if the diameter of the hose is decreased, and friction remains negligible, is cavitation more or less likely in the hose?

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21-11-2022
Physics

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if the diameter of the hose is decreased, and friction remains negligible, is cavitation more or less likely in the hose?

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NomulaHarsh NomulaHarsh · Answer 1 · 2022-11-24T22:25:42-05:00

If the diameter of house decrease fiction remain neglible then these will be no effect on the chance of cavitation because it does not depend upon the diameter.

What is friction?

When two bodies are in contact with each other, friction, a type of relative force, acts as a resistance. In other words, a force opposes the relative motion of two bodies when they come into contact with one another.

What is diameter?

The line through a circle's center with two extremes on its circumference is said to have a diameter. The term "semi-circle" refers to the division of a circle into two equal parts by its diameter. A circle's center is where its diameter meets.

Horse length= 39ft

diameter= 2.5¹¹

Patm= 11 psi

Area of hose

A= π/4*(2.5/12)²

A=0.03408ft²

A= velocity and flow rate

apply the Bernoulli equation .a and b

Pa/γ+Va²/2g+Zₐ=Pb/γ+Vb²/2g+Zb

Pa=Pb= Patm, Zₐ=0 Vₐ= 0

Zv= -14ft

0+0+0= 0+Vb²/2g-14

Vb= [tex]\sqrt{14*2g}[/tex]= [tex]\sqrt{14*2*32.17}[/tex]

Vb= 30.01 ft/s

flow rate Q=AV =0.03408*30.01

Q= 1.023 ft\s

b, Due to neglecting the friction the velocity of flow is more so that calculated discharge is over estimated.

c, negative pressure is occur at point C(Pc)

Pc is below the atmosphere pressure positive is at bottom of tank

d, vapour pressure of water at 100F Pv =0.615psi

apply energy equation between point A and C

PA\Yw + Za + Va²/2g = Pc/γ + Zc + Vc²/2g

11\Yw +0+0 = Pc\γ + H +(30.01)²/2*32.17 (Vb=Va)

for no cavitation Pc > Pv =0.615psi

11/γ -0.615/γw =H+13.98

10.385*144/62.4 = H+13.98

H< 9.98 ft

e. if the diameter of house decrease fiction remain neglible then these will be no effect on the chance of cavitation because it does not depend upon the diameter.

Therefore, if the diameter of house decrease fiction remain neglible then these will be no effect on the chance of cavitation because it does not depend upon the diameter.

Learn more about friction from the given link.

https://brainly.com/question/24338873

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