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, , S1 S2, Δ . , Δ , . Δ , , ..

Δ = Δ1 + Δ2

(38) (39)

φ/β, , (36, 37, 39, 40), a1 a2 φ/β. λ = f1(φ/β). λ (, 68), + , . , 1.5 < λ < 6,5

a = 0,108 + 0,0081 λ (55)

(55) , λ (53).

, (53) λ , Δ > Δ , Δ (54) (55).

, (. 66), Δ , W . , Δ Lk (. , 66),

( b = 0)

Δ - .

. 68

, Δ/R = 0,01,

Δ = Δ (56) (54) (55) λ:

D/Re^0,182, , λ = F(l). (50) (54), (55) . Δ l.

 

 

. 69. , 70. .

Dk/Re0.182 = 2,1510-2 . 69 70.

. 69 (, Re=4,4510-8), (. 51, 52).

. 69 70 , l, l . l , , . l , VII.

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