THE ARTICLE LIBRARY
All stories.
Ideas and explainers from across SenseCentral.
Basics 2 min read
The perfect fluid
The fundamental property which distinguishes a fluid from other continuous media is that it cannot be in equilibrium in the…
Basics 1 min read
Mechanical equilibrium of fluids
This equation places a restriction on the body forces. Mechanical equilibrium can exist only if the body force field satisfies…
Basics 1 min read
The balance of entropy
The entropy is a thermodynamic variable of state; an extensive quantity. It cannot be experienced directly; as a derived variable…
Basics 1 min read
The principle of conservation of energy
Any material system is characterized by its energy content. Energy occupies a position of distinction amongst the other extensive variables.…
Basics 1 min read
The balance of kinetic energy
Let Ek denote the kinetic energy of a material volume: Although the kinetic energy is an extensive variable it is not a…
Basics 2 min read
The balance of angular momentum
The principle of conservation of angular momentum belongs to the axioms of mechanics. In spite of its general validity it…
Basics 3 min read
The balance of momentum
Newton’s second law of motion is perhaps the most important statement in the field of dynamics. As is well-known this states that…
Basics 1 min read
The transport theorem
The material derivative of a volume integral over a volume of flowing fluid
