Journal of Wind Engineering and Industrial Aerodynamics最新文献_第7页

Validation of urban airflow measurements through a combined field test and wind tunnel study 通过结合现场试验和风洞研究验证城市气流测量

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-08 DOI: 10.1016/j.jweia.2025.106155

Sean McTavish, Hali Barber, Alanna Wall

{"title":"Validation of urban airflow measurements through a combined field test and wind tunnel study","authors":"Sean McTavish, Hali Barber, Alanna Wall","doi":"10.1016/j.jweia.2025.106155","DOIUrl":"10.1016/j.jweia.2025.106155","url":null,"abstract":"<div><div>A combined field test and wind-tunnel study was conducted to support the ongoing development of operator guidance and recommendations for Remotely Piloted Aircraft Systems (RPAS) operations in urban airflows. The goal of the overall study was to acquire urban-airflow data in a real environment in order to validate equivalent airflow characteristics from model-scale testing. The field test was designed to measure urban airflow characteristics using anemometers mounted on a small RPAS. The RPAS was flown along various flight paths in downtown Montréal in 2023. Following the field test, airflow measurements were taken at the equivalent spatial locations in a wind tunnel using a 1:300-scale model of the same test site. Data-processing routines for the RPAS airflow measurements included accounting for the body-motion of the vehicle and applying custom calibration equations for the RPAS-mounted sonic anemometers. Comparing the RPAS and wind-tunnel measurements required a common coordinate system, a digital model of the city, and identification of compatible reference conditions. The distribution of mean flow speed and turbulence intensity from the field test compared well with the wind-tunnel results, including the shape of the distribution and location of the maxima. Additionally, the variation in flow characteristics along a flight path, such as mean flow speed and turbulence intensity, compared favourably with wind-tunnel results acquired at the same relative locations. This work demonstrates the suitability of model-scale testing for studying urban flow fields.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106155"},"PeriodicalIF":4.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two parallel cable trusses-supported photovoltaic system: Extreme wind-induced response and displacement-based gust response factors 两个平行缆索桁架支撑的光伏系统：极端风致响应和基于位移的阵风响应因子

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-07 DOI: 10.1016/j.jweia.2025.106157

Jingyao Li , Shihong Nie , Min Liu , Qingshan Yang , Kunpeng Guo

{"title":"Two parallel cable trusses-supported photovoltaic system: Extreme wind-induced response and displacement-based gust response factors","authors":"Jingyao Li , Shihong Nie , Min Liu , Qingshan Yang , Kunpeng Guo","doi":"10.1016/j.jweia.2025.106157","DOIUrl":"10.1016/j.jweia.2025.106157","url":null,"abstract":"<div><div>With the growth of the solar photovoltaic industry, cable-supported photovoltaic structures (CSPSs) have become a research focus. Gust response factor (GRF) quantifies the amplification of dynamic responses relative to mean wind responses and is crucial for designing. However, unified standards for determining the peak factor are absent, and GRFs vary widely across structural forms, necessitating focused studies on different CSPS types. This study investigates the wind-induced vibrations and GRFs of the two parallel cable trusses-supported photovoltaic systems, using tilt angle, turbulence intensity, and wind speed as variables. Displacement responses were examined by aeroelastic model tests in the wind fields with varying turbulence intensities, focusing on Gaussian or non-Gaussian properties. Peak factors were derived using the piecewise Hermite polynomial model to calculate extreme responses and GRFs. Analyses reveal that buffeting-dominated responses exhibit Gaussian characteristics, with skewness near 0, kurtosis near 3, and a peak factor around 3.9, while self-excited vibrations exhibit hardening non-Gaussian properties, with kurtosis around 1.5 and a peak factor below 2.5. Turbulence intensity, with a feature importance exceeding 0.8, is the dominant factor affecting GRFs. Empirical models incorporating turbulence intensity, wind speed, and tilt angle align well with experimental data, demonstrating engineering applicability.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106157"},"PeriodicalIF":4.2,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing cycling skinsuit design through an integrated wind-tunnel and CFD workflow 通过集成风洞和CFD工作流程优化自行车皮衣设计

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-04 DOI: 10.1016/j.jweia.2025.106154

