Types Of Fluid Flow

 1) Steady & Unsteady Flows. 
2) Uniform & Non-uniform Flows. 
3) Laminar & Turbulent Flows. 
4) Compressible & In compressible Flows. 
5) Rotational & Ir-rotational Flows. 
6) One , Two & Three Dimensional Flows.

Steady & Unsteady Flows:- 

Steady Flows:- In which the fluid Characteristics Like velocity, pressure, density , etc. At a Point do not change with time.

Unsteady Flow:- In which the fluid velocity , pressure or density at a point changes with respect to time.

Uniform & Non-uniform Flow :- 

Uniform Flow:- In which the velocity at given time does not change with respect to space ( length of direction of the flow ).

Non-Uniform Flow:- In which the velocity at any time changes with respect to space. Changing in space

Laminar & Turbulent flows:- 

Laminar Flow:- in which the fluid particles move along well defined paths or stream line. Fig. Laminar Flow

Turbulent Flow:- fluid moves in very irregular paths or zig – zag Way. velocity at a point fluctuates.

Compressible & In-compressible Flows:- 

Compressible Flows:- In which the density of the fluid changes from point to point. The density is not constant for the fluid. 

In-compressible Flows:- In which the density of fluid changes from point to point. the density is constant for the fluid.

Rotational & Ir-rotational Flows:- 

Rotational Flow :-In which the fluid particles while flowing along stream lines, Also rotate about their own axis. 

Ir-rotational Flow:- In which the fluid particles while flowing along stream lines, do not rotate about their own axis.

One , Two & Three Dimensional Flows:-

One Dimensional Flow:-  In which the flow parameter such as velocity is a function of time and one space co-ordinate only.

Two Dimensional Flow:- In which the velocity is a function of time and two rectangular space co-ordinates.

Three Dimensional Flow:- In which the velocity is the function of time and Three mutually perpendicular directions.