Professor Kenny Kwok
People_

Professor Kenny Kwok

Professor Emeritus
School of Civil Engineering
Professor Kenny Kwok

Since obtaining his PhD in wind engineering in 1978 from Monash University, Professor Kenny Kwok has made significant and sustained contributions to research and professional practice in wind engineering, structural dynamics, vibration control, human perception of motion, and environmental fluid mechanics, particularly with respect to the dynamic behaviour of tall buildings and flexible structures in strong winds. Professor Kwok’s research focuses on fundamental aspects of building aerodynamics and wind-structure-occupant-damper interactions, and their practical applications to real life situations. Professor Kwok rejoined the University of Sydney in 2017.

When wind encounters obstacles – whether natural such as forests or human-made such as buildings – wake and vortices are generated, with the disturbed wind characterised by highly turbulent flow and with rapidly changing magnitude and direction. This phenomenon can have serious safety and health implications, as it can result in building and infrastructure damage, widespread dispersal of airborne diseases and pollutants and other issues. Professor Kenny Kwok’s research seeks to better understand the interactions between wind and obstacles, in order to mitigate such adverse effects.

“Turbulent winds can have profound effects on us and our environment. The current outbreak of COVID-19 is a timely reminder of the dangers posed by the spread of airborne contaminants. Previous research of mine has investigated the role of wind behaviour in the spread of disease among high-rise buildings in a densely populated residential housing estate in Hong Kong during the worldwide outbreak of Severe Acute Respiratory Syndrome (SARS) in 2002–2003 – the results of which are also applicable to other airborne pathogens.

“The 2009 Black Saturday bushfires generated bushfire-enhanced winds that caused significant damage to homes and infrastructure, as well as to forests. Some of my current research focuses on the interactions of these types of winds with buildings and other obstacles, with a view to building this understanding into future design and planning.

“Another phenomenon I am currently investigating is exactly how prolonged exposure to low-frequency, low-acceleration, wind-induced motion in high-rise buildings can cause motion sickness–like symptoms in some occupants, adversely affecting their wellbeing and work performance. To this end I have designed and developed unique simulators to research these neurophysiological and psychological responses, with the ultimate goal of mitigating their adverse effects.

“These are just some of the interactions between turbulent winds and the obstacles in their environment that I explore in my research.”


Memberships

  • Fellow of Hong Kong Institution of Engineers (HKIE)
  • Fellow of the Institution of Engineers Australia (FIEAust)
  • Chartered Professional Engineer (CPEng)
  • National Engineering Register (NER)
  • Asia-Pacific Economic Co-operation (APEC) Engineer
  • International Professional Engineer (IntPE(Aus))

Standards Committees

  • Standards Australia Technical Committee BD002-06: Wind Actions (Member 1982 to 1996, 2008 to Present)
  • International Organization for Standardization (ISO) Working Group TC98/SC2/WG12 (Convenor)
  • Standards Australia Committee BD/73 (Member 1991 to 1995)

2019: International Association for Wind Engineering Senior Award and Alan G Davenport Medal

2019: American Society of Civil Engineers Jack E Cermak Medal

2018: Honorary Member of the Romanian Association for Wind Engineering

2004: Life Member of the Australasian Wind Engineering Society

Clean energy, Materials and structures

Publications

Books

  • Kwok, K., Burton, M., Abdelrazaq, A. (2015). Wind-Induced Motion of Tall Buildings: Designing for Habitability. USA: American Society of Civil Engineers (ASCE). [More Information]
  • Holmes, J., Kwok, K., Ginger, J. (2012). Wind Loading Handbook for Australia and New Zealand: background to AS/NZS1170.2 wind actions. Sydney: Australasian Wind Engineering Society.

