This equation places a restriction on the body forces. Mechanical equilibrium can exist only if…

The entropy is a thermodynamic variable of state; an extensive quantity. It cannot be experienced…

Any material system is characterized by its energy content. Energy occupies a position of distinction…

Let Ek denote the kinetic energy of a material volume: Although the kinetic energy is an extensive…

The principle of conservation of angular momentum belongs to the axioms of mechanics. In spite…

Newton’s second law of motion is perhaps the most important statement in the field of…

The material derivative of a volume integral over a volume of flowing fluid

Important relationships can be obtained for the fluid flow by examining some of the obvious…

In order to illustrate this concept, we consider a typical fluid element of certain volume…