核反应动力学高效数值模拟软件集成开发与应用

项目名称： 核反应动力学高效数值模拟软件集成开发与应用

项目编号： No.11472059

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 田保林

作者单位： 北京应用物理与计算数学研究所

项目金额： 95万元

中文摘要： 在武器物理、惯性约束聚变、反应堆物理、天体物理等国防科技和前沿科学领域，核反应动力学软件是开展相关研究的一个不可或缺的关键手段。然而，现有软件难以适应新形势下精密化物理建模和高置信度大规模数值模拟的需求，为此本项目计划在深入剖析现有武器物理应用程序的物理模型、计算方法和程序结构的基础上，采用现代软件研发模式，集成创新，结合并行底层支撑框架JASMIN，研制新一代的核反应动力学高效数值模拟软件平台。拟开展的主要工作有：（1）制定程序模块化和标准化规范，设计先进的核反应动力学数值模拟软件体系架构，（2）研制基于ALE方法的辐射流体力学算法库和程序模块库；（3）研制高效中子输运计算方法库和程序库。本项目以工程应用数值模拟需求为牵引，探索工程物理应用软件研发的新思路、新方法，研制具有较好可扩展性、可复用性的核反应动力学数值模拟软件平台，为工程和科学计算提供软件支撑，有重要理论意义和应用价值。

中文关键词： 核反应动力学；辐射流体力学；中子输运；高效计算；Jasmin并行支撑软件框架

英文摘要： Numerical softwares for hydrodynamics with nuclear reaction are playing a key role for the research and application in the field of defense technology and foundation science, such as weapon physics, inertial confined fusion(ICF), nuclear reactor physics and astrophysics. However, with the urgent demand of more physics based modeling and high fidelity simulation, it is necessary to develop new generation numerical simulation software. Based on the comprehensive analysis for legacy code, a new nuclear reaction dynamics software will be developed with modern software research and development mode, and it will be implemented based on the parallel support infrastructure, JASMIN (J parallel Adaptive Structured Mesh Applications INfrastructure). There are three main tasks in the project. Firstly, a detailed and comprehensive software infrastructure will be designed for the proposed nuclear reaction dynamics software, and some standards for code design will be given for the implementation of code modules. Secondly, a database of algorithms and code modules will be constructed, and they will be used for the integration of the arbitrary Lagrangian-Eulerian(ALE) code for radiation hydrodynamics. Thirdly, high efficiency algorithms and codes will be implemented for neutron transport simulation. With a specific and solid application background, some new methods and thoughts will come into being in the project, and with the guidance of the new software research mode, a new software platform with extensibility and reusability will be constructed with important theory and application value, and it will give a solid support for engineer and science research.

英文关键词： nuclear reaction dynamics;radiation hydrodynamics;neutron transport;high efficiency computation;J parallel Adaptive Structured Mesh Applications INfrastructure(JASMIN)