NUMERICAL SIMULATION OF RAYLEIGH-TAYLOR INSTABILITY IN ABLATION DRIVEN SYSTEMS.
AuthorVERDON, CHARLES PETER.
KeywordsThermonuclear fuels -- Ablation -- Mathematical models.
Controlled fusion -- Mathematical models.
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PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractTwo-dimensional numerical simulations of ablatively accelerated thin-shells subject to Rayleigh-Taylor instability are presented. Results for both single wavelength and multiwavelength perturbations show that the nonlinear effects of the instability are evident mainly in the "bubble" rather than the "spike." Approximate roles for predicting the dominant nonlinear mode-mode interactions, which limit shell performance, are also discussed. The work concludes with a discussion of recommendations for future work in this area.
Degree ProgramNuclear and Energy Engineering