Which word do you not understand?
incompressible - cannot be compressed
viscous - resistant to flow, "thick"
fluid - substance that flows (both gases and liquids are fluids, but gases are usually compressible; liquids generally aren't)
incompressible fluid laminar viscous flow non reactive fluid single phase
compression in fluids changes the volume of fluid whereas the volume isinversely proportional to the the kinetic energy of flowing fluid. viscous nature of fluid is due to cohesion and adhesion forces of the fluid hence these forces regulates the speed of flowing fluid on the walls of pipe and within the fluid molecules.
it mean that it can not be compressed
Nothing is inincompressible For practical propose, it defined water as incompressible since its' compressibility is very low. To compressed water down to 99/100 of original volume you would need a pressure of 217 Bar approximately. Any normal pressure vessel would burst at such pressure. It is then considered water as incompressible.
For incompressible fluids it is its density and the height of the fluid over the point where the pressure needs to be determined
Ideal Fluid:An incompressible fluid that has no internal viscosity.
incompressible fluid laminar viscous flow non reactive fluid single phase
incompressible fluid laminar viscous flow non reactive fluid single phase
Trudi A. Shortis has written: 'On the nonlinear stability of the unsteady, viscous flow of an incompressible fluid in a curved pipe' -- subject(s): Viscous flow, Nonlinear systems, Unsteady flow, Stability tests, Pipes (Tubes), Incompressible fluids, Flow stability
The density of a compressible fluid changes with pressure, while the density of an incompressible fluid is not affected by pressure (assuming isothermal conditions).
compression in fluids changes the volume of fluid whereas the volume isinversely proportional to the the kinetic energy of flowing fluid. viscous nature of fluid is due to cohesion and adhesion forces of the fluid hence these forces regulates the speed of flowing fluid on the walls of pipe and within the fluid molecules.
viscous
Have a look here http:/dictionary.reference.com/browse/viscousViscosity it how thick or thin a fluid is.The thicker a fluid is the more viscous. If the fluid is less viscous it is thinner. A fluid is liquid AND gas. If a fluid is hotter is gets less viscous but if it is cooler it will be more viscous.
if the density of the fluid changes with respect to pressure is called compressible fluid f the density of the fluid does not changes with respect to pressure is called incompressible fluid
In incompressible fluid density is same because velocity gradient is same on every layer of liquid at any cross section.
because of the mobuile motion of the nolecules
It can't be made compressible, if that's what you mean - unless you turn it into steam.There really is no such thing as an incompressible fluid; but the amount a liquid's volume changes under pressure is so little, that for many practical purposes it can be considered incompressible.