3.1 Introduction

Ø Fluid Mechanics is the branch of science that studies the dynamic properties (e.g. motion) of fluids

Ø The motion of fluids can be characterized by a continuum description (differential eqns.)

Ø Fluid movement transfers mass, momentum and energy in the flow.

Ø We are studying fluid mechanics because fluid are an important part of many problems that a civil engineering considers.

1.     Water resource engineering ( water deliver to consumer  and disposal after use)

2.     Water power engineering ( water use to generate electirc power,flood control , drainage)

3.     Structural engineering (wind water creates force on structure)

•      So we need to find a way to investigate the motion and nature phenomena of fluid

•      Use mathematic to model the fluid

•      Most fundamental of Approximation is assumption of continuum

•      Let fluid and flow properties such as mass density, pressure,  velocity

•      Possible to integration and differentiation these function

•      Application of equation and theory~~should have Good agreement between theory and experiment 






Next type of flow http://fluidbloggroup3.blogspot.com/2014/05/fluid-31-33-type-of-flow.html