, (7.1)
m - - , t - ; du/dy - , . t du/dy , (. 7.1, 2).
, (7.1), , . .
1. , ( ):
, (7.2)
2. , t du/dy (- ), . .
, (7.3)
3. , . . , , , , . ; , .
, (7.2), .
1. , (7.2)
t>t0, (7.4)
t£t0.
, ( ), . 7.1 ( 4 ). (7.3), m, t0, ( ) . , t£t0 . , t, t0. t t0, .
2. . , . , , 0 1.
, (n<1), (7.5)
k n ; k - ; n . (7.4) . 7.1 ( 3). , , .
m * :
.
, (7.4), n <:1, m* .
3. (7.4), n >1. . 7.1 ( 1). m* . .
|
|
- . (7.3) :
u >0; (7.6)
, u =0, - (7.7)
() .
(7.5) u , ½gradp½>g (. 7.2, 1 ). , 2 . 7.2. . 7.2 ( 3 ).
, , . (), . , (7.5).
. , , , . . . . .
- , g, . . g1>½grad½, . g1<½grad ½<g2, , . .
(7.6), , :
, (7.8)
; n >0.
, (7.4), .