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????? ??? "????????????? ??????????????? ???????????????????? ????????"
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2012
???????? ????? ???????????? ??????? ?????? ???????? ? ????????????
Q=Q_F+Q_CD=(16?^3)/?+(0,7?^3)/???=(16,7?^3)/???=(0,0046?^3)/???
???????? ??????? ????????????
d=v((4*Q)/(p*v))=1.13*v(Q/v), ???
v-???????? ??????? ????????, ?/?
?? ?.?. ?????????? ??????????? ????? ???????, ??? ???????????? ?????????????? ??????? ???????????? ?????? ????????????? ???????? ??????? ????????, ???????? ?????? 1?/???, ?? ???? ????????, ????????????? ?? ???????:
d=1.13*vQ=1,13*v0,0046 ?=0.08?.
???????? ????? ??????? ????????
Re=(v*d)/?, ???
?-?????????????? ???????? ????????, ??^2/?
Re=(v*d)/?=(1?/?*0,08?)/((0,12??^2)/?)=6666
???????? ???????? ????????????? ????????????? ?????? ?_?=0,1 ??.
?????? ???????? ????? ?????????? ? ?????????? (10*d)/?_? , ???
?_?- ????????????? ????????????? ??? ?????
(10*d)/?_? =(10*0,08?)/0,1??=8000
Re<(10*d)/?_? ???????? ??????????? ??????????????? ??????, ????, ??? 4000�Re�(10*d)/?_? ????? ? ?? ??????? ????????-?????????.
1/v?=-2*lg?(0.27*?/d)=-2*lg0.0007=-2*(-7.26)=14.52
v?=1/14.52=0.07
?=0.005
???????? ?????? ?? ?????? ?? ?????? ???????:
h_??=(?*l*v_?^2)/(2*d*g), ???
l- ????? ??????? ????????????, ?
g-????????? ?????????? ???????, ?/?^2
h_?? (AB)=(0,005*24?*(1?/?)^2)/(2*0,08?*9,8?/?^2 )=0,08?
h_?? (BC)=(0,005*0,5?*(1?/?)^2)/(2*0,08?*9,8?/?^2 )=0,0016?
h_?? (CD)=(0,005*16.4?*(1?/?)^2)/(2*0,08?*9,8?/?^2 )=0,05?
h_?? (DE)=(0,005*0,5?*(1?/?)^2)/(2*0,08?*9,8?/?^2 )=0,003?
h_?? (EF)=(0,005*0,5?*(1?/?)^2)/(2*0,08?*9,8?/?^2 )=0,03?
???????? ??????? ?????????????? ??????
h_?=?*(v_?^2)/(2*g), ???
?-??????????? ???????? ?????????????
h_? (?????? ???????, 90�)=1,19*((1?/?)^2)/(2*9,8?/?^2 )=0,06?
h_? (???????? ??????, a=45�)=9,5*((1?/?)^2)/(2*9,8?/?^2 )=0,48?
????? ?????????? ???????? ?????? ?????? ? ???????
??????? 1. ?????????? ???????? ?????? ??????
???????? ?????? ????????????? ? ???????? ???????AB???????? ?????????????BC???????CD???????DE???????EF???????? ???????????? ?? ?????, ?0,08 - -0,0016-0,05-0,003-0,03-??????? ??????, ?-0,480,06-0,06-0,06-0,06-0,48
???????? ???????? ?????????????? ??????
h_???=?�h_?? +?�h_? =0,08?+0,48?+0,06?+0,0016?+0,06?+0,05?+0,06?+0,003?+0,06?+0,03?+0,48?=1,36?
???????? ?????????????? ?????
H_?=z_?-z_?, ???
z_?- ????????????? ??????? ????? ????????????, ?
z_?- ?????????????? ??????? ?????? ????????????, ?
H_?=3?-3,5?=-0,5?
???????? ?????, ??????? ?????????? ??????? ???????
H=H_?+H_?+h_???, ???
H_?- ?????, ??????? ?????????? ??????? ?? ??????, ?
H=-0,5?+14?+1,36?=14,86?
???????? ???????? ??? ????????
