Research
Our work spans the investigation of aerodynamic flows near surfaces, flow-induced noise and control of these types of flows. With a sound understanding of the aero-dynamic and/or acoustic performance gain of subsystems (e.g., surfaces, bluff bodies, jets, rotors), our goal is to contribute to the design of future, more efficient and sustainable transport vehicles.
We utilise 1) experimental techniques in fluids & acoustics, 2) our experimental facilities and 3) state-of-the-art data processing.
Wall-turbulence & control
Research topics include:
Passive flow control with permeable surface treatments
Real-time active flow control of large-scale structures
Drag reduction applications in ZPG boundary layers
Separation delay applications in APG boundary layers
High-Reynolds-number wall-bounded turbulence
Predictive models for statistics of wall-turbulence
Flow separation & control
Research topics include:
Flow separation with upstream TBL influence
Active control using unsteady fluidic vortex generators
Low-fidelity representation of unsteady flow dynamics
Jet aeroacoustics
Research topics include:
(supersonic) jet noise of heated and unheated jet flows
nonlinear acoustic propagation and acoustic waveform distortion (related to scaling from laboratory to full-scale systems)
Acoustic shocks, crackle and noise perception
Predictive jet noise modeling
Passive and active noise control methods
Rotor acoustics
Research topics include:
Acoustic beating/modulation in sound fields of small rotors
Rotor noise shielding and integration
Aerodynamics of ducted rotor systems
Near-field aeroacoustic measurements
High-area-ratio nozzles
Research topics include:
Transient operation of overexanded nozzle flows
Shock wave boundary layer interaction in supersonic nozzles
Unsteady vibro-acoustic loads of nozzles
