Toward a new horizon for in-flight icing and wind engineering computational simulation

我们计划开发计算流体动力学(CFD)方法，以凝聚力和最先进的方式解决一些长期悬而未决的飞行结冰问题，这些问题只应用了经验规则。这些方法中的一些方法可以被证明对风力涡轮机领域和长期基于风洞测试的计算风工程也很重要。因此，拟议的研究在工程应用方面具有广阔的前景，但在基本的数学和计算方法方面却紧密相连。 不同的项目是开发高级数值模型，以分析性地预测或计算： CFD-飞行结冰：冰面粗糙度表征 CFD-飞行结冰：过冷大液滴和冰晶对飞机和喷气发动机的影响 CFD-飞行结冰：冰的破裂、脱落和后续跟踪 CFD-飞行结冰：用于时间精确模拟的3D网格变形 CFD-飞行结冰和CFD-风：湍流模型的多尺度方法 CFD-飞行结冰和CFD-风：减少阶数模型以显著减少求解时间 短期目标是开发、验证和验证拟议模型的数学和数值；而长期目标是大力继续我们作为先驱和领导者的成功探索，在全球合规(WIND)和认证(结冰)过程中发挥计算模拟的主导作用。 这笔探索基金代表着培养高素质人才的沃土，将应用数学和工程应用经验巧妙地结合在一起，他们将继续在对加拿大具有战略重要性的领域发挥重要的学术和工业作用。

We plan to develop Computational Fluid Dynamics (CFD) methods to address, in a cohesive and state-of-the-art manner, some long pending issues of in-flight icing to which only empirical rules had been applied. Some of these approaches can be shown to also be of importance to the fields of wind turbines and for computational wind engineering, long based on wind tunnel testing. As such, the proposed research is broad in its engineering applications perspective, but tightly interconnected in its underlying mathematics and computational methodology. The various projects are to develop advanced numerical models to analytically predict or calculate: CFD-In-flight Icing: Ice surface roughness characterization CFD-In-flight Icing: Supercooled Large Droplets and Ice Crystals effects on aircraft and in jet engines CFD-In-flight Icing: Ice cracking, its shedding and subsequent tracking CFD-In-flight Icing: 3D mesh deformation for time-accurate simulations CFD-In-flight Icing and CFD-Wind: Multiscale approaches for turbulence models CFD-In-flight Icing and CFD-Wind: Reduced Order Models to considerably reduce solution times The short-term objective is to develop, verify and validate the mathematics and numerics of the proposed models; while the long-term objective is to vigorously continue our successful quest, as pioneers and leaders, in carving a predominant role for computational simulation in compliance (wind) and certification (icing) processes, worldwide. This Discovery grant represents a fertile ground to cultivate Highly Qualified Personnel, with a judicious mix of applied mathematics and engineering applications experience, who will continue playing important academic and industrial roles in areas of strategic importance to Canada.