Basic Concepts of Fluid Statics
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| Basic Concepts of Fluid Statics |
Fluid Statics
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Definition of Fluid Statics.
or
What is Fluid Statics?
or
Define Fluid Statics.
or
Describe Fluid Statics.
- Fluid Statics is the branch of Fluid Mechanics that studies the fluids at rest and the pressure in a fluid or exerted by a fluid on an immersed body.
- It is also called Hydrostatics.
The Pressure of a Fluid
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Definition of the Pressure of a Fluid.
or
What is the Pressure of a Fluid?
or
Describe the Pressure of a Fluid.
or
Define the Pressure of a Fluid.
- When a fluid is contained in a vessel, it exerts a force on the sides and bottom of the vessel due to its weight.
- The direction of pressure is always at a right angle to the surface.
- It is generally denoted by P.
- Its SI unit is Newton (N).
Intensity of Pressure
or
Definition of Intensity of Pressure.
or
Define the Intensity of Pressure.
or
What is the Intensity of Pressure?
or
Describe the Intensity of Pressure.
- The pressure exerted by the liquid per unit area is called the Intensity of Pressure.
- It is also known as Unit pressure or Specific pressure.
- It is denoted by p.
- p= P/A
- where p = Intensity of Pressure
- P = Pressure acting on a surface
- A = area of the surface on which the pressure is acting
- The SI unit of Intensity of Pressure is N/m2.
- Generally, the Intensity of Pressure is referred to as Pressure.
Pressure Head of a Liquid
or
Derive the expression for Pressure Head of a Liquid.
or
What is the Pressure Head of a Liquid?
or
Derive the formula for the Pressure Head of a Liquid.
- Suppose a tank of base area A filled with liquid up to height h.
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| Pressure Head of a Liquid |
- The total pressure of the liquid on the base of the tank (P) is:-
- P = Specific weight of liquid * Volume of liquid
- P = wAh
- The intensity of pressure (p) is:-
- p = P/A
- p = wAh/A
- p = wh
- Since, p = wh. This shows that the intensity of pressure varies with the depth of liquid since the specific weight of the liquid is constant.
- When the pressure is expressed in terms of the height of the liquid, then, that height of the liquid is referred to as the pressure head.
- Pressure head (h) = p/w
- It is generally measured in mm or cm or m of the liquid column.
*Self Typed
*Source- Books, Internet, Self-Analysis