?=?*g, ???
?-????????? ????????,??/?^3 ?=(846??/?^3 )/(1+0,0071*20)*9,8?/?^2 =8174,72?/?^3 ???????? ???????? ???????? ??????
N_?=?*H*Q=8174,72?/?^3 *14,86?*(16,7?^3)/?=563,5??
???????? ????????, ??????? ?????????? ????????? ?? ?????? ??????
N=N_?/?, ???
?-??? ??????
N=563,5??/0,93=605,9??
???????? ???????? ? ?????? ???????? ???????
P_???=?*(H_?+(z_??-z_?? )+h_(??? ??)), ???
z_??- ?????????????? ??????? ????? ???????, ?
z_??- ?????????????? ??????? ?????? ???????, ?
h_(??? ??)- ?????? ?????? ?? ????? ???????, ?
P_??? (A)=8174,72?/?^3 *(14?+(3,5?-3,5?)+0,08?+0,48?)=119023,9 ??
P_??? (B)=8174,72?/?^3 *(14?+(4?-3,5?)+0,0016?)=118546,5 ??
P_??? (C)=8174,72?/?^3 *(14?+(4?-4?)+0,05?)=114854,8 ??
P_??? (D)=8174,72?/?^3 *(14?+(3?-4?)+0,003?)=106295,9 ??
P_??? (E)=8174,72?/?^3 *(14?+(3?-3?)+0,03?+0,48?)=118615,2 ??
?? ?????????? ???????? ?????? ???????????? ???????? ????????, ?? ?????? ??????? ???????? ??????? ?????? ????????????: P_max=P_??? (A)=0,12???
???????? ?????????? ?????????? ???????? ??????? ?????? ????? ?? ???????:
d_???=(P_max*d_??)/(0,47*s_? ), ???
d_??- ?????????? ??????? ????? ? ???????, ?
s_?- ?????????? ????????? ?? ?????????? ??? ????????? ????, ???
??? ????? s_?=110 ???
d_(???=) (0,12???*0,08?)/(0,47*110???)=0,0002?
???????? ???????????????? ????? ? ?????? ???????? ???????
P_???/?=H_?+(z_??-z_?? )+h_(??? ??)
??? ??????? A:
P_???/?=14?+(3,5?-3,5?)+0,08?+0,48?=14,56? ??? ????? B:
P_???/?=14?+(4?-3,5?)+0,0016?=14,5? ??? ????? C:
P_???/?=14?+(4?-4?)+0,05?=14,05? ??? ????? D:
P_???/?=14?+(3?-4?)+0,003?=13? ??? ????? E:
P_???/?=14?+(3?-3?)+0,03?+0,48?=14,51? ???????? ?????? ????? ? ?????? ???????? ??????? ????????????
H_i=(v_i^2)/(2*g)+P_???/?+z_i, ???
H_i- ?????? ?????, ?
(v_i^2)/(2*g)- ?????????? ????? ? i-??? ???????? ???????, ?;??? ???? ??????? ???????? P_???/?- ???????????????? ?????, ?
z_i- ?????????????? ?????, ?
H(A)=((1?/? )^2)/(2*9,8?/?^2 )+14,56?+3,5?=18,11?
H(B)=((1?/? )^2)/(2*9,8?/?^2 )+14,5016?+3,5?=18,05?
H(C)=((1?/? )^2)/(2*9,8?/?^2 )+14,05?+4?=18,1?
H(D)=((1?/? )^2)/(2*9,8?/?^2 )+13,003?+4?=17,05?
H(E)=((1?/? )^2)/(2*9,8?/?^2 )+14,51?+3?=17,56?
H(F)=14?
????? ?????????? ???????? ???????????????, ?????????????????, ??????????? ? ??????? ??????? ? ??????? 2
??????? 2. ?????????? ???????? ???????????????, ?????????????????, ??????????? ? ??????? ???????
????????????ABCDEF??????????????, ?3,53,54433????????????????, ? 14,5614,514,051314,5110,95??????????, ?0,0510,0510,0510,0510,0510,051??????, ?18,1118,0518,117,0517,5614
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