Type:
Solution Manual
Resource:
Applied Fluid Mechanics
Edition:
6th Edition
Author(s):
Robert L. Mott
CONTENTS CHAPTER ONE THE NATURE OF FLUIDS AND THE STUDY OF FLUID MECHANICS ....................... 1 CHAPTER TWO VISCOSITY OF FLUIDS .................................................................................... 12 CHAPTER THREE PRESSURE MEASUREMENT ............................................................................. 19 CHAPTER FOUR FORCES DUE TO STATIC FLUIDS ..................................................................... 25 CHAPTER FIVE BUOYANCY AND STABILITY............................................................................ 44 CHAPTER SIX FLOW OF FLUIDS............................................................................................ 61 CHAPTER SEVEN GENERAL ENERGY EQUATION ......................................................................... 81 CHAPTER EIGHT REYNOLDS NUMBER, LAMINAR FLOW, AND TURBULENT FLOW AND ENERGY LOSSES DUE TO FRICTION ......................................................... 94 CHAPTER NINE VELOCITY PROFILES FOR CIRCULAR SECTIONS AND FLOW FOR NONCIRCULAR SECTIONS ............................................................ 113 CHAPTER TEN MINOR LOSSES ............................................................................................ 129 CHAPTER ELEVEN SERIES PIPE LINE SYSTEMS........................................................................... 141 CHAPTER TWELVE PARALLEL PIPE LINE SYSTEMS ...................................................................... 187 CHAPTER THIRTEEN PUMP SELECTION AND APPLICATION ............................................................ 213 CHAPTER FOURTEEN OPEN CHANNEL FLOW .................................................................................. 218
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CHAPTER FIFTEEN FLOW MEASUREMENT .................................................................................. 235 CHAPTER SIXTEEN FORCES DUE TO FLUIDS IN MOTION .............................................................. 240 CHAPTER SEVENTEEN DRAG AND LIFT............................................................................................ 251 CHAPTER EIGHTEEN FANS, BLOWERS, COMPRESSORS, AND THE FLOW OF GASES ........................ 260 CHAPTER NINETEEN FLOW OF AIR IN DUCTS ................................................................................ 269 SPREADSHEETS............................................................................................ 273
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APPLIED FLUID MECHANICS Sixth Edition Robert L. Mott Prentice-Hall Publishing Company
Description of Spreadsheets Included on the CD in the Book Introduction This book includes a CD-ROM that contains ten computational aids that are keyed to the book. The files are written as Microsoft Excel spreadsheets using Version 2002 on Windows XP. The ten spreadsheets are all included in one workbook called Series Pipe Systems-Master. The names of each spreadsheet described below are on the tabs at the bottom of the workbook when it is opened. You must choose which is appropriate for a given problem. Most names start with either I, II, or III indicating whether the spreadsheet is for a Class I, Class II, or Class III pipe line system as defined in Chapter 11 of the text. The spreadsheets are designed to facilitate the numerous calculations required to solve the variety of problems in Chapter 11 Series Pipeline Systems. Many of the spreadsheets appear in the text. Others were prepared to produce solutions for the Solutions Manual. The given spreadsheets include data and results from certain figures in the text, from example problems, or in problems from the end of Chapters 8, 11, and 13 containing the analysis and design procedures featured in the programs. The following sections give brief descriptions of each spreadsheet. Many are discussed in the text in more extensive detail. It is expected that you will verify all of the elements of each spreadsheet before using them for solutions to specific problems.
It is recommended that the given spreadsheets be maintained as they initially appear on the CD. To use them for solving other problems, call up the master workbook in Excel and use the "Save as" command to name it something different. That version can then be used for a variety of problems of your own choice. Be careful that you do not modify the contents of critical cells containing complex equations. However, you are encouraged to add additional features to the spreadsheets to enhance their utility. Using the Spreadsheets:
The principles involved in the spreadsheets come from Chapters 6 - 11 and you should study the concepts and the solution techniques for each type of problem before using the given spreadsheets. It is highly recommended that you work sample problems by hand first. Then enter the appropriate data into the spreadsheet to verify the solution. In most spreadsheets, the data that need to be entered are identified by gray-shaded areas and by italic type. Results are typically shown in bold type.
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I Power Sl: The objective of problems of this type is to compute the amount of power required to drive a pump to deliver a given amount of fluid through a given system. Energy losses are considered. All data must be in the listed Sl units. The solution procedure is for a Class I series pipe line system. The following is a summary of the steps you must complete. 1. Enter the problem identification information first. The given data in the spreadsheet are for example Problem 11.1 for the system shown in Figure 11.2. 2. Describe two appropriate reference points for completing the analysis of the general energy equation. 3. Specify the required volume flow rate, Q, in m3/s. 4. Enter the pressures (in kPa), velocities (in m/s), and elevations (in m) at the reference points in the System Data: at the top of the sheet. If the velocity at either reference point is in a pipe, you may use a computed velocity from v = Q/A that is included in the data cells for the two pipes. In such cases, you enter the Excel command "=B20" for the velocity in pipe 1 and "=E20" for the velocity in pipe 2. 5. Enter the fluid properties of specific weight (in kN/m3) and kinematic viscosity (in m2/s). 6. Enter pipe data, including flow diameter D (in m), pipe wall roughness a (in m from Table 8.2), and length L (in m). Other pipe-related data are computed by the spreadsheet. Equation 8-7 is used to compute the friction factor. 7. Enter energy loss coefficients, K, for all loss-producing elements in both pipes. See Chapters 8, 10, and 11 for the proper form for K for each element and for necessary data. The value for K for pipe friction is computed automatically from known data in the "Pipe" section. Specify the number of like elements in the "Qty." column. Enter brief descriptions of each element so your printout is keyed to the given problem and so you can observe the energy loss contribution of each element. Space is given for up to eight different kinds of energy loss elements. Enter zero for the value of the K factor for those not needed. 8. The Results: section at the bottom of the spreadsheet includes the total energy loss h<, the total head on the pump h¿, and the power added to the fluid by the pump P,. If you enter an efficiency for the pump, the power input to the pump P, is computed.
I Power US: Same as Power Sl:, except U.S. Customary units are used. The given solution is for Problem 11.29 for the system shown in Figure 11.26. The first reference point is taken just before the pump inlet. Therefore there are no friction losses or minor losses considered in the suction pipe. The length is given ta be zero and all K factors are zero for Pipe 1. In Pipe 2, pipe friction, the loss in the elbow, and the loss in the nozzle are included.
I Pressure Sl: Most of the layout and data entry for this spreadsheet are the same as those in the first two spreadsheets, I Power Sl, and I Power US. The difference here is that the analysis determines the pressure at one point in the system when the pressure at some other point is known. Class I systems with one or two pipe sizes including minor losses can be analyzed. This spreadsheet uses the known pressure at some starting point and computes the pressure at a downstream point, considering changes in elevation, velocity head, pipe friction and minor losses. The example is the solution of Problem 11.7 for the
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