Aerodynamics and Aeroacoustics Modelling Distributed Propulsion

该项目涉及安装了新型分布式推进系统的新飞机构型的气动和气动声学性能的数值模拟，即机翼上紧密分布的多个螺旋桨。该项目将使用格子涡法(LVM)对分布式推进系统进行CFD建模，这将有助于我们更好地了解多螺旋桨系统的气动性能以及螺旋桨-螺旋桨和螺旋桨-机体相互作用的影响。将进行全面的参数研究，以评估这些系统在不同运行条件下的气动性能。系统的噪声特征也将使用FfowcsWilliam-Hawking方法进行分析。这里感兴趣的是叶片锁相对辐射音调噪声的影响。该项目将与巴西航空工业公司密切合作。

This project concerns numerical modelling of the aerodynamic and aeroacoustic performance of new aircraft configurations fitted with novel distributed propulsion systems, i.e. multiple propellers distributed tightly over the wing. The project will involve CFD modelling of the distributed propulsion system using the Lattice Vortex Method (LVM), which will help us better understand the aerodynamic performance of multi-propeller systems and the propeller-propeller and propeller-airframe interaction effects. A thorough parametric study will be performed to assess the aerodynamic performance of such systems at different operating conditions. The noise signature of the system will also be analysed using the FfowcsWilliam-Hawking method. Of interest here is the effect of blade phase-locking on the radiated tonal noise. The project will be carried out in close collaboration with Embraer.