Introduction to Fluid Flow

The Fluid flow is a significant part of most industrial processes; particularly those including the transfer of heat. Frequently, whenever it is preferred to eliminate heat from the point at which it is produced, some kind of fluid is included in the heat transfer procedure. Illustrations of this are the cooling water circulated via a gasoline or diesel engine, the air flow pass the windings of a motor, and the flow of water via the core of a nuclear reactor. The fluid flow systems are also generally used to give lubrication.

Fluid flow in the nuclear field can be complicated and is not forever subject to precise mathematical analysis. Not like solids, the particles of fluids move via piping and components at dissimilar velocities and are frequently subjected to various accelerations.

Even although a detailed study of fluid flow can be tremendously hard, the basic ideas included in fluid flow problems are pretty straightforward. These fundamental ideas can be exerted in resolving fluid flow troubles via the use of simplifying suppositions and average values, where suitable. Even although this kind of analysis would not be enough in the engineering design of systems, it is very helpful in understanding the operation of systems and expecting the estimated response of fluid systems to changes in the operating parameters.

The fundamental principles of fluid flow involve three ideas or principles; the first two of which the student has been exposed. The first is the standard of momentum (i.e., leading to equations of fluid forces) that was covered in the Classical Physics. The second idea is the conservation of energy (i.e., leading to the First Law of Thermodynamics) that was studied in thermodynamics. The third is the conservation of mass (i.e., leading to the continuity equation).