Pressure and flow:Fluid types

Fluid types

Fluids may be classified as follows:

• Ideal fluid

• Real fluid

• Newtonian fluid

• Non-Newtonian fluid.

Ideal fluid

An ideal fluid is one, which is incompressible and has no viscosity. Such a fluid is only imaginary, as all existing fluids possess some viscosity.

Real fluid

Simply speaking, a fluid which possesses viscosity is known as a real fluid. All fluids, in actual practice are real fluids.

Newtonian fluid

During the course of our discussion on viscosity, we have seen that shear stress is proportional to the velocity gradient i.e. ra dv/dy. A real fluid in which the shear stress is proportional to the velocity gradient is known as a Newtonian fluid.

Non-Newtonian fluid

A real fluid in which the shear stress is not proportional to the velocity gradient is known as a non-Newtonian fluid.

Related posts:

Pumping system hydraulic characteristics:System characteristics
Applications on pneumatic:Compressed air in marine applications.
Introduction to pneumatic conveying and the guide:Free air velocity,Minimum conveying air velocity a...
Fine material:Procedure and Operating point
VALVES:fLOW CONTROL VALVES
ROUBLESHOOTING HYDRAULIC SYSTEMS:ISOLATING PROBLEMS IN A HYDRAULIC CIRCUIT
Hydraulic accessories:Hydraulic accessories.
Maintenance and troubleshooting:Prevention of premature hydraulic component failure
Hydraulic pumps and pressure regulation:Pressure regulation.
Fundamental Principles:gas laws
PROPERTIES OF PURE SUBSTANCES:PURE SUBSTANCE
POWER AND REFRIGER A TION CYCLES:THE BRAYTON CYCLE WITH REGENERATION
POWER AND REFRIGER A TION CYCLES:THE CARNOT VAPOR CYCLE
RANKINE CYCLE: THE IDEAL CYCLE FOR VAPOR POWER CYCLES
RADIATION HEAT TRANSFER: DIFFUSE, GRAY SURFACES

Leave a comment

Your email address will not be published. Required fields are marked *