Fluid Dynamics
Rholish
The measure of frictional effect between different layers of flowing fluid is called viscosity. The measurement of rate flow of fluid layers flowing one on another .which fluid required very small interval of time to flowing then whose viscosity less and the other fluid is required more time to flowing then its viscosity is greater then to other fluids .
Definition:
The measure of frictional effect between different layers of flowing fluid is called viscosity.
Explanation:
The measurement of rate flow of fluid layers flowing one on another .which fluid required very small interval of time to flowing then whose viscosity less and the other fluid is required more time to flowing then its viscosity is greater then to other fluids .
Definition:
The retarding force which experienced by an object passes through the fluid is called drag force
Factors of drag force:
1. The viscosity of the fluid
2. the speed of the body
3. the size of body
Definition:
The maximum velocity of an object when net force acting on it becomes zero is called terminal velocity.
Explanation:
When a fog drop let falling downward the drag force acting on it upward and its weight is acting downward hence:
Drag force = net force +weight
And
Net force=drag force – weight
Turbulent flow and laminar flow :
The flow is said to be laminar flow if the particle of fluid passes through the certain point’s moves along exact the same path as followed by the particle which pass through that points earlier
And the flow is said to be turbulent flow which is unsteady, irregular is called turbulent flow.
The product of cross sectional area of the pipe and the speed of fluid at any point along a pipe is remains constant .the constant is equal to the volume flow per second of the fluid or simply flow
AV= constant
A is the cross section area of the pipe and V is the velocity of the fluid at any point.