S, (), - ( 3 ¸ 4 d) (. 21)
, ()
n , / (/), , : DL; , ; ,
n = N II + Gp + nGc + Gr, (86)
N II , / (/), gf = 1,0, , ; Gp , (),
Gp = Vpgb, (),
Vp , 3; gb , 25 /3 (2,5 /3); n , ; Gc , (), ; Gr , : V.. = [ S × lp ], , , Gr = (V.. Vp Vc)× ,
Vc , 3; E n , (/2), , , [20]. - . 1, . 1 . 3 [24]. n : n = 0,27; n = 0,30; n = 0,35; n = 0,42; d 0 , . 3 [21], n, , b , ; h ) Hc / h, Hc .
d 0 . , Hc / h, , , n. , , d 0.