Integrated simulation of capsule compression distortion experiments in radiation multi-group diffusion approximation

Zhai Chuanlei; Li Shuanggui; Yong Heng; Gu Peijun

doi:10.3788/HPLPB20132505.1157

Volume 25 Issue 05

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(05): 1157-1160

Chen Nan, Dai Man, Gao Feng, et al. Energy spectrum measurement with circular array method[J]. High Power Laser and Particle Beams, 2013, 25: 2995-2998. doi: 10.3788/HPLPB20132511.2995

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Zhai Chuanlei, Li Shuanggui, Yong Heng, et al. Integrated simulation of capsule compression distortion experiments in radiation multi-group diffusion approximation[J]. High Power Laser and Particle Beams, 2013, 25: 1157-1160. doi: 10.3788/HPLPB20132505.1157

Chen Nan, Dai Man, Gao Feng, et al. Energy spectrum measurement with circular array method[J]. High Power Laser and Particle Beams, 2013, 25: 2995-2998. doi: 10.3788/HPLPB20132511.2995

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Integrated simulation of capsule compression distortion experiments in radiation multi-group diffusion approximation

doi: 10.3788/HPLPB20132505.1157

1.
Institute of Applied Physics and Computational Mathematics,Beijing 100094,China

Received Date: 2012-09-02
Rev Recd Date: 2012-12-21
Publish Date: 2013-03-12

Abstract

Abstract

In capsule compression experiments on SG-Ⅱ facility, the variation of the hohlraum length affects the radiant intensity of the capsule equator and poles, thus the fuel is compressed to different shapes. We introduced the radiation hydrodynamics equations and numerical methods used in radiation multi-group diffusion modeling. Using the recently developed two-dimensional LARED-integration code, we accomplished the integrated simulation of compression distortion experiments of SG-Ⅱ hohlraums with different lengths in radiation multi-group diffusion approximation. The shapes of fuel simulated agree well with those in the SG-Ⅱ experiments, which shows that the radiation multi-group diffusion approximation could reflect the radiation uniformity in the hohlraum.

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