1.1
.
: .
- , , , . , (, ), .
- , , , . .
, , . . , - , . , , - , .
,
Re = v d / n,
v- ; d - ( - ); n- .
. , Re, , .
, , . , , Re=2320.
Re<Re , Re>Re - ; Re< Re< Re - .
.
- , .
.
(). Re. . 1.2.1 .
W =100 3 W = 1000 3, .
. . . . .
|
|
. 1.2.1.
( , ). , , . . . W 100 3 t = 30 . . 2.1.
, . . 26 : - .
W 1000 3 t = 10 . . 1.2.1.
6, .
, , Q
v.
. Re, v .
1.2.1
| |||
1 | 2 | ||
1 | |||
2 | d, | ||
3 | ω=π d 2 /4, 2 | ||
4 | W, 3 | ||
5 | t, | ||
6 | Q = W / t, 3/ | ||
7 | V = Q / ω, / | ||
8 | t, ◦ | ||
9 | n, 2/ (. 1, 1) | ||
10 | Re = v d / n, | ||
11 | , Re Re=2320 |