Full Paper
IAEA-CN77
Contents  Return  Previous Page  Next Page  Index


Return To: Session IFP - Inertial Fusion
Prev Page: (IFP/19) Implosion Physics, Alternative Targets Design and Neutron
Next Page: Session ICP - Innovative Concepts


(IFP/20) Recent Progress of an Integrated Implosion Code and Modeling of Element Physics

H. Nagatomo1), H. Takabe1), K. Mima1), N. Ohnishi1), A. Sunahara1), T. Takeda1), K. Nishihara1), A. Nishiguchu2), K. Sawada3)
 
1) Institute of Laser Engineering, Osaka University, Osaka Japan
2) Osaka Institute of Technology, Osaka, Japan
3) Department of Aeronautics and Space Engineering, Tohoku University, Sendai, Japan

Abstract.  Physics of the inertial fusion is based on a variety of elements such as compressible hydrodynamics, radiation transport, non-ideal equation of state, non-LTE atomic process, and relativistic laser plasma interaction. In addition, implosion process is not in stationary state and fluid dynamics, energy transport and instabilities should be solved simultaneously. In order to study such complex physics, an integrated implosion code including all physics important in the implosion process should be developed. The details of physics elements should be studied and the resultant numerical modeling should be installed in the integrated code so that the implosion can be simulated with available computer within realistic CPU time. Therefore, this task can be basically separated into two parts. One is to integrate all physics elements into a code, which is strongly related to the development of hydrodynamic equation solver. We have developed 2-D integrated implosion code which solves mass, momentum, electron energy, ion energy, equation of states, laser ray-trace, laser absorption radiation, surface tracing and so on. The reasonable results in simulating Rayleigh-Taylor instability and cylindrical implosion are obtained using this code. The other is code development on each element physics and verification of these codes. We had progress in developing a nonlocal electron transport code and 2 and 3 dimension radiation hydrodynamic code.

Read the full paper in PDF format.

IAEA 2001