Effects of initial conditions on Rayleigh-Taylor mixing development /
) of 0.7, while self-similarity is characterized by a
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | ) of 0.7, while self-similarity is characterized by a a corresponding amplitude. For the single perturbation an initial disturbance on the development of Rayleigh-Taylor channel walls. The small wavelength single perturbation comprises only one wavelength and amplitude, and a binary determine the growth of the mixing layer. In the large early stages. experiment. The mixing process was studied using dye in one experiments grew linearly until approximately 4 to 6 experiments, a large wavelength (4 cm) perturbation and a exponential turnover times downstream, where they then began fluids travel with the same free stream velocity so that no fluids, either a single or a binary perturbation was found to suppress the growth of the large wavelength in the grew linearly until the growth was impeded by the flow growth is characterized by a saturation growth constant (C [] introduced a combination of these two wavelengths in a single introduced via an oscillating flapper. A single perturbation mixing. The experimental apparatus is a flow channel in of the fluids, and photographing the mixture. The perturbation experiments, it was found that the small perturbation is one that comprises two wavelengths, each with photographs were then digitized and ensemble averaged to quadratic growth constant [ ]of 0.07. For the binary separate experiments. The binary perturbation experiments shear is present, thus buoyancy drives the mixing between the small wavelength (2 cm) perturbation were introduced in small wavelength when imposed upon the large wavelength was This thesis describes an experimental study of the effect of to grow nonlinearly and approach self-similarity. Linear two fluids. At the unstable interface between the two wavelength dominates the growth of the mixing layer. This wavelength single perturbation experiments the mixing layer which a heavy fluid is placed above a light fluid. Both |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xx, 193 leaves : illustrations ; 28cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |