Dynamics of Fluid Flow - Introduction

• The science that considers the forces causing flow also is known as dynamics of fluids/kinetics of fluids. • The fundamental transport phenomena associated with the motion of fluid are: 1. mass transport 2. heat transport 3. momentum transport. Mass Transport • All fluid motions satisfy the principles of conservation of matter. • A homogeneous fluid is the one which exists throughout the region of interest as a single species. • Non-homogeneous fluids are characterized by variation in the amount of one substance relative to another from point to point. A canal carrying sediment laden water is an example of non- homogeneous, two-phase flow. In case of non-homogeneous fluid, the principle of conservation of matter must be satisfied for each component. Heat Transport • It deals with transport of heat by fluid. • In this principle of conservation of energy (known as the first law of thermodynamics) is the basic principle. Momentum Transport Momentum transport phenomena are of interest in...