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01_Randolph

TEAM
MEMBERS

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Randolph, Chi Kin LEUNG

Associate Professor

Department of Mechanical Engineering,

The Hong Kong Polytechnic University

​

 

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RANDOLPH

Associate Professor 

randolph.leung@polyu.edu.hk

Area of Specialisation 

  • Flow-induced sound and structural vibration

  • Computational aeroacoustics

  • Product noise and vibration design and control

  • Urban environmental noise and tyre/road noise interaction

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Introduction

  • PhD focusing on vortex interaction noise modeling for jet noise prediction of The University of Hong Kong,

  • Postdoctoral research in acoustic resonance of marine gas turbine exhaust system at the Department of Engineering, University of Cambridge and flow- induced vibration fatigue design of turbine blade at the Department of Mechanical Engineering, The Hong Kong Polytechnic University.

  • Moved to industry and took up a sound engineer position at Asia Pacific Development Center of Emerson Climate Technologies. 

  • Joined The Hong Kong Polytechnic University again and engaged in development research capability of computational aeroacoustics and high performance computing at the Department of Mechanical Engineering. 

Harris, Ka Heng FAN

Alumni

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Harris, Ka Heng FAN

Area of Specialization:

  • Fluid-structure interaction with elastic panel

  • Aeroacoustics in internal flow

  • Computational fluid dynamics 

  • Flow duct noise control

 

Introduction:

  • Research in the interaction problem of flow, acoustics, and thin flexible structure for quieting design with unsteady flow

  • Developed numerical coupling strategies for resolving the fluid-structure interaction problem with the space-time conservation element and solution element (CE/SE) method

  • Experience in internal flow and tyre/road noise measurements

  • Programming with C++ and Matlab

HARRIS

harris-ka-heng.fan@polyu.edu.hk

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PhD in Mechanical Engineering

Garret,  Chi Yan LAM​
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Garret,  Chi Yan LAM​

Area of Specialization

  • Airfoil noise and aerodynamics sound research (aeroacoustics) in duct flow

  • Aeroacoustic-structural interaction

  • Acoustic liner for noise mitigation

  • High performance computing (HPC) with Conservation Element and Solution Element (CE/SE) method

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Introduction

  • Working as a Research Fellow in CAESI Team

  • Experienced research professional with 10+ years of experience in aero-dynamics sound research related to airfoils and duct

  • Investigating Acoustic metamaterial for noise reduction

  • Developing HPC platform for aerodynamics and acoustics simulation.

  • Executing industrial consulting project related to sound and vibration

  • Skillful software developer with C++, OpenMP and Message Passing Interface (MPI)

GARRET

garret.lam.hk@connect.polyu.hk

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PhD in Building Services Engineering

Dong Fang LI
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Area of Specialization

  • Environmental noise and Close-Proximity (CPX) method

  • Room acoustics

  • Numerical simulation (CAD/CAE)

  • Absorption materials

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Introduction

  • Research in the Close-Proximity (CPX) method within an anechoic enclosure on the tyre/road noise measurement.

  • Developed numerical simulation for predicting experimental situations in enclosed spaces with high fidelity.

  • Investigating the sound source, absorption materials and their interactions on acoustic properties in a small enclosure.

  • Developing sound power measurement method in a semi-anechoic enclosure.

DONGFANG

li.df.li@connect.polyu.hk

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PhD in Mechanical Engineering

Muhammad Irsalan ARIF
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Area of Specialization

  • Fluid-structure interaction

  • Aeroacoustics of external flows

  • Computational fluid dynamics 

  • Airfoil tonal noise control

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Introduction

  • Investigating fluid-structure interaction of elastic panel(s) over an airfoil.

  • Development of a novel airfoil noise reduction method using structural coupling

  • Numerical simulations with Conservation Element and Solution Element (CE/SE) method for airfoil tonal noise reduction using fluid-structure interactions

  • Programming with C++ and Matlab

ARIF

PhD in Mechanical Engineering

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irsalan.arif@connect.poly.hk

George, Ruoyang HOU
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Alumni

Research Interests

  • Direct Aeroacoustic Simulation (DAS)

  • Numerical modeling of porous liner

  • Space-time Conservation and Solution Element (CE/SE) Method

  • Supersonic flow, Shock waves

 

Introduction

  • Developed porous modeling for in-house CE/SE Computational AeroAcoustics (CAA) code in C++ programming language

  • Investigated the flow and acoustic interaction in porous liner

  • Working at The Aviation Services Research Centre (ASRC) which is established by The Hong Kong Polytechnic University (PolyU) in collaboration with Boeing

  • Corporate on the Cold Spraying Material Deposition (HAESL)

GEORGE

geroge.hou@connect.polyu.hk

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MPhil in Mechanical Engineering

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Alumni

Yat Ken, LAM
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KEN

yat.ken.lam@connect.polyu.hk

MPhil in Mechanical Engineering

Area of Specialization

  • Environmental noise

  • Close-Proximity (CPX) method

 

Introduction

  • Research in the Close-Proximity (CPX) method within an anechoic enclosure on the tyre/road noise measurement.

  • Developing sound power measurement method in a semi-anechoic enclosure.

Racer, Ka Hei LAM 
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Alumni

Racer, Ka Hei LAM 

Area of Specialization:

  • Aeroacoustic Metamaterial Technology

  • Experimentation on internal flow acoustics

  • Computational fluid dynamics

 

Introduction:

  • Fabricated a liner prototype to be deployed in airflow duct systems, which possess a strong sound absorbing ability.

  • Designed a wind tunnel for the experimentation of the prototype, with peak flow speed at Mach 0.15 so to cover the majority flow speed range of ventilation systems;

  • Co-developed a C++ based numerical model for studying the aeroacoustic - structural interaction within the liner prototype;

  • Programming with NI LabView, C++ and Matlab;

  • Computer hardware configuring and servicing.

RACER

r.lam@connect.polyu.hk

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PhD in Mechanical Engineering 

Alumni

Horus, Y. H. CHAN
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Alumni

Horus, Y. H. CHAN

Area of Specialization

  • Aeroacoustics of internal and external flow

  • Room acoustics

  • Acoustic impedance modeling

  • Silencer design

  • Numerical Simulation (CFD & CAA)

  • Beamforming design

 

Introduction

  • Experienced researcher in aeroacoustics using numerical and experimental technique.

  • Acoustic source term estimation and the generated sound propagation analysis.

  • Physically realistic numerical solver development.

  • Engineering design and realization.

HORUS

yui.ho.chan.me@connect.polyu.hk

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PhD in Mechanical Engineering

Muhammad Rehan NASEER
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Area of Specialization:

  • Computational aeroacoustics

  • Aeroacoustics in cavity flows

  • Cavity noise control 

  • Fluid-structure interaction

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Introduction:

  • Research in the computational aeroacoustics of flow over the shallow and deep cavities

  • Cavity noise control using thin flexible structures

  • Complex fluid-structure interaction problems

REHAN

PhD Student in Mechanical Engineering

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rehan.naseer@connect.poly.hk

Sanjaya RAI
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Area of Specialization:

  • Computational aeroacoustics 

  • Fluid-structure interaction

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Introduction:

  • Bachelors in Mechanical Engineering (Hons) from The Hong Kong Polytechnic University

  • Working as a Research Assistant in the CAESI Team

  • Programming with Matlab

SANJAYA

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MSc in Mechanical Engineering

CAESI Team  COMPUTATIONAL AEROACOUSTIC-STRUCTURAL INTERACTION TEAM

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