Курбатов Ю.Л., Шелудченко В.И., Кравцов В.В. Механика жидкости и газа: Учебное пособие
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f,ll,e A =
f(Re,
MD) - K03$qmQHeHT
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+
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+
al
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= pgz2 +
P2
+
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+
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(75)
B fH,ll,paBnHqeCKHX paCqeTaX ra30XO,ll,OB, TPy60IIPOBO.ll:OB,
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57
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pa3BUTOrO
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Kopuonuca
paBHbIM
e,nUHUIJ,e, TO
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24)
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(76)
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HapYIllUTCX,
ecnu
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ero
l.JaCTU BbIl.JeCTh
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+
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+
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+
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+
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(78)
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-
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58
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2
p W
2
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.
+_l_=p
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.
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nOTOKe
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.
Dr
2
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ra3a
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273
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w=wo
273
B+pJl36.
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T
101.3
TO
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w
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p w6Po T
101.3
PJlJlH.
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=
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273
B + p
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. '
a
pa60qaH
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w~po
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-
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2
273
B+
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BbIpa)l(eHHH
(81):
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CKOPOCTh
ra3a
rrpH
H.<p.y.,
M/c;
59