NRL Inertial Confinement Fusion Theory Program 1979 Annual Report, October 1978 - December 1979.
Abstract
Research in each of the four current program areas is reported: Section A. Laser Light Absorption. Section B. Fluid Dynamics of Ablative Acceleration. Section C. Development of Computational Techniques. Section D. Rayleigh-Taylor Stabilization Techniques. Our work in Section A includes an analysis of anomalous absorption, backscatter and flux limitation in laser-produced plasmas. The physical processes included in the model are inverse bremsstrahlung, resonant absorption, absorption by ion-acoustic fluctuations, and Brillouin backscatter. In Section B we report our work on the energy conversion of light ion beams through the ablative acceleration of thin foils, our work on spherical shock implosion dynamics and stability, and our 1D and 2D work on the dynamics of laser-driven thin plastic foils. In Section C we report our current developments in triangular grid techniques. These results include improved calculations of the Rayleigh-Taylor instability through higher resolution in the SPLISH numerical model. In Section D, we report our improved understanding of the 'quasi-static' equilibria. We also report on our development of a vorticity generation model to study the Rayleigh-Taylor instability and include our results for test problem and actual laser-driven ablation layer profiles. We also include our work on the Rayleigh-Taylor eigenvalue problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 20, 1980
- Accession Number
- ADA092470
Entities
Organizations
- United States Naval Research Laboratory