Thijs van Druenen , Bert Blocken

{"title":"Optimizing cycling skinsuit design through an integrated wind-tunnel and CFD workflow","authors":"Thijs van Druenen , Bert Blocken","doi":"10.1016/j.jweia.2025.106154","DOIUrl":"10.1016/j.jweia.2025.106154","url":null,"abstract":"<div><div>This paper explores the use of computational fluid dynamics (CFD) in the design of cycling skinsuits with varying surface roughness. Traditional skinsuit design involves a complex and time-consuming process by wind tunnel experiments. CFD could potentially offer an alternative for predicting the performance and designing rider-specific skinsuits, though accurately modelling fabric surface roughness is challenging. The study characterizes skinsuit fabrics based on an equivalent sand-grain roughness height (k<sub>S</sub>) value derived from drag reduction measurements on cylinders covered with specific fabrics. Three skinsuits, created from these fabrics, are assessed on a full-scale cyclist mannequin. For two of the three suits, the calculated drag area is within 0.6 % of the wind tunnel (WT) results. In the case of the third suit, the deviation with the WT drag area is 1.6 %. The CFD simulations reveal valuable insights, such as the impact of including variable k<sub>S</sub> values on the location of flow separation, the local distribution of skin friction and pressure drag, and their effects on the near flow field. The agreement between WT and CFD results suggests the potential of CFD for designing aerodynamically optimized skinsuits for individual riders, while further research is recommended to refine and validate this approach.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106154"},"PeriodicalIF":4.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field measurement study on typhoon wind characteristics during strong wind periods 强风期台风风特征的野外测量研究

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-04 DOI: 10.1016/j.jweia.2025.106158

Muguang Liu , Kang Liu , Zhe Wang , Chunsheng Zhang , Zhuangning Xie

{"title":"Field measurement study on typhoon wind characteristics during strong wind periods","authors":"Muguang Liu , Kang Liu , Zhe Wang , Chunsheng Zhang , Zhuangning Xie","doi":"10.1016/j.jweia.2025.106158","DOIUrl":"10.1016/j.jweia.2025.106158","url":null,"abstract":"<div><div>Based on the wind records of seven typhoons observed from 356-m-high Shenzhen Meteorological Gradient Tower (SZMGT) between 2017 and 2023, the differences and similarities of wind characteristics during strong wind periods for these typhoons are explored. The wind parameters, involving mean wind profile, turbulence intensity, turbulence integral scale, as well as gust and peak factors are presented and discussed. Moreover, Gaussianity, vertical coherence, and power spectral density are investigated. The results indicate that the strongest 10-min wind profiles for seven typhoons generally align with those recommended in codes and standards for suburban terrain at SZMGT, while the observed turbulence intensities during typhoons are markedly larger than those given for suburban terrain. The dispersion of turbulence integral scales for different typhoon events is more pronounced than that of turbulence intensity, however, a good consistency is observed in gust factors for seven typhoons. Compared with the Solari spectrum, the von Kármán spectrum can better describe the observed power spectra of longitudinal/lateral/vertical fluctuating wind speeds during strong wind periods. Furthermore, the fluctuating wind speeds overall show reasonable agreement with the Gaussian distribution. The outcome of this study is expected to provide a useful reference for wind-resistant design of building structures in typhoon regions.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106158"},"PeriodicalIF":4.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LES study on inversion-capped atmospheric boundary layer flows over steep topography considering the effects of free-atmosphere lapse rate 考虑自由大气递减率影响的陡地形上逆温封顶大气边界层流动的LES研究

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-03 DOI: 10.1016/j.jweia.2025.106131

