = 0,1 , R = 1000 .
p, /2 | p, | Q, .3/. |
95,3 | 94,5 | 85,52 |
95,3 | 210,75 | |
95,3 | 89,5 | 251,21 |
4.10
( r =850/3) =51 Qm = 50/ . L = 5000. : k =1, h =10 , b =10-101/, =1000.
.
.
: (4.5).