Speaker: Nick Zang, Queen Mary University of London
Wed 13th May 12:00 – 13:00 UK time. This seminar will be held online via Microsoft Teams.
Abstract
Hybrid and fully-electric propulsion system driven by propellers is a promising candidate for powering the next-generation passengers aircrafts, advanced air mobility vehicles as well as service drones. Unlike their counterparts found in conventional rotorcrafts, they often are smaller in size and operate at higher rotational speeds. More importantly, they encounter significant installation effects owing to the more sophisticated vehicular design (i.e., distributed, multi-rotor, etc.). In this seminar, I will present our latest investigation on the aeroacoustic characteristics of a 2-bladed electric propeller, subjected to incoming turbulence of varying length-scales, generated in the wake of a cylinder structure. The work has been carried out using mainly Lattice Boltzman numerical simulation. The results show that two distinct noise regimes can possibly arise from the propeller ingesting a turbulent incoming flow.
Biography
Nick Zang is currently a Senior Lecturer in Aerospace Engineering at Queen Mary University of London (QMUL). Graduated from NTU, he mainly works in the intersection between fluid flows and aeroacoustics, that is to understand, predict and control aerodynamic noise based on insights from the physical flow mechanisms. Prior to joining QMUL, he has worked as a Lecturer at University of Bristol, where he has been pivotal to securing national funding for a new testbed for electric propulsion systems. He is also actively involved in the research and development of next-generation electric aircrafts.