Tong Zhou, Takeshi Ishihara

{"title":"LES study on inversion-capped atmospheric boundary layer flows over steep topography considering the effects of free-atmosphere lapse rate","authors":"Tong Zhou, Takeshi Ishihara","doi":"10.1016/j.jweia.2025.106131","DOIUrl":"10.1016/j.jweia.2025.106131","url":null,"abstract":"<div><div>The capping temperature inversion is a common atmospheric phenomenon that strongly influences the mean flow and turbulence structures within the atmospheric boundary layer (ABL). In this study, full-scale large eddy simulations are utilized to shed light on the characteristics of inversion-capped ABL flows over steep hilly terrain. As atmospheric stratification increases, the vertical wind veer becomes stronger, creating asymmetric flow patterns in the hill wake, and the buoyancy force acts to resist turbulent wake motions. In contrast to the conventionally neutral boundary layer (CNBL) and the convective boundary layer (CBL) cases, the stable boundary layer (SBL) exhibits pronounced flow acceleration at the hilltop and a faster wake recovery on the lee side of the hill. Based on the quadrant analysis, flow separation and vortex shedding are found to enhance organized motions downstream of the hill crest. In the wake region, sweep and ejection motions are identified at different heights. Furthermore, a wind speed prediction approach is developed for inversion-capped ABL flows over steep hilly terrain under both stable and unstable stratifications. The proposed approach incorporates the effect of the free-atmosphere lapse rate. Overall, it shows satisfactory agreement in predicting mean wind speed profiles over steep hills under both CBL and SBL conditions. The overestimation of mean wind speed at the hilltop in the SBL case can be corrected using the <span><math><mrow><mi>σ</mi></mrow></math></span> coordinate transformation technique.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106131"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating peak pressure coefficients for high-rise buildings: LES-based evaluation of Gumbel and XIMIS methods 高层建筑峰值压力系数估算：基于les的Gumbel和XIMIS方法评价

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-03 DOI: 10.1016/j.jweia.2025.106161

Latife Atar, Jack K. Wong, Oya Mercan

{"title":"Estimating peak pressure coefficients for high-rise buildings: LES-based evaluation of Gumbel and XIMIS methods","authors":"Latife Atar, Jack K. Wong, Oya Mercan","doi":"10.1016/j.jweia.2025.106161","DOIUrl":"10.1016/j.jweia.2025.106161","url":null,"abstract":"<div><div>Accurately estimating peak wind pressures is essential for the safe and cost-effective design of high-rise buildings. This study evaluates LES-based peak pressure coefficient predictions for high-rise buildings, using 1-h equivalent full-scale wind tunnel data from Tokyo Polytechnic University as a reference. The research examines the effects of segment durations, number of segments, total EFS durations, and wall-specific error analysis and prediction uncertainties in LES. The Cook-Mayne conversion standardized shorter segments to a 60-min EFS duration but introduced prediction discrepancies, particularly for negative peak pressures. Findings indicate that longer total durations with moderate segment lengths yield reliable maximum pressure predictions, while shorter segment durations are more effective for minimum pressures. Wall-specific analysis reveals greater uncertainties near the ground on side and leeward walls due to recirculation and separation, and at higher elevations on the windward wall from stagnation effects. The XIMIS method yields peak estimates comparable to the Gumbel method, effectively handles limited data. While LES shows strong potential for capturing peak pressures, its accuracy in Gumbel based analysis is sensitive to segment and total simulation durations. In contrast, XIMIS offers consistent results without need for segmentation, making it particularly valuable when data availability is limited.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106161"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multiscale framework for the risk analysis of urban building envelope systems subject to windborne debris considering the directional effect of tropical cyclones 考虑热带气旋方向性影响的城市建筑围护结构风载碎片风险分析的多尺度框架

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-03 DOI: 10.1016/j.jweia.2025.106160

Xu Hong , Xi-Zhong Cui , Meng-Ze Lyu , Fan Kong

{"title":"A multiscale framework for the risk analysis of urban building envelope systems subject to windborne debris considering the directional effect of tropical cyclones","authors":"Xu Hong , Xi-Zhong Cui , Meng-Ze Lyu , Fan Kong","doi":"10.1016/j.jweia.2025.106160","DOIUrl":"10.1016/j.jweia.2025.106160","url":null,"abstract":"<div><div>Windborne debris poses a significant threat to the envelope systems of urban high-rise buildings during tropical cyclones (TCs). The time varying feature of TC surface wind makes it inadequate to ignore the wind direction effect in the analysis of the windborne debris risk to envelop systems. To address this issue, this paper proposes an integrated framework that spans the entire process from TC generation based on physical stochastic sources, to local urban wind environment simulations, and to detailed debris flight trajectory modeling and impact fragility analysis of envelope systems. This framework establishes a multiscale perspective for analyzing the uncertainty propagation associated with the windborne debris risk from regional meteorological scale to local urban scale and debris scale. First, the joint probability distribution of TC maximum wind speed and surface wind direction is derived based on TC wind hazard assessment technique. Next, the urban wind field is simulated by a computational fluid dynamics (CFD) model, and the debris flight trajectory in the local wind environment is simulated by a rigid-body dynamical model. The urban wind field model and debris flight trajectory model are then used to estimate the fragility of the envelope system given specific wind speeds and directions. Finally, the annual occurrence rate that the number of damaged glazing units exceeds certain thresholds is derived using the total probability theorem. A 100-m high-rise building located in Shanghai is used to illustrate the application of the proposed framework. A detailed analysis of the illustrative application is presented and the results show that ignoring wind direction effects may overestimate the risk of windborne debris to envelope systems.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106160"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical assessment of train slipstream in tunnels: Stochastic analysis from CFD data 隧道中列车滑流的数值计算：CFD数据的随机分析

