Search Results - "Weerasuriya, A"

Adopting ‘lift-up’ building design to improve the surrounding pedestrian-level wind environment by Tse, K.T., Zhang, Xuelin, Weerasuriya, A.U., Li, S.W., Kwok, K.C.S., Mak, Cheuk Ming, Niu, Jianlei

“…Modern megacities are teeming with closely-spaced tall buildings, which limit air circulation at the pedestrian level. The resultant lack of air circulation…”
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A wind tunnel study of effects of twisted wind flows on the pedestrian-level wind field in an urban environment by Weerasuriya, A.U., Tse, K.T., Zhang, Xuelin, Li, S.W.

“…The influence of twisted wind flows on the pedestrian-level wind (PLW) field of an urban area was evaluated by testing a typical urban site (Tsuen Wan, Hong…”
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New inflow boundary conditions for modeling twisted wind profiles in CFD simulation for evaluating the pedestrian-level wind field near an isolated building by Weerasuriya, A.U., Hu, Z.Z., Zhang, X.L., Tse, K.T., Li, S., Chan, P.W.

“…The hilly topography of Hong Kong influences oncoming winds and gradually changes their wind directions along the profiles' height. The vertical variation in…”
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CFD simulation of natural ventilation of a generic building in various incident wind directions: Comparison of turbulence modelling, evaluation methods, and ventilation mechanisms by Zhang, Xuelin, Weerasuriya, A.U., Tse, K.T.

“…•Single-sided and cross- ventilations are evaluated using RANS and LES simulations.•LES accurately models the wind fields while RANS with RLZ has satisfactory…”
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Evaluation of pedestrian wind comfort near ‘lift-up’ buildings with different aspect ratios and central core modifications by Zhang, Xuelin, Tse, K.T., Weerasuriya, A.U., Li, S.W., Kwok, K.C.S., Mak, Cheuk Ming, Niu, Jianlei, Lin, Zhang

“…Owing to the void space at lower heights, lift-up buildings have high building permeability at ground level and subsequently improve the air circulation in…”
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A novel structure for online surgical undergraduate teaching during the COVID-19 pandemic by Chandrasinghe, P C, Siriwardana, R C, Kumarage, S K, Munasinghe, B N L, Weerasuriya, A, Tillakaratne, S, Pinto, D, Gunathilake, B, Fernando, F R

“…The Covid-19 pandemic necessitated the delivery of online higher education. Online learning is a novel experience for medical education in Sri Lanka. A novel…”
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RANS simulation of near-field dispersion of reactive air pollutants by Weerasuriya, A.U., Zhang, Xuelin, Tse, K.T., Liu, Chun-Ho, Kwok, Kenny C.S.

“…In conventional modeling of air pollution dispersion, pollutants are treated as passive scalars or inert species even though most of them are chemically…”
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Pedestrian-level wind environment near a super-tall building with unconventional configurations in a regular urban area by Zhang, Xuelin, Weerasuriya, A. U., Lu, Bin, Tse, K. T., Liu, Chun Ho, Tamura, Yukio

“…Unconventional configurations of tall buildings are noticeably different from their counterpart of traditional building designs but nevertheless, the…”
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Simulation of twisted wind flows in a boundary layer wind tunnel for pedestrian-level wind tunnel tests by Tse, K.T., Weerasuriya, A.U., Kwok, K.C.S.

“…Topography-induced twisted wind flows are frequently observed in Hong Kong due to the abundance existence of mountains. Observed twisted wind profiles are with…”
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Physics-based, data-driven approach for predicting natural ventilation of residential high-rise buildings by Gan, Vincent J. L., Wang, Boyu, Chan, C. M., Weerasuriya, A. U., Cheng, Jack C. P.

“…Natural ventilation is particularly important for residential high-rise buildings as it maintains indoor human comfort without incurring the energy demands…”
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Integrating twisted wind profiles to Air Ventilation Assessment (AVA): The current status by Weerasuriya, A.U., Tse, K.T., Zhang, Xuelin, Kwok, K.C.S.

“…Twisted wind flows generated by the complex terrain of Hong Kong induce two types of complication to Air Ventilation Assessment (AVA), first, imposing a false…”
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Numerical investigation of the effects of environmental conditions, droplet size, and social distance on interpersonal droplet transmission in a deep urban street canyon by Fan, Xiaodan, Zhang, Xuelin, Hang, Jian, Weerasuriya, A. U.

“…This study investigated the interpersonal droplet transmission between a healthy and an infected person in a deep and narrow street canyon using Computational…”
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Equivalent wind incidence angle method: A new technique to integrate the effects of twisted wind flows to AVA by Weerasuriya, A.U., Tse, K.T., Zhang, Xuelin, Kwok, K.C.S.

“…This paper presents a novel and cost-effective method to replicate modified pedestrian level wind (PLW) fields in twisted winds using a conventional wind…”
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Cross-ventilation of a generic building with various configurations of external and internal openings by Zhang, Xuelin, Weerasuriya, A.U., Wang, Jiayao, Li, Cruz Y., Chen, Zengshun, Tse, K.T., Hang, Jian

“…Cross-ventilation is the most effective mode of wind-driven natural ventilation but completely depends on the external openings and internal layout. This study…”
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A holistic framework to utilize natural ventilation to optimize energy performance of residential high-rise buildings by Weerasuriya, A.U., Zhang, Xuelin, Gan, Vincent J.L., Tan, Yi

“…A novel holistic framework was established using Building Information Modelling (BIM) to estimate accurately the potential of natural ventilation of…”
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Wind profile observations in tropical cyclone events using wind-profilers and doppler SODARs by Tse, K.T., Li, S.W., Chan, P.W., Mok, H.Y., Weerasuriya, A.U.

“…Since the mean wind profile in the tropical cyclone boundary layer is important in both the fields of meteorology and wind engineering, the wind measurements…”
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Performance evaluation of population-based metaheuristic algorithms and decision-making for multi-objective optimization of building design by Weerasuriya, A.U., Zhang, Xuelin, Wang, Jiayao, Lu, Bin, Tse, K.T., Liu, Chun-Ho

“…Optimization algorithms and decision-making techniques are major components of multi-objective optimization. This study evaluated the performance of…”
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A Gaussian Process-Based emulator for modeling pedestrian-level wind field by Weerasuriya, A.U., Zhang, Xuelin, Lu, Bin, Tse, K.T., Liu, C.H.

“…Wind tunnel tests and computational fluid dynamics (CFD) simulations remain the main modeling techniques in wind engineering despite being expensive,…”
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Wind direction field under the influence of topography, part I: A descriptive model by Weerasuriya, A U, Hu, Z Z, Li, S W, Tse, K T

“…In both structural and environmental wind engineering, the vertical variation of wind direction is important as it impacts both the torsional response of the…”
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Estimation of turbulence intensities under strong wind conditions via turbulent kinetic energy dissipation rates by Li, S.W., Tse, K.T., Weerasuriya, A.U., Chan, P.W.

“…The turbulence intensity, defined as the standard deviation of the longitudinal wind speeds divided by the mean wind velocity, is one of the important…”
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