ideal fluid

As an ideal liquid is called in physics and hydrostatics and hydrodynamics of the idealized conceptual model of a liquid. Although it is an oversimplification, can be with this model already understand many physical processes and describe mathematically.

Properties

Except for the internal smoothness of the liquid molecules, the properties of ideal fluids are not uniformly defined. This is equivalent to saying that ideal liquids are not viscous. Due to the smoothness, no energy is lost in the ideal liquid mechanically, on the other hand converted into real fluids by frictional forces into heat energy. In addition, an ideal fluid exerts no resistance to changes in shape and can therefore be regarded as ideal liquid as opposed to solid which opposes any change in shape. The following defining characteristics can also apply:

• Incompressibility
• No thermal conductivity
• No surface tension
• Weightlessness

Laws

In ideal fluids is everywhere the same hydrostatic pressure. If applied to an ideal fluid ( in a round closed container ) on a movable piston of area A by a force F a piston pressure, this pressure is p spreads inside and on all sides of simultaneously and uniformly. It is

Due to the fluid at rest, the pressure on each interface exerts an orthogonal force of the area proportional.