. .
. , , , , , ( , ).
. . , . .
.
.
, () :
qc = - l ( T / n)n=0,
n .
a = ( / n)n=0
. 20
. w0, 0.
. , ( ). . ( 1904 . . ).
, , .
w/ ¹ 0; w/ = 0 w = w0
, . w0.
d , e << 1 ( 1%) = d w = (1 - e)w0.
, 2 : . , . , .
|
|
:
,
w0 ; u - (2/); l .
, .
.. . , , 0, , . / ¹ 0, / = 0 = 0
, , .
, . . , , .
. 22
. 22 .
.
. , - .
, : . , .
. . , .
. w ( ), . w w¢. :
, , , .
. , , . . ¢ :
, , , . , , , . . , .
|
|
. . . , , .
- , - . . , , . .
, , , .
, , .
, T0 w0 .
, ( , ). ( ). , . g = g, ( ) OZ gy = gz = 0. OZ l0.
:
w u/ + wy u/y = a 2u/y2 ,
( k >> l, , 2u/2 = 0), u = 0.
w w/ + w w/ = n 2w/2 + gbu - ,
.
u = 0; w
dw x /dt = w x /t + w w/ + w w/ + wz wz/z
= 0,
() . . .
. : :
,
v¢ v¢ - ; v - .
.
, , .
( , ) , .
|
|
, , Y :
S = r 2(dv x /dy)2,
.
.
w/ + w/ = 0
:
1) ( = ¥)
u = u0 = 0; w = w0; w = 0
2) ( = 0, 0 £ £ 0, -¥ £ z £ +¥)
u = u º 0 = const; w = w = wz = 0
3 :
, ;
- u , w, w;
- w0, T0, 0, n, , g, b . .
, u , w, w .
, , . < .
. - , , l0, w0, u.
:
= / 0; Y = / 0; Wx = w/w0;
Wy = w y /w0; Q = u/ u. ()
0 = ; Y 0 = ; Wxw0 = w;
Wyw0 = w y; Qu = u. ()
(), :
(Wx + Wy ) = Q2/Y2
= w0 0/
w0 0/ = rw0u/lu/ 0 , , , .