Fluid mechanics fundamentals and applications solutions

The total mechanical energy of the moving fluid comprising the gravitational potential energy of elevation, the energy associated with the fluid pressure and the kinetic energy of the fluid motion, remains constant. Consider a pipe with varying diameter and height through which an incompressible fluid is flowing. The relationship between the areas of cross-sections A, the flow speed v, height from the ground y, and pressure p at fluid mechanics fundamentals and applications solutions different points 1 and 2 are given in the figure below. Q 5 Test Your Preparation.

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Fluid mechanics fundamentals and applications solutions

Upload crycry Embed Size px x x x x Limited distribution permitted only to teachers and educators for course preparation. If you are a student using this Manual, you are using it without permission. McGraw-Hill and protected by copyright and other state and federal laws. By opening and using this Manual the user agrees to the following restrictions, and if the recipient does not agree to these restrictions, the Manual should be promptly returned unopened to McGraw-Hill: This Manual is being provided only to authorized professors and instructors for use in preparing for the classes using the affiliated textbook. No other use or distribution of this Manual is permitted. This Manual may not be sold and may not be distributed to or used by any student or other third party. No part of this Manual may be reproduced, displayed or distributed in any form or by any means, electronic or otherwise, without the prior written permission of McGraw-Hill. Introduction, Classification, and System C Solution We are to define internal, external, and open-channel flows. Analysis External flow is the flow of an unbounded fluid over a surface such as a plate, a wire, or a pipe. The flow in a pipe or duct is internal flow if the fluid is completely bounded by solid surfaces. The flow of liquids in a pipe is called open-channel flow if the pipe is partially filled with the liquid and there is a free surface, such as the flow of water in rivers and irrigation ditches. Discussion As we shall see in later chapters, there different approximations are used in the analysis of fluid flows based on their classification.

Course Description:. It is due to the internal frictional force that develops between different layers of fluids as they are forced to move relative to each other. For permission to photocopy or use material electronically from this work, please access www.

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Fluid mechanics fundamentals and applications solutions

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If the fluid is in streamline flow and is in-compressible then we can say that mass of fluid passing through different cross sections are equal. All three constituents of total energy kinetic, potential, and internal need to be considered in an analysis of. Analysis A fluid in direct contact with a solid surface sticks to the surface and there is no slip. Discussion Fluids in motion may have additional normal stresses, but when a fluid is at rest, the only normal stress is the pressure. Cengel, Yunus A. Juan Molinar. Analysis Accuracy refers to the closeness of the measured or calculated value to the true value whereas precision represents the number of significant digits or the closeness of different measurements of the same quantity to each other. Termodinamica- Cengel. A relationship for the torque transmitted by the clutch is to be obtained, and the numerical value of the torque is to be calculated. Mass, Force, and Units C Solution We are to discuss the difference between pound-mass and pound-force.

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For example, on a dry day low relative humidity , the partial pressure of water vapor in the air is less than the vapor pressure of water. In a fluid at rest, the normal stress is called pressure. To avoid cavitation, the pressure anywhere in the system should not be allowed to drop below the vapor or. This leads to the values C1 1 log 1 and C 2 1. The molar mass of helium is 4. Discussion The man feels like he is six times heavier than normal. Which scale would you consider to be more accurate? Assumptions The density of air is constant throughout the room. An open system, or a control volume, is a properly selected region in space. By opening and using this Manual the user agrees to the following restrictions, and if the recipient does not agree to these restrictions, the Manual should be promptly returned unopened to McGraw-Hill: This Manual is being provided only to authorized professors and instructors for use in preparing for the classes using the affiliated textbook. Discussion This acceleration is more than twice the acceleration at which it would fall due to gravity if dropped. A relationship for the torque transmitted by the clutch is to be obtained, and the numerical value of the torque is to be calculated. An open system, or a control volume, is a properly selected region in space. Units are in square brackets.