Speaker
Yanyun Ma
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.2027.pdf
Progress on radiation hydrodynamics simulations of ICF at NUDT
Y. Y. Ma1,2,*, F. Y. Wu1, Y. Z. Ge1, X. H. Yang1, B. B. Xu1, Y. Z. Ke1 and L. Meng1
1
Department of Physics, National University of Defense Technology, Changsha, China
2
IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai, China
Some recent progress on radiation hydrodynamics simulations at National University of
Defense Technology (NUDT) has been made. Some new code modules have been developed
to improve the applications of the code MULTI. A reflection and refraction module was
added into the Multi-2D for the simulations of inertial confinement fusion (ICF) driven by
laser. Some modules were also added into the Multi-2D for the simulations of inertial
confinement fusion (ICF) driven by Z-pinch. Physical models describing the formation of
Z-pinch dynamic hohlraums were established. The magneto-hydrodynamic models were
implemented as packages for the open-source code MULTI-IFE (1D) and MULTI-2D, which
were initially designed for the simulations of inertial confinement fusion driven by laser or
heavy ion.
Z-pinch dynamic hohlraum is one of the competitive ways to drive inertial confinement
fusion due to the excellent properties, such as high radiation conversion efficiency, low cost
of X-ray energy and larger fusion energy gain. In order to increase the radiation conversion
efficiency and improve the radiation uniformity in the dynamic hohlraum and suppress the
fluid instability at the process of capsule implosion，the related factors affecting radiation
temperature in dynamic hohlraum were analyzed, and the reasons of radiation
non-uniformity around the surface of fusion capsule were discussed, and the fluid
instabilities at the inner and outer surfaces of ablator were explored through both theoretical
analysis and radiation hydrodynamics simulations.Text of the contribution.
This work is financially supported by the National Natural Science Foundation (Grant Nos.
11475260 and 11474360), the National Basic Research Program of China (Grant No.
2013CBA01504).
*email: yanyunma@126.com
