支持多物理耦合的粒子輸運算法與軟件研究

陽述林 江松 魏軍俠 洪振英 黃忠億

摘 要：“支持多物理耦合的粒子輸運算法與軟件”屬于國家973計劃項目“適應于千萬億次科學計算的新型計算模式”，由北京應用物理與計算數學研究所、清華大學、國防科技大學承擔。該課題圍繞實際重大需求中粒子輸運與流體力學過程的耦合，開展了流體力學計算、輻射擴散計算和粒子輸運計算的數值算法研究。該文報告重點闡述SN中子輸運多級并行算法、中子輸運方程基于介質分區的自適應計算方法和輻射流體問題的量身定做有限點方法。

關鍵詞：流體力學 輻射擴散 粒子輸運 多級并行 自適應方法 量身定做有限點方法

Abstract：The project“Algorithms and Software of Particle Transport to Support the Coupling of Multi-physics”is the sub-project of the 973 project “New Paradigms for Peta-scale Scientific Computing”and is taken on IAPCM， Tsinghua University and National University of Defense Technology. The project has accomplished the research of the numerical algorithms for computing fluid dynamics， radiation diffusion， particle transport， surrounding the coupling of particle transport with fluid dynamics for actual important requirements. This paper is the annual report of the project about the main developments for the year 2013， which focuses on the multilevel parallel algorithm and the adaptive method for neutron transport equations as well as the tailored finite point method for radiation diffusion problems.

Key Words：Fluid dynamics；Radiation diffusion；Particle transport；Multilevel parallel；Adaptive method；Tailored finite point method

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