--
531.383
26 . /: . . . -, 2007. 6 .
, . .
: .., ..
..
2007 ., . 160
29.01.07.
6084 1/16. . . .-.. 0,4. 50 .
-
.
344022, --, ., 162.
, 2007
26
: .
: , , , , , , .
I.
( ) . . , , , . : , , DS Dv/Dx.
F = -h (Dv/Dx) DS,
h - () - [/( )] , /2.
, 1 2 ¾ 1 -1.
, . . , , , .
, , . , . :
|
|
F = 6phrv, p = 3,14, h - , r , v .
II.
1. (. ).
- 2 . , 10 .
3. d .
Dd dd
.
4. L
FA 2 .
FC DL dL
5.
L .
mg <t> , Dt dt
.
6. d, L t
2 1 2.
1
d | Dd | dd | L | DL | dL |
2
t1 | t2 | t3 | t4 | t5 | t | Dt | dt |
7. (6), r .
8. :
dh = Ö(dd)2 + (dt)2 + (dL)2;
Dh = h dh.
8. .
III.
1. ?
2. ?
3. ?
4. ?
5. ?
IV.
1. .. . .: , 1970.
2. .. .- .: , 1989.
rv2/2 + = const | |
V = pR4Dpt/(8hl) | |
F = -h DvDS/Dx | |
Grad v = Dv/Dx | |
Grad v = Dv/Dx | |
V = pR4Dpt/(8hl) | |
rv2/2 + = const | |
F = -h DvDS/Dx | |
? | |
? | |
? | |
, | |
V = pR4Dpt/(8hl) | |
F = -h DvDS/Dx | |
F = 6phrv | |
rv2/2 + = const |
|
|