软件负责人:方剑
软件简介:ASTR(Advanced Solver for Turbulence Research) 是一款专为高精度、大规模计算需求打造的开源可压缩流体动力学(CFD)求解器。
它基于高阶差分格式与模块化并行架构,能够高效准确地模拟从层流到湍流、从激波到燃烧等复杂流动过程,广泛适用于航空航天、高超声速推进、湍流研究、化学反应流等前沿领域。
ASTR 主要特色包括:
• 支持高阶紧致格式:包括可并行的高阶紧致激波捕捉格式,使其具有很好的计算精度;
• 耦合多物理过程:内置热力学模型、湍流模型、化学反应模块和矩方法模块,可广泛应用于湍流研究、燃烧以及稀薄气体问题;
• 采用模块化Fortran和面向对象设计,便于扩展与二次开发;
• 丰富的前后处理工具,支持多种格式输出与可视化接口。
目前,ASTR 已广泛应用于高超声速边界层转捩、激波/湍流相互作用、超音速燃烧以及燃烧不稳定性等研究课题,并在国内外的多个超算平台上实现高效率运行。
应用研究(有动态图):
• Hypersonic engineering relies on the deep understanding and accurate prediction of critical flow phenomena over hypersonic vehicles.
• Within SCD, research related to hypersonic engineering is being conducted in aspects of applied mathematics, high-performance computing, fundamental aerodynamics and engineering applications.
• Based on the advanced numerical tools developed in SCD, a series of key flow phenomena in hypersonic vehicle were studied, leading to discovery of new flow structures and mechanisms.
• The fundamental research has also boosted the industry. An example is the improved turbulence model based on the newly discovered mechanism has been adopted by the Rolls-Royce company in the design of aeroengine.
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