# Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments

## Abstract

In the frame of a CEA/US DOE collaboration, radiation driven spherically convergent experiments were performed on the Nova laser in order m measure the Rayleigh-Taylor growth at the ablation front. Numerical simulations using the 2D Lagrangian code FCI2 have correctly reproduced experiments in moderate convergent geometry. [C. Cherfils et al., PRL 83, 5507 (1999)]. Experiments have addressed convergence ratios up to 4 by considering larger capsules, larger hohlraum and longer laser pulses [S.G. Glendinning et al., to be published in Physics of Plasmas]. Numerical analysis of these high convergence implosions is presented, and the effect of convergence on the Rayleigh-Taylor growth is investigated.

- Authors:

- Publication Date:

- Research Org.:
- Lawrence Livermore National Lab., CA (US)

- Sponsoring Org.:
- USDOE Office of Defense Programs (DP) (US)

- OSTI Identifier:
- 791724

- Report Number(s):
- UCRL-JC-139076

TRN: US200304%%522

- DOE Contract Number:
- W-7405-Eng-48

- Resource Type:
- Conference

- Resource Relation:
- Conference: 26th European Conference on Laser Interaction with Matter, Prague (CZ), 06/12/2000--06/16/2000; Other Information: PBD: 17 May 2000

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ABLATION; CONVERGENCE; GEOMETRY; IMPLOSIONS; LAGRANGIAN FUNCTION; LASERS; NUMERICAL ANALYSIS; PHYSICS; RADIATIONS

### Citation Formats

```
Galmiche, D, Cherfils, C, Glendinning, S G, Remington, B A, and Richard, A.
```*Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments*. United States: N. p., 2000.
Web.

```
Galmiche, D, Cherfils, C, Glendinning, S G, Remington, B A, & Richard, A.
```*Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments*. United States.

```
Galmiche, D, Cherfils, C, Glendinning, S G, Remington, B A, and Richard, A. Wed .
"Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments". United States. https://www.osti.gov/servlets/purl/791724.
```

```
@article{osti_791724,
```

title = {Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments},

author = {Galmiche, D and Cherfils, C and Glendinning, S G and Remington, B A and Richard, A},

abstractNote = {In the frame of a CEA/US DOE collaboration, radiation driven spherically convergent experiments were performed on the Nova laser in order m measure the Rayleigh-Taylor growth at the ablation front. Numerical simulations using the 2D Lagrangian code FCI2 have correctly reproduced experiments in moderate convergent geometry. [C. Cherfils et al., PRL 83, 5507 (1999)]. Experiments have addressed convergence ratios up to 4 by considering larger capsules, larger hohlraum and longer laser pulses [S.G. Glendinning et al., to be published in Physics of Plasmas]. Numerical analysis of these high convergence implosions is presented, and the effect of convergence on the Rayleigh-Taylor growth is investigated.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {2000},

month = {5}

}

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