Code O-SUKI-N 3D: Upgraded Direct-Drive Fuel Target 3D Implosion Code in Heavy Ion Inertial Fusion

TL;DR

The paper introduces Code O-SUKI-N 3D, an advanced simulation system for modeling 3D fuel implosion, ignition, and burning in heavy ion beam inertial fusion, integrating Lagrangian and Eulerian methods.

Contribution

It presents an upgraded 3D simulation code that combines Lagrangian and Eulerian approaches for more accurate modeling of HIF target implosion dynamics.

Findings

Successfully simulates 3D fuel implosion behavior

Couples with HIB illumination and energy deposition models

Provides detailed insights into ignition and burning processes

Abstract

The Code O-SUKI-N 3D is an upgraded version of the 2D Code O-SUKI (Comput. Phys. Commun. 240, 83 (2019)). Code O-SUKI-N 3D is an integrated 3-dimensional (3D) simulation program system for fuel implosion, ignition and burning of a direct-drive nuclear-fusion pellet in heavy ion beam (HIB) inertial confinement fusion (HIF).The Code O-SUKI-N 3D consists of the three programs of Lagrangian fluid implosion program, data conversion program, and Euler fluid implosion, ignition and burning program. The Code O-SUKI-N 3D can also couple with the HIB illumination and energy deposition program of OK3 (Comput. Phys. Commun. 181, 1332 (2010)). The spherical target implosion 3D behavior is computed by the 3D Lagrangian fluid code until the time just before the void closure of the fuel implosion. After that, all the data by the Lagrangian implosion code are converted to the data for the 3D Eulerian code. In the 3D Euler code, the DT fuel compression at the stagnation, ignition and burning are computed. The Code O-SUKI-N 3D simulation system provides a capability to compute and to study the HIF target implosion dynamics.