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Introduction to Fluid Mechanics

Introduction to Fluid Mechanics. Chapter 1 Introduction. Main Topics. Definition of a Fluid Basic Equations Methods of Analysis Dimensions and Units. Definition of a Fluid. When a shear stress is applied: Fluids continuously deform Solids deform or bend. Basic Equations.

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Introduction to Fluid Mechanics

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  1. Introduction to Fluid Mechanics Chapter 1 Introduction

  2. Main Topics • Definition of a Fluid • Basic Equations • Methods of Analysis • Dimensions and Units

  3. Definition of a Fluid When a shear stress is applied: • Fluids continuously deform • Solids deform or bend

  4. Basic Equations We need forms of the following • Conservation of mass • Newton’s second law of motion • The principle of angular momentum • The first law of thermodynamics • The second law of thermodynamics

  5. Methods of Analysis • System(or “Closed System”) • Control Volume(or “Open System”)

  6. Dimensions and Units Systems of Dimensions • [M], [L], [t], and [T] • [F], [L], [t], and [T] • [F],[M], [L], [t], and [T]

  7. Dimensions and Units Systems of Units • MLtT • SI (kg, m, s, K) • FLtT • British Gravitational (lbf, ft, s, oR) • FMLtT • English Engineering (lbf, lbm, ft, s, oR)

  8. Dimensions and Units Systems of Units

  9. Dimensions and Units Preferred Systems of Units • SI (kg, m, s, K) • British Gravitational (lbf, ft, s, oR)

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