Characteristices methods in tidal estuaries

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Copyright: Daykin, E. N. F.
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Abstract
An analytical study of unsteady open channel flow such as occurs in tidal estuaries produces via the principles of continuity and momentum a pair of hyperbolic partial differential equations. Partial differential equations are introduced because the properties of velocity and depth in the channel are varying with time as well as distance. Although an explicit solution to these equations is not available the method of characteristics can be used to transform the partial differential equation into two pairs of total differential equations which can be solved by a first order finite - difference technique. Numerical solutions can then be obtained on a digital computer. The basic equations of unsteady flow are presented in Chapter 1. of this thesis together with method of characteristics transformation. A computer program for solution of unsteady flow problems in a tidal river with one tributary is described in Chapter 2. The program is written in the Fortran IV compiler language. A study of tidal conditions in the Richmond River in northern Mew South V/ales was carried out. The results of the study are compared in Chapter 3, with field measurements taken by the N. S. W. Department of Public Works.
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Daykin, E. N. F.
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Publication Year
1971
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Thesis
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Masters Thesis
UNSW Faculty
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download Daykin-014913763.pdf 22.53 MB Adobe Portable Document Format
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