Book Chapters

  • Álvarez, A., Nieto, F., Kwok, K., Hernández, S. (2021). Square cylinder under different turbulent intensity conditions by means of small-scale turbulence. In Santiago Hernandez, Peter Vorobieff (Eds.), Advances in Fluid Dynamics with Emphasis on Multiphase and Complex Flow, (pp. 103-114). Southampton: Wit Press. [More Information]
  • Eftekharian, E., Ghodrat, M., He, Y., Ong, R., Kwok, K., Samali, B. (2020). Numerical Simulation of the Effect of Terrain Slope on Fire-Wind Enhancement. In Chien Ming Wang, Johnny C. M. Ho, Sritawat Kitipornchai (Eds.), ACMSM25 Proceedings of the 25th Australasian Conference on Mechanics of Structures and Materials, (pp. 1087-1096). Singapore: Springer. [More Information]
  • Kwok, K. (2013). Human Perception and Tolerance of Wind-Induced Building Motion. In Y. Tamura, A. Kareem (Eds.), Advanced Structural Wind Engineering, (pp. 325-345). Tokyo: Springer. [More Information]

Journals

  • Zhang, X., Weerasuriya, A., Perera, U., Wang, J., Li, C., Tse, K., Kwok, K. (2024). Effects of internal wall design on cross-ventilation of an isolated building. Physics of Fluids, 36(5), 057130. [More Information]
  • Liang, G., Cui, D., Mak, C., Kwok, K. (2024). Evaluating the effects of envelope features on the pollutant distribution and ventilation performance by CFD simulations and scaled outdoor experiments. Building and Environment, 264, 111947. [More Information]
  • Liu, J., Tse, K., Hu, G., Liu, C., Zhang, B., Kwok, K. (2024). Exploring aerodynamics of a rectangular cylinder using flow field and surface pressure synchronized testing technique. Physics of Fluids, 36(8), 085174. [More Information]

Conferences

  • Hu, G., Tse, K., Kwok, K. (2017). Aerodynamic modification on slender structures for enhancing wind energy harvesting. 7th Europe Africa Conference on Wind Engineering, Belgium.
  • Zhang, X., Weerasuriya, A., Tim, K., Kwok, K., Mak, C., Niu, J. (2017). Evaluation of pedestrian comfort level near 'lift-up' buildings with different heights and widths. 7th Europe Africa Conference on Wind Engineering, Belgium.
  • Lau, I., Chan, C., Huang, M., Kwok, K. (2016). Bushfire-induced winds and their impacts on buildings. 13th International Conference on Wind Engineering, Amsterdam: Dutch-Flemish Wind Engineering Association.

2024

  • Zhang, X., Weerasuriya, A., Perera, U., Wang, J., Li, C., Tse, K., Kwok, K. (2024). Effects of internal wall design on cross-ventilation of an isolated building. Physics of Fluids, 36(5), 057130. [More Information]
  • Liang, G., Cui, D., Mak, C., Kwok, K. (2024). Evaluating the effects of envelope features on the pollutant distribution and ventilation performance by CFD simulations and scaled outdoor experiments. Building and Environment, 264, 111947. [More Information]
  • Liu, J., Tse, K., Hu, G., Liu, C., Zhang, B., Kwok, K. (2024). Exploring aerodynamics of a rectangular cylinder using flow field and surface pressure synchronized testing technique. Physics of Fluids, 36(8), 085174. [More Information]

2023

  • Álvarez, A., Nieto, F., Kwok, K., Hernández, S. (2023). A simplified CFD approach for bluff-body aerodynamics under small scale free stream turbulent flow. Journal of Wind Engineering and Industrial Aerodynamics, 241, 105500. [More Information]
  • Gao, H., Liu, J., Lin, P., Hu, G., Patruno, L., Xiao, Y., Tse, K., Kwok, K. (2023). An optimal sensor placement scheme for wind flow and pressure field monitoring. Building and Environment, 244. [More Information]
  • Kwok, K., Hu, G. (2023). Wind energy system for buildings in an urban environment. Journal of Wind Engineering and Industrial Aerodynamics, 234. [More Information]

2022

  • Guo, G., Yu, Y., Kwok, K., Zhang, Y. (2022). Air pollutant dispersion around high-rise buildings due to roof emissions. Building and Environment, 219. [More Information]
  • Keshavarzian, E., Kwok, K., Dong, K., Chauhan, K., Zhang, Y. (2022). An experimental Investigation of stagnant air pollution dispersion around a building in a turbulent flow. Building and Environment, 224. [More Information]
  • Cui, D., Zhang, Y., Li, X., Yuan, L., Mak, C., Kwok, K. (2022). Effects of different vertical façade greenery systems on pedestrian thermal comfort in deep street canyons. Urban Forestry and Urban Greening, 72. [More Information]

