# Fluid Mechanics and Fluid Machines by SK Som and G Biswas: A Summary and Analysis of their Book

## Fluid Mechanics by SK Som and G Biswas PDF Download

Fluid mechanics is one of the fundamental branches of physics that deals with the behavior of fluids (liquids, gases, and plasmas) at rest or in motion. It is a fascinating and challenging subject that has many applications in engineering and science, such as aerodynamics, hydraulics, meteorology, oceanography, biomedicine, and more. In this article, we will introduce you to the field of fluid mechanics, its basic concepts and principles, its applications and examples, and its prominent authors: SK Som and G Biswas. We will also show you how to download their book Introduction to Fluid Mechanics and Fluid Machines for free in PDF format.

## fluid mechanics by sk som and g biswas pdf download

## What is fluid mechanics and why is it important?

Fluid mechanics is the study of how fluids behave under various conditions, such as pressure, temperature, velocity, density, viscosity, surface tension, etc. Fluids are substances that can flow and change their shape according to the forces acting on them. They can be classified into three types: liquids, gases, and plasmas. Liquids have a definite volume but no definite shape; gases have no definite volume or shape; plasmas are ionized gases that can conduct electricity.

### The basic concepts and principles of fluid mechanics

Some of the basic concepts and principles of fluid mechanics are:

Continuum assumption: This is the assumption that fluids are continuous media that can be described by macroscopic properties such as density, pressure, temperature, etc., without considering their molecular structure.

Conservation laws: These are the laws that state that certain quantities such as mass, momentum, energy, etc., are conserved (remain constant) or balanced (equal to zero) in a fluid system or process.

Fluid statics: This is the branch of fluid mechanics that deals with fluids at rest or in equilibrium. It involves concepts such as hydrostatic pressure, buoyancy force, Pascal's principle, Archimedes' principle, etc.

Fluid dynamics: This is the branch of fluid mechanics that deals with fluids in motion or out of equilibrium. It involves concepts such as streamlines, velocity field, pressure field, Bernoulli's equation, continuity equation, Euler's equation, Navier-Stokes equation, Reynolds number, laminar flow, turbulent flow, boundary layer, drag force, lift force, etc.

Fluid machines: These are devices that use fluids to perform work or transfer energy. They can be classified into two types: turbines (which convert fluid energy into mechanical energy) and pumps (which convert mechanical energy into fluid energy).

### The applications and examples of fluid mechanics in engineering and science

Fluid mechanics has many applications in engineering and science, such as:

Aerodynamics: This is the study of how air flows around objects such as airplanes, cars, rockets, etc., and how it affects their performance and design.

Hydraulics: This is the study of how liquids flow through pipes, channels, valves, pumps, turbines, etc., and how they can be used to transmit power or control systems.

Meteorology: This is the study of how atmospheric phenomena such as winds, clouds, rain, storms, etc., are influenced by fluid dynamics.

Oceanography: This is the study of how ocean currents, waves, tides, etc., are governed by fluid mechanics.

Biomedicine: This is the study of how fluids interact with biological systems such as blood circulation, respiration, digestion, etc.

## Who are SK Som and G Biswas and what are their contributions to fluid mechanics?

SK Som and G Biswas are two eminent professors of mechanical engineering at Indian Institutes of Technology (IITs), who have made significant contributions to the field of fluid mechanics through their research, teaching, and publications. They are also the authors of one of the most popular books on fluid mechanics: Introduction to Fluid Mechanics and Fluid Machines.

### SK Som: Professor of mechanical engineering at IIT Kharagpur

#### His research interests and publications

SK Som's research interests include computational fluid dynamics (CFD), turbulence modeling, heat transfer, multiphase flow, combustion, etc. He has published more than 200 papers in reputed journals and conferences and has supervised more than 30 PhD students. He has also received several awards and honors for his research work, such as Fellowships of Indian National Academy of Engineering (INAE), Indian National Science Academy (INSA), and National Academy of Sciences (NASI), Shanti Swarup Bhatnagar Prize in Engineering Sciences, Jawaharlal Nehru Fellowship, etc.

#### His teaching experience and awards

SK Som has been teaching fluid mechanics and related courses at IIT Kharagpur since 1977. He has also taught at other institutions such as University of California Berkeley, Stanford University, University of Tokyo, etc., as a visiting professor or lecturer. He has received several awards and recognitions for his teaching excellence, such as Excellence in Teaching Award from IIT Kharagpur, Best Teacher Award from Indian Society for Technical Education (ISTE), etc. He has also authored several books and lecture notes on fluid mechanics and related topics.

### G Biswas: Professor of mechanical engineering at IIT Kanpur

#### His research interests and publications

G Biswas's research interests include experimental fluid mechanics, heat transfer, multiphase flow, microfluidics, etc. He has published more than 250 papers in reputed journals and conferences and has supervised more than 40 PhD students. He has also received several awards and honors for his research work, such as Fellowships of Indian National Academy of Engineering (INAE), Indian National Science Academy (INSA), and National Academy of Sciences (NASI), Shanti Swarup Bhatnagar Prize in Engineering Sciences, J.C. Bose Fellowship, etc.

#### His teaching experience and awards

G Biswas has been teaching fluid mechanics and related courses at IIT Kanpur since 1985. He has also taught at other institutions such as University of California Berkeley, Stanford University, University of Tokyo, etc., as a visiting professor or lecturer. He has received several awards and recognitions for his teaching excellence, such as Excellence in Teaching Award from IIT Kanpur, Best Teacher Award from Indian Society for Technical Education (ISTE), etc. He has also co-authored several books and lecture notes on fluid mechanics and related topics.

## What is the book Introduction to Fluid Mechanics and Fluid Machines by SK Som and G Biswas?

Introduction to Fluid Mechanics and Fluid Machines is a comprehensive textbook on fluid mechanics that covers both the theoretical and practical aspects of the subject. It is written by SK Som and G Biswas, who have extensive experience in teaching and research in fluid mechanics. The book is intended for undergraduate and graduate students of mechanical engineering and other related disciplines.

### The overview and features of the book

The book provides a well-balanced coverage of physical concepts, mathematical operations, and practical demonstrations within the scope of fluid mechanics. It is divided into three parts: Part I deals with fluid statics and kinematics; Part II deals with fluid dynamics; Part III deals with fluid machines. Some of the features of the book are:

Clear and concise explanations: The book explains the concepts and principles of fluid mechanics in a clear and concise manner, with ample examples and illustrations.

Rigorous and logical derivations: The book derives the equations and formulas of fluid mechanics in a rigorous and logical manner, with proper assumptions and steps.

Numerous solved problems: The book provides numerous solved problems at the end of each chapter, covering various types and levels of difficulty.

Review questions and exercises: The book provides review questions and exercises at the end of each chapter, to test the understanding and application of the concepts learned.

Appendices: The book provides appendices that contain useful information such as physical properties of fluids, conversion factors, mathematical tables, etc.

### The contents and structure of the book

The book consists of 18 chapters that cover the following topics:

Chapter

Title

1

Introduction

2

Fluid Statics

3

Kinematics of Fluid Motion

4

Fundamental Equations of Fluid Flow

5

Inviscid Incompressible Flow

6

Inviscid Compressible Flow

7

Laminar Flow Through Pipes And Ducts

8

Turbulent Flow Through Pipes And Ducts