Definition Of A Fluid

A fluid is a substance that continuously deforms under shear stress, including liquids, gases, and plasmas.

Newton’s Law Of Viscosity

Newton's Law of Viscosity describes how shear stress in a fluid relates to the velocity gradient, differentiating between Newtonian and non-Newtonian fluids.

Units And Dimensions

This section covers the essential units and dimensions related to fluid mechanics, focusing on key quantities such as density, viscosity, and pressure.

Physical Properties Of Fluids

This section explores the key physical properties of fluids, including density, viscosity, surface tension, and others that influence fluid behaviors.

Control Volume Concept

The Control Volume Concept focuses on a fixed region in space where fluid flows, allowing for the application of conservation laws related to mass, momentum, and energy.

Two Approaches

This section discusses two primary approaches to fluid analysis: the System (Lagrangian) and Control Volume (Eulerian) methods.

Continuity Equation

The Continuity Equation encapsulates the principle of mass conservation in fluid flow, crucial for understanding fluid dynamics.

Momentum Equation

The Momentum Equation relates the forces acting on a fluid to its motion through a control volume, based on Newton's second law.

Incompressible Flow

Incompressible flow refers to situations where fluid density remains constant, commonly found in liquid and low-speed gas flows.

Bernoulli’s Equation

Bernoulli's Equation describes the relationship between pressure, velocity, and elevation in a fluid flow.

Applications Of Bernoulli’s Equation

This section discusses the various applications of Bernoulli’s equation in fluid dynamics, highlighting its importance in flow measurement and machinery analysis.