A comparison of three-dimensional multimode hydrodynamic instability growth on various National Ignition Facility capsule designs with HYDRA simulations

被引:121
作者
Marinak, MM [1 ]
Haan, SW [1 ]
Dittrich, TR [1 ]
Tipton, RE [1 ]
Zimmerman, GB [1 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
关键词
D O I
10.1063/1.872643
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Three similar cryogenic ignition capsule designs for the National Ignition Facility [J. Lindl, Phys. Plasmas 2, 3933 (1995)] are analyzed to determine surface roughness specifications required to mitigate the growth of hydrodynamic instabilities. These capsule utilize brominated plastic, polyimid and copper-doped beryllium ablator materials respectively. Direct three-dimensional numerical simulations with the HYDRA radiation hydrodynamic code [M. M. Marinak et al., Phys. Plasmas 3, 2070 (1996)] examine the growth of multimode perturbations seeded by roughness on the outer ablator and inner ice surfaces. The simulations, which showed weakly nonlinear behavior for optimized surfaces, were carried through ignition and burn. A three-dimensional multimode perturbation achieves somewhat larger amplitudes in the nonlinear regime than a corresponding two-dimensional simulation of the same rms-amplitude. The beryllium and polyimid capsules exhibit enhanced tolerance of roughness on both the ice and ablator surfaces. (C) 1998 American Institute of Physics.
引用
收藏
页码:1125 / 1132
页数:8
相关论文
共 38 条
[1]   SCALE-INVARIANT MIXING RATES OF HYDRODYNAMICALLY UNSTABLE INTERFACES [J].
ALON, U ;
HECHT, J ;
MUKAMEL, D ;
SHVARTS, D .
PHYSICAL REVIEW LETTERS, 1994, 72 (18) :2867-2870
[2]   SCALE-INVARIANT REGIME IN RAYLEIGH-TAYLOR BUBBLE-FRONT DYNAMICS [J].
ALON, U ;
SHVARTS, D ;
MUKAMEL, D .
PHYSICAL REVIEW E, 1993, 48 (02) :1008-1014
[3]   3-DIMENSIONAL MULTIMODE SIMULATIONS OF THE ABLATIVE RAYLEIGH-TAYLOR INSTABILITY [J].
DAHLBURG, JP ;
FYFE, DE ;
GARDNER, JH ;
HAAN, SW ;
BODNER, SE ;
DOOLEN, GD .
PHYSICS OF PLASMAS, 1995, 2 (06) :2453-2459
[4]   THE EFFECT OF SHAPE IN THE 3-DIMENSIONAL ABLATIVE RAYLEIGH-TAYLOR INSTABILITY .1. SINGLE-MODE PERTURBATIONS [J].
DAHLBURG, JP ;
GARDNER, JH ;
DOOLEN, GD ;
HAAN, SW .
PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (02) :571-584
[5]   NIF capsule design update [J].
Dittrich, TR ;
Haan, SW ;
Pollaine, S ;
Burnham, AK ;
Strobel, GL .
FUSION TECHNOLOGY, 1997, 31 (04) :402-405
[6]   DESIGN AND MODELING OF IGNITION TARGETS FOR THE NATIONAL IGNITION FACILITY [J].
HAAN, SW ;
POLLAINE, SM ;
LINDL, JD ;
SUTER, LJ ;
BERGER, RL ;
POWERS, LV ;
ALLEY, WE ;
AMENDT, PA ;
FUTTERMAN, JA ;
LEVEDAHL, WK ;
ROSEN, MD ;
ROWLEY, DP ;
SACKS, RA ;
SHESTAKOV, AI ;
STROBEL, GL ;
TABAK, M ;
WEBER, SV ;
ZIMMERMAN, GB ;
KRAUSER, WJ ;
WILSON, DC ;
COGGESHALL, SV ;
HARRIS, DB ;
HOFFMAN, NM ;
WILDE, BH .
PHYSICS OF PLASMAS, 1995, 2 (06) :2480-2487
[7]   ONSET OF NONLINEAR SATURATION FOR RAYLEIGH-TAYLOR GROWTH IN THE PRESENCE OF A FULL SPECTRUM OF MODES [J].
HAAN, SW .
PHYSICAL REVIEW A, 1989, 39 (11) :5812-5825
[8]  
HATCHETT SP, UCRLJC108349
[9]   POTENTIAL FLOW MODELS OF RAYLEIGH-TAYLOR AND RICHTMYER-MESHKOV BUBBLE FRONTS [J].
HECHT, J ;
ALON, U ;
SHVARTS, D .
PHYSICS OF FLUIDS, 1994, 6 (12) :4019-4030
[10]   Three-dimensional simulations and analysis of the nonlinear stage of the Rayleigh-Taylor instability [J].
Hecht, J ;
Ofer, D ;
Alon, U ;
Shvarts, D ;
Orszag, SA ;
McCrory, RL .
LASER AND PARTICLE BEAMS, 1995, 13 (03) :423-440