The mechanics of fluid - particle systems: with special reference to agriculture
(2006) The mechanics of fluid - particle systems: with special reference to agriculture , Ross Macmillan.
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Abstract
Following the introductory review in Chapter 1, the interaction of bodies and fluids moving with a relative velocity is considered in Chapter 2. This is illustrated by the drag coefficient - Reynolds number relationship for bodies of various shapes and for some agricultural materials. In Chapter 3 the concepts of terminal and floating velocity are introduced and their application as a basis for the separation of two fractions in a mixture is discussed.
Chapter 4 introduces the important, two - dimensional, general solution to the fluid - particle trajectory problem and explains the basis of the algorithm on which the associated computer program is based. Chapters 5 to 16 detail a number of applications of the program, mainly in agriculture and agricultural engineering and associated technologies. Chapters 9 and 13 are reserved for future use.
| Keywords: | trajectory, fluid, particle, mechanics, drag coefficient, Reynolds number, terminal velocity |
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| Subjects: | Engineering > International Development Technologies Centre |
| ID Code: | 1514 |
| Deposited By: | Sullivan, Shirley (2) |
| Deposited On: | 15 February 2006 |
| Eprint Statistics: | View statistics for this eprint |
| Item Type: | Book |
| Note: | This monograph and the associated computer program are concerned with the prediction of the trajectory of particles moving relative to fluids. The program is quite general and can be used to plot the trajectory of 'any' particle moving relative to 'any' fluid. However it cannot allow for particle spin or analyse three dimensional problems. The monograph, which assumes a 2nd year level of engineering science, is written particularly for professional agricultural engineering courses but may be of interest in the study of equivalent subjects for chemical or other engineers. It could also form the basis for short courses for practising engineers. The analysis is based on elementary fluid mechanics and provides the reader with a review of the basic theory and its application to the prediction of trajectory in one and two dimensions (Section I, Chapters 2 to 4). The latter develops the algorithms on which the associated computer program is based and presents a validation of the program based on published results. The major parts of the monograph illustrate the application of the program to a number of worked examples of interest in agriculture. Section II (Chapters 5 to 8) deals with examples of four distribution problems (ground and aerial based spreading and spraying) while Section III deals with three cleaning processes (winnowing in the wind and in horizontal and vertical wind tunnels). Section IV uses the program to analyse three other problems, viz, rain, fire and mineral sedimentation. It should be emphasized that these are examples of the application of the program and are not intended to be a complete analysis of the particular problem. Readers who are familiar with fluid - particle mechanics may wish to move directly to Chapter 4. Chapters 9 and 13 are reserved for future use. |
