arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.03810physics.plasm-phphysics.comp-phphysics.flu-dyn
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聚变燃料点火和燃烧的三维Euler流体程序

Three-Dimensional Euler Fluid Code for Fusion Fuel Ignition and Burning

Hiroki Nakamura, Shigeo Kawata, Ken Uchibori, Takahiro Karino

摘要:

该文献描述了通过欧拉方法模拟三维空间中的等离子体和流体的数值算法,其中空间网格固定到空间。等离子体和流体通过空间欧拉网格边界。欧拉方法可以表示等离子体和流体的大变形。另一方面,当等离子体或流体被压缩到高密度时,应确保空间分辨率以精确地描述密度变化。本文开发的三维欧拉程序用于模拟核聚变燃料的点火和燃烧。因此,三维欧拉程序包括DT燃料反应,α粒子扩散,α粒子沉积加热DT燃料和DT燃料消耗的DT反应,以及基于三温度可压缩流体模型的热能扩散。

英文摘要:

The document describes a numerical algorithm to simulate plasmas and fluids in the 3 dimensional space by the Euler method, in which the spatial meshes are fixed to the space. The plasmas and fluids move through the spacial Euler mesh boundary. The Euler method can represent a large deformation of the plasmas and fluids. On the other hand, when the plasmas or fluids are compressed to a high density, the spatial resolution should be ensured to describe the density change precisely. The present 3D Euler code is developed to simulate a nuclear fusion fuel ignition and burning. Therefore, the 3D Euler code includes the DT fuel reactions, the alpha particle diffusion, the alpha particle deposition to heat the DT fuel and the DT fuel depletion by the DT reactions, as well as the thermal energy diffusion based on the three-temperature compressible fluid model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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