4. (
) .
.
, . .
, , . , , , , , , , .
, .. . , . , , . .
:
=f(ReH; Bu; α; l/d; σ), (4.1)
; ReH ; Bu () ; α ; l/d , ; σ , , .
(4.1)
=1/(1+ψ-1σ(ReH)0,55 Bu-0,86 (l/d)-0,75), (4.2)
; Ψ , ( ).
, , , .
|
|
=(Ia-IT)/(Ia-ICT), (4.3)
Ia, IT, I , , /.
ReH=ωd/ν, (4.4)
ω , ; d , ; ν , 2/.
u=d, (4.5)
, 1.
(4.2) :
=0,15÷0,67; ReH=55÷400; Bu=0,25÷1,1