Weiqi Sun

Research Project Title: Boundary layers with embedded streamwise vortices

Research Project Summary:
Boundary layer embedded with streamwise vortices evolves as a secondary flow, which is a prevalent phenomenon in many aerodynamics and hydrodynamic applications. This project will investigate how boundary layer with this perturbation evolve in the downstream direction and respond to the pressure gradient through experimental (high-resolution PIV) and numerical techniques such as LES (Large Eddy Simulation).

Student Profile:
I achieved my master degree in Zhejiang University, majoring in fluid mechanics. I love observing, recording and exploring interesting flow phenomena in nature (e.g., the flight of dandelion). My research in my graduate stage focuses numerical simulation of evaporating and atomizing behavior of precursor droplets in plasma gas, especially addressing the relation between evaporation and atomization of droplets in the thermal flow field of plasma gas.

My research interest in the following PhD stage focuses on elucidating the role of the various complicated vortices in nature and industry, and uncovering the underlying physical mechanism behind them (e.g., the leading-edge vortex and the separated vortex ring utilized by wind-dispersed seeds).

I see this joint project as a continual opportunity of my long-term research goal on more directly exploring significant flow phenomenon in nature and industrial applications (often involved with complicated vortex flow) with accurately numerical too, such as DNS (Direct Numerical Simulation), and reliable experimental observation.

Project Duration:  3.5 – 4 years

Supervisors:
The University of Melbourne: Joseph Klewicki and Jimmy Philip

RWTH Aachen: Wolfgang Schroeder, Matthias Meinke, and Michael Klaas