Multi-Scale Aerodynamic modelling of Helicopters/UAV in Urban Environments

航空领域创新的一个重要来源涉及无人机或旋翼机的飞行，有/没有乘客。与在专用环境（机场或离地面10公里的空域）中飞行的飞机不同，这些飞行器靠近钻井平台或建筑物等物体，甚至在城市内部运行。为了满足分别对应于竞争和安全问题的性能和认证标准，有必要对飞机在这种环境中的飞行进行建模。一个主要的限制是建模时间必须很短，即能够以低成本集成到工业飞行模拟过程中，同时具有可接受的精度。本项目旨在首先耦合现有的多尺度飞机空气动力学模拟模型，包括旋翼，城市模型和大气条件，以改进飞行模拟器。其次，为了满足低成本标准，该项目引入了人工智能模型作为小型（空气动力学）和大型（城市）软件的“代理模型”。这些新方法将允许行业和认证机构访问基于物理的模型，以准确和逼真地模拟旋翼机在城市环境中的飞行。此外，人工智能的进步将允许魁北克开发一个新的专业领域，即人工智能应用于计算流体动力学（AI-CFD）。实际上，大气条件和城市所引起的扰动是影响飞机空气动力学的重要参数。因此，魁北克航空工业在城市环境中飞行的发展需要这样的工具，从竞争和安全的角度来看，这是必要的。

An important source of innovation in the field of aeronautics involves the flight of UAVs or rotorcraftwith/without passengers. Unlike aircraft that fly in dedicated environments (airports or airspace 10 km above the ground), these vehicles operate close to objects such as drilling platforms or buildings, or even inside cities. In order to meet performance and certification criteria corresponding to competitive and safety issues respectively, it is necessary to model the flight of aircraft in such environments. A major constraint is that the modelling time must be small, i.e. capable of being integrated into industrial flight simulation processes at low cost, while possessing acceptable accuracy.This project aims firstly to couple existing multi-scale models of aircraft aerodynamic simulations including rotors, city models and atmospheric conditions to improve flight simulators. Secondly, in order to meet the low-cost criteria, this project introduces artificial intelligence models as a 'surrogate model' for both small-scale (aerodynamics) and large-scale (cities) software.These new approaches will allow industry and certification agencies access to physics-based models toaccurately and realistically simulate the flight of rotorcraft in an urban context. In addition, advances inartificial intelligence will allow the development of a new field of expertise in Quebec, namely artificialintelligence applied to computational fluid dynamics (AI-CFD). Indeed, the disturbances introduced byatmospheric conditions and cities are important parameters affecting the aerodynamics of aircraft. It follows that the development of the Quebec aeronautical industry for the flight of aircraft in urban environments requires such tools, which are necessary both from a competitive and a safety point of view.