59 resultados para Oscillatory bath
em University of Michigan
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Title vignette.
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Mode of access: Internet.
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"February 1977."
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Includes abstract.
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Includes index.
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Mode of access: Internet.
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Bibliography: p. 27-28.
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"Supported in part by the Department of Energy under contract ENERGY/EY-76-S-02-2383, and submitted in partial fulfillment of the requirements of the Graduate College for the degree of doctor of philosophy."
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"Presented at the Differential Equation Workshop, Center for Interdisciplinary Research (Zif), University of Bielefeld, West Germany, April 21, 1980."
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"June 1969."
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The development of sand ripples in an oscillatory-flow water tunnel was observed in 104 laboratory experiments approximating conditions at the seabed under steady progressive surface waves. The period, T, and amplitude, a, of the water motion were varied over wide ranges. Three quartz sands were used, with mean grain diameters, D = 0.55, 0.21, and 0.18 millimeter. In 24 experiments, with the bed initially leveled, T was reduced until ripples appeared, and their development to final equilibrium form was observed without further change in T. The remaining 80 experiments investigated the response of previously established bed forms to changes in T or a or both. The ripple length, lambda, and height, eta, were measured from photos, except when bed forms were three dimensional.
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At head of title: Office of Naval Research. Contract N6 onr 243. Task order IV. Technical report no. 2.
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MTSD 20.
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Mode of access: Internet.