INTRODUCTION TO FLUID MECHANICS

Hydraulics Fundamentals by Caterpillar
September 30, 2018
INTRODUCTION TO MECHANICAL ENGINEERING PARTS 1 & 2
October 1, 2018

INTRODUCTION TO FLUID MECHANICS

INTRODUCTION  TO FLUID  MECHANICS

Book Details 

Pages : 1057
Size :  20 MB

Book Description

This book is intended primarily for use in a one-quarter or one-semester introductory fluid mechanics course.
Our goal is to provide both a balanced introduction to all the tools used for solving fluid mechanics problems
today and a foundation for further study of this important and exciting field. By learning about analytical, em-
pirical (existing experimental data and accepted engineering practice), experimental (new experimental data,
which will need to be obtained), and computational tools, students learn that an engineering problem can be
approached in many different ways and on several different levels. This distinction of approach is especially
important in fluid mechanics, where all these tools are used extensively. Although the traditional methodology
of engineering fluid mechanics is thoroughly covered, this text also includes elements of differential analysis
presented at a level appropriate for the target student audience. We also make use of outputs from commer-
cially available computational fluid dynamics codes to help illustrate the phenomena of interest. It is not ex-
pected that students will perform any computational fluid mechanics simulations. However, with computa-
tional solutions becoming routine, economical, and accessible to engineers with bachelor’s degrees, it is
important that students be familiar with the use of this type of information. Therefore, computa-
tionally produced figures are used in the text for expository purposes. Throughout the text, CFD
icons indicate when the subject matter directly, or indirectly, relates to computational methods.
There are also a large number of figures, photographs, and solved problems to give students an understanding
of the many exciting problems in fluid mechanics and the tools used to solve them. The visual approach to
understanding fluid mechanics is
highlighted with the use of visual
icons that point students to resources
such as websites, books, and especially, the excellent CD Multi-Media Fluid Mechanics.* A
third icon, called FE, is used to note material that is covered in the Fundamentals of Engineering
exam.
We have organized the text in three parts to give to each instructor the flexibility needed to meet the needs
of his or her students and course(s).
Part 1, Fundamentals, contains the first nine chapters and covers the traditional body of introductory ma-
terial. Our emphasis here is on developing an understanding of fundamental ideas. The judicious use of soft-
ware packages to perform routine mathematical and graphical operations is intended to allow the student to
concentrate on ideas rather than mathematics. Here, and elsewhere in the text, we employ a visual presenta-
tion of results to enhance student learning and to encourage students to do the same in their own problem solv-
ing. An important feature of Part 1 is the introduction to empirical methods in Chapter 3, rather than covering
this much later, as is the case in other texts. Chapter 3 includes simple but effective case studies on pipe flow,
drag on spheres and cylinders, lift and drag on airfoils, and other topics. The student is thus empowered to
solve important and interesting fluid mechanics problems in these areas without being forced to wait until the
end of the course for the “good stuff.” The early exposure to these topics in the lecture also serves to broach
these topics early in the traditional laboratory portion of an introductory course, which also helps to build stu-
dent interest. As Part 1 unfolds, the student learns more and more about the source of the empirical rules pre-
sented in the case studies. The text revisits the case studies not only in Part 1 but also in Parts 2 and 3 of the
text to show the student how advanced methods contribute to a deeper understanding of a flow than can be
gained from empirical methods alone.
Part 2, Differential Analysis of Flow, consists of three chapters and represents the core of our added
emphasis on differential analysis and a visual presentation of fluid dynamics. It is important to note that we
have written the chapters in Part 2 in a modular fashion. That is, instructors can select to cover as much or as
little of this material as they see fit without losing the ability to continue on into the third part of the text on
applications. This section begins with Chapter 10, Elements of Flow Visualization and Flow Structure, where
we introduce classic kinematic concepts from both the Lagrangian and Eulerian descriptions. This chapter
demonstrates the importance of flow visualization in the context of modern experimental approaches to flow
measurement, as well as in flow simulation. An additional feature of our coverage in this and subsequent chap-
ters is that the student begins to appreciate the wealth of information available from skillful postprocessing of
CFD simulations. This chapter discusses flow structure in preparation for a discussion of the governing equa-
tions of fluid dynamics. Chapter 12 allows instructors to expose their students to one or more of the classic
exact solutions to the Navier–Stokes equations.

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