Chapter14 - Chapter 14: Fluid Mechanics 1. Density Fluid: A...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 14: Fluid Mechanics
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
1. Density Fluid: A substance that can flow and conform to the shape of a container. Liquids and gases are fluids. Density : mass per unit volume, unit: kg/m 3 For water at 4 ° C, ρ =1000 kg/m 3 =1 g/cm 3 Originally, g/cm 3 was used. The reason for water’s density being 1. For mercury (Hg), 13.6 × 10 3 kg/m 3 Specific gravity : the ratio of material’s density to the density of water. For mercury, specific gravity is 13.6 M V ρ=
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. Pressure in a Fluid Pressure : the normal force per unit area Unit : Pa (pascal)=N/m 2 Atmospheric pressure 1 atm=1.013 × 10 5 Pa = 1.013 bar =1013 mbar =1013 hPa dF p dA =
Background image of page 4
Pressure and depth The pressure is the same at any two points at the same level in the fluid. 2 1 2 1 ( ) p p g y y ρ - = - - 0 p p gh = +
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Pascal’s Law : Pressure in a confined fluid is transmitted unchanged to all parts of the fluid and to the containing walls. 1 2 1 2 F F p A A = =
Background image of page 6
Mercury barometer 1 atm=760 mmHg=760 Torr Gauge pressure : excessive pressure above the atmospheric pressure gauge pressure = absolute pressure (total pressure) - atmospheric pressure 0 a p gh ρ = +
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3. Buoyancy
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2012 for the course RANDOM 100 taught by Professor Idk during the Fall '08 term at Virginia Tech.

Page1 / 23

Chapter14 - Chapter 14: Fluid Mechanics 1. Density Fluid: A...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online