33But whatever be the flow.. if fluid is ideal... mass conservation can be applied... and although bernaulli's theorem can't be applied in non streamlined flow.. but then also pressure decreases( i think)
STATEMENT:for an ideal fluid flowing thru a horizontal pipe of non uniform cross section,the pressure decreases with decrease in cross section
i found this statement in an assertion reason qn and it is given that it is true,can anyone explain how?
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8 Answers
33A1v1=A2v2
if area decreases v increases.. and by Bernaul'is theorem.. if v increase P decreases
33
1full qn
STATEMENT 1:for an ideal fluid flowing thru a horizontal pipe of non uniform cross section,the pressure decreases with decrease in cross section
STATEMENT 2:Speed decreases with increase in cross section
106it is true.....
See. P1 + (1/2)Ï(v1)2 = P2 + (1/2)Ï(v2)2 ...... (i)
As, fluid is ideal.... hence
A1v1 = A2v2 ...... (ii)
As, in statement 1, pressure decreases, hence speed will increase.......(from eqn (i))
Hence area of cross section should decrease (.....from equation (ii))
Hope u cud understand.