汪志明版流体力学chap1英文版ppt.ppt

Fluid Mechanics
Content
Theory
Fluid property, static mechanics, kinematics, fundamental equations, laminar and turbulent flow of viscous fluid, flow of ideal fluid, one-dimensional flow, non-Newtonian fluid.
Experiment
Static pressure experiment, momentum equation experiment, energy equation experiment and Reynolds experiment etc.
Composition of Score
Exercise ,attitude and attending class : 15%
Experiment : 15%
Final examination : 70%
Chapter 1 Fluid Property
Concept
Fluid is the material which flow after applying shearing force upon it.
Fluid mechanics concern how fluids behave at rest or in motion.
Chapter 1 Fluid Property
Fluid Classification
pressible Viscous Newtonian
Liquid pressible Ideal Non-Newtonian

Steady Rotational One-dimensional
Unsteady Irrotational Two-dimensional, etc.
Chapter 1 Fluid Property
Control Volume, System, Status Variable
Equation of Ideal Gas:
where is pressure, is gas constant,

is temperature, is density.
Chapter 1 Fluid Property
Compression Coefficient with constant temperature
and , where is modulus elasticity .
Expansion Coefficient with constant pressure
Chapter 1 Fluid Property
Internal Energy and Enthalpy
internal energy :
enthalpy:

where is specific heat in constant volume ; is specific heat at
constant pressure.
and , , is ratio of specific.
Chapter 1 Fluid Property
Coefficient of Thermal Conductivity
where is internal energy flow rate across unit area;
is the gradient of temperature.
Chapter 1 Fluid Property
Dynamic Viscosity
where is shearing force on unit area;
is velocity gradient.
And kinematic viscosity is .