Three-dimensional Rayleigh-Taylor instability Part 2. Experiment-Reference-Cited by-同舟云学术

Three-dimensional Rayleigh-Taylor instability Part 2. Experiment

Published:1988-02 Issue: Volume:187 Page:353-371
ISSN:0022-1120
Container-title:Journal of Fluid Mechanics
language:en
Short-container-title:J. Fluid Mech.

Author:

Jacobs J. W.,Catton I.

Abstract

Three-dimensional Rayleigh-Taylor instability, induced by accelerating a small volume of water down a vertical tube using air pressure, is investigated. Two geometries are studied: a 15.875 cm circular tube and a 12.7 cm square tube. Runs were made with initial disturbances in the form of standing waves forced by shaking the test section in a lateral direction. Accelerations ranging from 5 to 10 times gravitational acceleration and wavenumbers from 1 cm−1to 8 cm−1are studied. The resulting instability was recorded and later analysed using high-speed motion picture photography. Measurements of the growth rate are found to agree well with linear theory. In addition, good qualitative agreement between photographs and three-dimensional surface plots of the weakly nonlinear solution of Part 1 of this series (Jacobs & Catton 1988) is obtained.

Publisher

Cambridge University Press (CUP)

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference13 articles.

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2. Allred, J. C. & Blount, G. H. 1954 Experimental studies of Taylor instability.Los Alamos Scientific Laboratory rep. LA-1600.

3. Jacobs, J. W. & Catton, I. 1988 Three-dimensional Rayleigh-Taylor instability. Part 1. Weakly nonlinear theory.J. Fluid Mech. 187,329–352.

4. Ratafia, M. 1973 Experimental investigation of Rayleigh-Taylor instability.Phys. Fluids 16,1207–1220.

5. Jacobs, J. W. , Bunster, A. , Catton, I. & Plesset, M. S. 1985 Experimental Rayleigh-Taylor instability in a circular tube. Trans. ASME I:J. Fluids Engng 107,460–466.

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