PHYS1205 Study Guide - Quiz Guide: Lorraine 5P, Flow Velocity

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emeraldmule561

2 Jun 2018

School

University of Newcastle

Department

Physics

Course

PHYS1205

Professor

John Furst

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Static Fluids Summary Sheet

Ideal fluid

• Incompressible

• Laminal – steady flow velocity at given point

is constant

• Non-viscous – no resistance to flow

• Irrotational – paddle heel on’t otate

Hydraulic Lift

A multiplication of force can be achieved by the

application of fluid pressure according to Pascal's

principle, which for the two pistons implies

  – Equation of Continuity

Volume flow rate = V A

Pascal’s Pinciple: states that when there is an increase in pressure at any point in a confined fluid, there

is an equal increase at every other point in the container

Buoyant Force

  

 

Buoyant force is equal to the

weight of the fluid displaced

Density  



When in equilibrium total Force=0

  



Floating in equilibrium



 



p= density kg/m³

Po=Atmosphere Pressure

m=mass

V= Volume

Pressure  



Force perpendicular to the surface

P=Pressure

P0= 1.01 × 105 Pa

1 Pa =1 N/m²

1 ATM = 1.013x 10^5Pa

Benoulli’s Euation

Benoulli’s euation of the conseation of enegy

  

   



 



    

    

W=Weight kg

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Document Summary

Incompressible: laminal steady flow velocity at given point is constant, non-viscous no resistance to flow, irrotational paddle (cid:449)heel (cid:449)on"t (cid:396)otate. A multiplication of force can be achieved by the application of fluid pressure according to pascal"s principle, which for the two pistons implies (cid:1827)(cid:2869)(cid:2869)=(cid:1827)(cid:2870)(cid:2870) equation of continuity. Pascal"s p(cid:396)inciple: states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container. Buoyant force is equal to the weight of the fluid displaced. 1 atm = 1. 013x 10^5pa (cid:1849)(cid:1828)(cid:3033)(cid:3042)(cid:3045)(cid:3030)(cid:3032)= (cid:1868)(cid:3042)(cid:3029)(cid:3037) (cid:1868)(cid:3033)(cid:3039)(cid:3048)(cid:3036)(cid:3031) (cid:1871)(cid:1871)=((cid:1868)(cid:3042)(cid:3029)(cid:3037) (cid:1868)(cid:3033))(cid:1848) (cid:1849) (cid:1849)(cid:3028)(cid:3043)(cid:3043)(cid:3028)(cid:3045)(cid:3032)(cid:3041)(cid:3047)=(cid:1828)(cid:3033)(cid:3042)(cid:3045)(cid:3030)(cid:3032)

Related Questions

A hydraulic has two pistons. Piston 1 has a radius of 0.7 cm andpiston 2 has a radius of 2.5 cm.

a.) Determine the area of piston 1.
___________cm2

b.) Determine the area of piston 2.
____________ cm2

c.) Determine the theoretical mechanical advantage (TMA) of thehydraulic.
___________________

d.) What does Pascal's Principle say?

1.The total amount of volume remains constant.

2.The pressure applied to an enclosed fluid is transmittedundiminished throughout the fluid and to the walls of thecontainer.

3.Fluid tends to flow faster where the pressure is lower.

4.The force per unit area.

5.The amount of fluid displaced by an object is equal to the volumethat has been submerged in the fluid.

6.The buoyant force on an object wholly or partially submerged in afluid is equal to the weight of the fluid it displaces.

e.) A pressure of 130 Pa is applied at piston 1. As a result, howmuch pressure will be exerted at piston 2?
________________Pa

f.) For a hydraulic, why does the actual mechanical advantage (AMA)tend to be less than the TMA?

1.Because of friction between the pistons and the walls of thehydraulic.

2.Because liquid is compressible.

3.Because of air drag.

4.Because it's impossible to deliver electricity at a constant rateto the hydraulic.
.
g.) What can be done to make the AMA closer to the the TMA?

1.Use superconductors.

2.Use a gas instead of a liquid.

3.Use a lubricant.

4.Make it more aerodynamic.
.

PHYS1205 Study Guide - Quiz Guide: Lorraine 5P, Flow Velocity

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