Statistical theories of Rayleigh-Taylor instability for compressible fluids
Statistical theories for the outer envelope of the Rayleigh-Taylor mixing layer refer to a simplified dynamics of fundamental modes and their interactions. These modes are bubbles of light fluid entrained in the mixing layer between the undisturbed light and heavy fluids. The dynamics can be understood in terms of the motion of a single mode and the interactions between modes. The single mode dynamics has to be solved self-consistently in a background field of random bubbles. The dominant interaction is bubble merger, i.e., the spreading of larger bubbles at the bubble envelope. Merger leads to dynamically increasing length scales, and thus to a dynamic renormalization of scaling dimensions. The mechanism for bubble merger is the differential motion of physically adjacent single bubble modes. This paper is focused on the above topics: single bubble motion, bubble interactions and statistical models. 10 refs., 4 figs., 2 tabs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6861214
- Report Number(s):
- LA-UR-88-3702; CONF-8810234-1; ON: DE89003472
- Resource Relation:
- Conference: Workshop on the physics of compressible turbulent mixing, Princeton, NJ, USA, 24 Oct 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
RAYLEIGH-TAYLOR INSTABILITY
STATISTICAL MODELS
BUBBLES
COMPRESSIBLE FLOW
EQUATIONS
MIXING
NUMERICAL DATA
TURBULENCE
DATA
FLUID FLOW
INFORMATION
INSTABILITY
MATHEMATICAL MODELS
640410* - Fluid Physics- General Fluid Dynamics
990230 - Mathematics & Mathematical Models- (1987-1989)