气动噪声问题是大型商用客机适航工程顺利推进的先决条件，是提高我民航客机市场竞争力核心技术的根本体现，更是我国大型商用客机可持续发展的重要保障。本项目联合高性能计算、应用数学和飞行器设计等领域研究人员，通过协同研究攻克客机气动噪声技术难点。本项目将基于Boltzmann方程，发展与FW-H方程耦合求解的大规模、高精度、快速并行求解算法、气动噪声的直接求解格子Boltzmann方法、网格快速并行生成及自适应网格加密技术，并面向P量级超级计算机系统开发相对应的计算节点层次存储架构和并行优化的循环分块方法，在国家超算中心P量级超级计算机上，实现大规模、高精度、快速高效的商用客机气动噪声数值计算和程序优化，计算核数达十余万核量级，并通过实验数据验证计算方法和确认计算结果。研制出适用于商用客机气动噪声计算的软件系统，并应用于商用客机气动噪声实际问题的数值模拟，最终为商用客机研制提供有效地技术支撑。

Aerodynamic noise problem is considered as a prerequisite for commercial aircraft airworthiness engineering. It is essential embodiment to improve core technical competitiveness of both home and abroad airliner markets. It is also an important guarantee for sustainable development of commercial aircraft in China. The project will deal with and overcome technical difficulties of commercial aircraft aerodynamic noise by the collaborations among high performance computing and applications, applied mathematics and aircraft designs. Based on the Boltzmann equation, Ffowcs Williams-Hawkings (FW-H ) equation and their coupling equations, highly precise and fast large-scale parallel algorithm of lattice Boltzmann method for directly solving aerodynamic noise are presented with parallel mesh generations and adaptive mesh refinements. Loop tiling techniques for exploitation of hierarchical memory in computing nodes and parallel optimization are intensively studied on the domestic Petaflop-scale supercomputer system. Numerical models and computational optimization program of commercial aircraft aerodynamic noise with large scale, high precision, scalability and efficiency will be fulfilled by using more than ten thousands of computing cores. Numerical results will be verified and validated by experimental data. An applied software system of computational commercial aircraft aerodynamic noise will be developed, applied to numerically simulate practical problems of commercial aircraft aerodynamic noise, and finally used to provide effective technical support for the development of commercial aircraft.