Date of Award
Civil and Environmental Engineering
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The study discussed herein focuses on the local scour created in a cohesionless sand bed by a plane turbulent wall jet with varying levels of submergence from 1 to 20. From the observations of 40 experiments the study reveals that the formation of unstable scour processes, which can be short and long-term in nature, depends on the water depth available above the mound apex for a given initial jet velocity. In case of stable scour process, the growth of the scour hole dimensions follows a linear relation with the logarithm of time beyond which the rate of change in the scour hole dimensions slows to near zero. It is observed that the effect of the tailwater depth on the development of characteristic lengths in stable scour processes become less beyond the submergence ratio of 12, whereas up to the submergence ratio of 20, which the growth of maximum mound heights are found to be influenced by the tailwater depths. (Abstract shortened by UMI.)Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2003 .A37. Source: Masters Abstracts International, Volume: 42-03, page: 0993. Adviser: Kerry Mazurek. Thesis (M.A.Sc.)--University of Windsor (Canada), 2003.
Ahsan, Md Rajib., "Submergence effects on local scour." (2003). Electronic Theses and Dissertations. 3663.