Chapter 11 Fluid Statics Self Reading Assignment Topic

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Chapter 11: Fluid Statics Self Reading Assignment: Topic Title Page No. 11 -1 Introduction

Chapter 11: Fluid Statics Self Reading Assignment: Topic Title Page No. 11 -1 Introduction to Fluid Statics 444 11 -2 Hydrostatic Forces 444 11 -4 Buoyancy Force 453

Introduction to Fluid Statics • Fluid statics deals with problems associated with fluids at

Introduction to Fluid Statics • Fluid statics deals with problems associated with fluids at rest. • The fluid can be either gaseous or liquid. • Fluid statics is generally referred to as hydrostatics when the fluid is a liquid and as aerostatics when the fluid is a gas.

Hydrostatic Forces • On a plane surface, the hydrostatic forces form a system of

Hydrostatic Forces • On a plane surface, the hydrostatic forces form a system of parallel forces, and we often need to determine the magnitude of the force and its point of application, which is called the center of pressure.

Buoyancy Force • Objects made of wood or other light materials float on water.

Buoyancy Force • Objects made of wood or other light materials float on water. These and other observations suggest that a fluid exerts an upward force on a body immersed in it. This force that tends to lift the body is called the buoyant force and is denoted by FB where ρ = density of water (kg/m 3) g = gravity acceleration (m/s 2) V = volume (m 3) • The buoyant force acting on a body is equal to the weight of the liquid displaced by the volume of submerged body. • This is known as Archimedes’ principle and is expressed as • The buoyant force acting on a body immersed in a fluid is equal to the weight of the fluid displaced by the body, and it acts upward through the centroid of the displaced volume.

Buoyancy Force (continue) • A solid body dropped into a fluid will sink, float,

Buoyancy Force (continue) • A solid body dropped into a fluid will sink, float, or remain at rest at any point in the fluid, depending on its density relative to the density of the fluid.

Buoyancy Force (continue)

Buoyancy Force (continue)

Homework Submit during next class on 11 Feb 2019 1) 11 -10 2) 11

Homework Submit during next class on 11 Feb 2019 1) 11 -10 2) 11 -32 3) 11 -33 4) 11 -34 5) 11 -35 Study Smart & Do your homework