Basics

The principle of conservation of mass

The transport theorem

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

Relationships between the acceleration- and the vorticity fields

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

Rotational motion, vorticity field

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

Motion of an infinitesimal fluid particle

Imagine an infinitesimal rectangular fluid particle of fixed identity in a flowing fluid. Its sides dx, dy and dz are…

The acceleration field

The acceleration is the rate of change of the velocity experienced by a moving particle. It can be…

The velocity field

In contrast to the Lagrangian description, the Eulerian treatment does not trace individual particles in the flow. It…

Eulerian and Lagrangian description of fluid motion

Fluid flow is the characteristic form of motion of fluid continua, an intuitive mechanical concept based on direct…

FLOW PROPERTIES OF FLUIDS

The fluid state It is an everyday experience that all matter exists in either the fluid or the…

Heat Exchangers and Pipe-Still Furnaces

HEAT EXCHANGERS Heat exchanger equipment exchanges heat between a hot and a cold fl uid, i.e., cold fl…