2021

  • Zhang, S., Kwok, K., Liu, H., Jiang, Y., Dong, K., Wang, B. (2021). A CFD study of wind assessment in urban topology with complex wind flow. Sustainable Cities and Society, 71, 103006. [More Information]
  • Álvarez, A., Nieto, F., Kwok, K., Hernández, S. (2021). A computational study on the aerodynamics of a twin-box bridge with a focus on the spanwise features. Journal of Wind Engineering and Industrial Aerodynamics, 209, 104465. [More Information]
  • Zhang, Y., Yu, Y., Kwok, K., Yan, F. (2021). CFD-based analysis of urban haze-fog dispersion—A preliminary study. Building Simulation, 14(2), 365-375. [More Information]

2020

  • Eftekharian, E., Ghodrat, M., He, Y., Ong, R., Kwok, K., Zhao, M. (2020). Correlations for fire-wind enhancement flow characteristics based on LES simulations. International Journal of Heat and Fluid Flow, 82, 1-17. [More Information]
  • Hu, G., Liu, L., Tao, D., Song, J., Tse, K., Kwok, K. (2020). Deep learning-based investigation of wind pressures on tall building under interference effects. Journal of Wind Engineering and Industrial Aerodynamics, 201, 104138. [More Information]
  • Keshavarzian, E., Jin, R., Dong, K., Kwok, K., Zhang, Y., Zhao, M. (2020). Effect of pollutant source location on air pollutant dispersion around a high-rise building. Applied Mathematical Modelling, 81, 582-602. [More Information]

2019

  • Jafari, S., Kwok, K., Kosasih, B., Zhao, M. (2019). Aerodynamic analysis of a stator-augmented linear cascade wind turbine. Wind Energy, 22(8), 1148-1163. [More Information]
  • Hassanli, S., Chauhan, K., Zhao, M., Kwok, K. (2019). Application of through-building openings for wind energy harvesting in built environment. Journal of Wind Engineering and Industrial Aerodynamics, 184, 445-455. [More Information]
  • Jafari, S., Hassanli, S., Kwok, K., Safaei, F., Kosasih, B., Zhao, M. (2019). Building integration of stator-augmented PowerWindow, a linear cascade wind turbine. Energy Science & Engineering, 7(2), 581-598. [More Information]

2018

  • Jafari, S., Kwok, K., Safaei, F., Kosasih, B. (2018). Aerodynamic analysis of a linear cascade wind turbine. Wind Energy, 21(11), 1141-1154. [More Information]
  • Chen, Z., Tse, T., Kwok, K., Kareem, A. (2018). Aerodynamic damping of inclined slender prisms. Journal of Wind Engineering and Industrial Aerodynamics, 177, 79-91. [More Information]
  • Alvarez, A., Nieto, F., Kwok, K., Hernandez, S. (2018). Aerodynamic performance of twin-box decks: A parametric study on gap width effects based on validated 2D URANS simulations. Journal of Wind Engineering and Industrial Aerodynamics, 182, 202-221. [More Information]

2017

  • Tse, K., Zhang, X., Weerasuriya, A., Li, S., Kwok, K., Mak, C., Niu, J. (2017). Adopting 'lift-up' building design to improve the surrounding pedestrian-level wind environment. Building and Environment, 117, 154-165. [More Information]
  • Hu, G., Tse, K., Kwok, K. (2017). Aerodynamic modification on slender structures for enhancing wind energy harvesting. 7th Europe Africa Conference on Wind Engineering, Belgium.
  • Yu, Y., Kwok, K., Liu, X., Zhang, Y. (2017). Air pollutant dispersion around high-rise buildings under different angles of wind incidence. Journal of Wind Engineering and Industrial Aerodynamics, 167, 51-61. [More Information]

2016

  • Lamb, S., Kwok, K. (2016). A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Applied Ergonomics, 52, 104-111. [More Information]
  • Hu, G., Tse, K., Kwok, K. (2016). Aerodynamic mechanisms of galloping of an inclined square cylinder. Journal of Wind Engineering and Industrial Aerodynamics, 148, 6-17. [More Information]
  • Hu, G., Tse, K., Kwok, K., Song, J., Lyu, Y. (2016). Aerodynamic modification to a circular cylinder to enhance the piezoelectric wind energy harvesting. Applied Physics Letters, 109(19), 1-5. [More Information]

