//о = / / + ^ =
, ’8
+ у Й т =
1’94
m '
Y o n t o m o n d a n siq ilish k o effits i y e n tn i d a s tla b £ = 0 , 9 6 ( k e y i n c h a l i k u n i n g
q i y m a t i h is o b l a r a s o s i d a a n i q l a s h t i r i l a d i ) q a b u l q i l a m i z .
2 . 1 9 - f o r m u l a d a n s h a r s h a r a q is m i a n i q l a n a d i .
b
=
Q
= _________ ^
= 5 57 m
e ■ m f l i H l ' 2
0,96 • 0,35 • 4,43 ■ 1,94
3/2
S h a r s h a r a k iris h q i s m i n i
= 6 ,0 m d e b q a b u l q ila m iz .
K a n a l b i l a n i n s h o o t n i b i r l a s h t i r i s h d a u s t u n l a r s h a k l i n i y a r i m d o i r a qilib
o l a m i z ( a = 0 , 1 0 m ) va y o n t o m o n d a n s iq ilish k o e f f it s i y e n t i n i a n i q l a y m i z .
£ = 1 - о ^
= , - 0 ’, 0 т
а
=
0 -9 7 6 -
A n i q l a n g a n y o n t o m o n d a n s iq ilish k o e f f its i y e n ti u c h u n s h a r s h a r a k iris h
q i s m i s u v o ‘t k a z i s h q o b i l i y a t i n i 2 .1 5 f o r m u l a b o ‘y i c h a te k s h i r i b k o ‘r a m i z .
0 = 0 , 9 7 6 0 , 3 5 -
6
, 0 7 Г 9 Л 2 • 1,9 4 3/2 = 2 4 , 5 3 > 0 = 2 3 , 0 m 3/ s
D e m a k , i n s h o o t b e r i l g a n suv sa rfin i o ‘tk a z a d i.
S h a r s h a r a p o g ‘o n a l a r i gidravlik h is o b i b ir i n c h i va oxirgi p o g ‘o n a ! a r u c h u n
o l i b b o r i l a d i . B u n i n g u c h u n s h a r s h a r a b i r i n c h i v a o r a l i q p o g ‘o n a l a r
b a l a n d l i k l a r i b i r xil b o ‘lishi k e r a k . S h a r s h a r a p o g ‘o n a l a r s o n i n i jV=3 t a
q a b u l q i l a m i z . B i r i n c h i va i k k i n c h i p o g ‘o n a l a r b a l a n d l i k l a r i n i
P = P = 2 ,Q
m d a n v a u c h i n c h i p o g ‘o n a b a l a n d l i g i n i P 3= l , 5 m q a b u l q ila m iz . I n s h o o t
k irish q i s m i k e n g l ig in i s h a r s h a r a k e n g l ig ig a t e n g d e b q a b u l q ila m iz .
B irin c h i p o g ‘o n a h iso b i.
S o l i s h t i r m a s u v s a rf i
q
=
=
3 ,8 3 m 3/ s .
D a s t l a b k i h i s o b l a r u c h u n q u d u q n i n g t a x m i n i y c h u q u r l i g i n i ^ , = 1 , 0 m d e b
q a b u l q i l a m i z . S h a r s h a r a p o g ‘o n a s i n i n i n g t u s h i s h b a l a n d l i g i
P = 2 ,0
m ,
s h u n d a 5 | = P | + t / 1= 2 , 0 + 1 , 0 = 3 , 0 m b o ' l a d i . S i q i l g a n c h u q u r l i k / t , n i
s o l i s h t i r m a suv sarfi
q
= 3 , 8 3 m 3/ s va te z lik k o e ffits iy en ti
= 0,91 b o ' l g a n d a ,
t a n l o v u su li b i l a n q u y i d a g i f o r m u l a d a n a n i q l a y m i z :
q = (phClyj2g(H0 + Sl - h Ci)
yoki
3 ,8 3 = 0 , 9 1 / ^ , 4 , 4 3 ^ 1 , 9 4 + 3 , 0 - , b u n d a n
= 0 , 4 5 m boMadi.
K e n g lig i d o i m i y b o ‘lg a n t o ‘g ‘ri b u r c h a k l i k e s im li suv u r i l m a q u d u g ‘idagi
t u t a s h c h u q u r l i k q u y i d a g i f o r m u l a d a n a n i q l a n a d i :
153
hTl
=0,5^,
1 +
8а~
ci
- 1
= 0 , 5 - 0 , 4 5
г т
т
щ
: ^
V
9,81 0,45
= 2 , 4 9 m .
V o d o s liv b i r i n c h i p o g ‘o n a s i o s t o n a s i d a g i b o s i m ( Я 0 |) v a suv c h u q u r l i g i
( Я ) q i y m a t l a r i n i q u y i d a g i f o r m u l a l a r b o ‘y i c h a h is o b l a y m i z :
/ / o i -
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