The principle of conservation of energy
Any material system is characterized by its energy content. Energy occupies a…
The balance of kinetic energy
Let Ek denote the kinetic energy of a material volume: Although the kinetic energy…
The balance of angular momentum
The principle of conservation of angular momentum belongs to the axioms of…
Relationships between the acceleration- and the vorticity fields
Important relationships can be obtained for the fluid flow by examining some…
Rotational motion, vorticity field
In order to illustrate this concept, we consider a typical fluid element…
Motion of an infinitesimal fluid particle
Imagine an infinitesimal rectangular fluid particle of fixed identity in a flowing…