2015

  • Niu, J., Liu, J., Lee, T., Lin, Z., Mak, C., Tse, K., Tang, B., Kwok, K. (2015). A new method to assess spatial variations of outdoor thermal comfort: Onsite monitoring results and implications for precinct planning. Building and Environment, 91, 263-270. [More Information]
  • Zhang, Y., Kwok, K., Liu, X., Niu, J. (2015). Air pollutant dispersion around a high-rise building-CFD simulation and experimental validation. 14th International Conference on Wind Engineering, Japan: International Association for Wind Engineering (IAWE).
  • Zhang, Y., Kwok, K., Liu, X., Niu, J. (2015). Air pollutant dispersion around a high-rise building: CFD simulation and experimental validation. 14th International Conference on Wind Engineering, Japan: International Association for Wind Engineering (IAWE).

2014

  • Lamb, S., Kwok, K., Walton, D. (2014). A longitudinal field study of the effects of wind-induced building motion on occupant wellbeing and work performance. Journal of Wind Engineering and Industrial Aerodynamics, 133, 39-51. [More Information]
  • Griffin, D., Mirza, O., Kwok, K., Kaewunruen, S. (2014). Composite slabs for railway construction and maintenance: a mechanistic review. IES Journal Part A: Civil and Structural Engineering, 7(4), 243-262. [More Information]
  • Cui, D., Mak, C., Kwok, K. (2014). Effects of building configuration on indoor pollutant transportation of naturally ventilated buildings. International Symposium on Computational Wind Engineering, Germany.

2013

  • Kwok, K. (2013). Behaviour of tall buildings and structures in strong winds: Dynamic properties, response characteristics and vibration mitigation. Australian Journal of Structural Engineering, 14(2), 177-192. [More Information]
  • Cui, D., Mak, C., Kwok, K. (2013). Effects of building configuration on ventilation performance of naturally-ventilated building. 16th Australasian Wind Engineering Society Workshop (AWES 2013), Brisbane: Australasian Wind Engineering Society.
  • Xia, Q., Liu, X., Niu, J., Kwok, K. (2013). Effects of building lift-up design on pedestrian level wind environment. 16th Australasian Wind Engineering Society Workshop (AWES 2013), Brisbane: Australasian Wind Engineering Society.

2012

  • Kwok, K., Wong, K. (2012). A dual-axis tall building motion simulator to investigate effects of wind-induced building motions on human. 15th Australasian Wind Engineering Society Workshop (AWES 2012), Australia: Australasian Wind Engineering Society.
  • Tse, K., Kwok, K. (2012). Acceleration responses of square cross-section tall buildings with aerodynamic treatments. International Conference on Performance-based and Life-cycle Structural Engineering, Hong Kong.
  • Kwok, K., Tsang, R., Tse, K., Wong, K. (2012). Air Ventilation Assessment (AVA) For Building Developments. 7th ICCSM International Congress of Croation Society of Mechanics, Croatia.

2011

  • Huang, M., Lau, I., Chan, C., Kwok, K., Li, G. (2011). A hybrid RANS and kinematic simulation of wind load effects on full-scale tall buildings. Journal of Wind Engineering and Industrial Aerodynamics, 99(11), 1126-1138. [More Information]
  • Walton, D., Lamb, S., Kwok, K. (2011). A review of two theories of motion sickness and their implications for tall building motion sway. Wind and Structures, 14(6), 499-515. [More Information]
  • Liu, X., Niu, J., Kwok, K. (2011). Analysis of concentration fluctuations in gas dispersion around high-rise building for different incident wind directions. Journal of Hazardous Materials, 192(3), 1623-1632. [More Information]

Selected Grants

2016

  • Bushfire-enhanced wind and its effects on buildings, Kwok K, He Y, Australian Research Council (ARC)/Discovery Projects (DP)

2014

  • Adverse effects of sopite syndrome on occupants in wind-excited buildings, Macefield V, Kwok K, Walton D, Australian Research Council (ARC)/Discovery Projects (DP)

FOR Codes

0905 - Civil Engineering
1202 - Building