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-03 DOI: 10.1016/j.jweia.2025.106130

S. Negri , G. Tomasini , D. Rocchi , P. Schito , D. Soper , H. Hemida

{"title":"Numerical assessment of train slipstream in tunnels: Stochastic analysis from CFD data","authors":"S. Negri , G. Tomasini , D. Rocchi , P. Schito , D. Soper , H. Hemida","doi":"10.1016/j.jweia.2025.106130","DOIUrl":"10.1016/j.jweia.2025.106130","url":null,"abstract":"<div><div>The train slipstream, referring to the dynamic airflow induced by moving trains, presents significant safety risks in confined environments like tunnels. While much research has focused on slipstream effects in open air, studies in tunnels are limited due to the challenges of simulating these complex aerodynamic conditions. This study aims to address these challenges by validating a CFD model based on URANS for train slipstream analysis in tunnels, comparing it against experimental data. A novel numerical statistical approach is introduced, enabling the robust characterization of slipstream phenomena using extended tunnel configurations, allowing the collection of multiple independent velocity profiles from a single simulation. The results highlight the differences in slipstream behavior between short and extended tunnels, emphasizing the impact of tunnel length on piston wind and wake development. By focusing on statistical comparisons, including ensemble mean, standard deviation, and peak distribution, the study demonstrates that the multiple-probe approach offers a robust and detailed representation of slipstream behavior. This methodology provides a general and replicable framework for characterizing slipstream flow statistics, proving especially valuable during early train and tunnel design stages where experimental data are lacking, and showing promising potential in the context of train homologation processes.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"264 ","pages":"Article 106130"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on a good combination of inlet air spray pre-cooling and Y-type windbreak in a natural draft dry cooling tower 自然通风干式冷却塔进气喷雾预冷与y型防风林良好组合的研究

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-03 DOI: 10.1016/j.jweia.2025.106159

Yu Luo , Weiran Shi , Ke Sun , Huimin Pang , Suoying He , Yang Gao , Chao Wang , Jingrun Zhang , Bing Han , Ghulam Qadir Chaudhary , Muzaffar Ali , Ming Gao

{"title":"Investigation on a good combination of inlet air spray pre-cooling and Y-type windbreak in a natural draft dry cooling tower","authors":"Yu Luo , Weiran Shi , Ke Sun , Huimin Pang , Suoying He , Yang Gao , Chao Wang , Jingrun Zhang , Bing Han , Ghulam Qadir Chaudhary , Muzaffar Ali , Ming Gao","doi":"10.1016/j.jweia.2025.106159","DOIUrl":"10.1016/j.jweia.2025.106159","url":null,"abstract":"<div><div>Crosswind affects the airflow of natural draft dry cooling towers (NDDCTs), which will in turn affect the trajectory of spray water droplets and will impair the pre-cooling effect of NDDCTs. This study develops 3-D models to simulate the operation of a 120 m high NDDCT with seven spray pre-cooling schemes and Y-type windbreak, aiming to optimize their combination. The simulation finds that: (1) The one-circle arranged spray nozzles increase the tower's heat rejection rate up to 7.01 % (increased from 123.68 MW to 132.35 MW) compared with no spray while the linear-arranged spray nozzles increase the heat rejection rate up to 5.84 % (increased from 123.68 MW to 130.90 MW); (2) The three-circle nozzle arrangement produces the highest heat rejection rate as 147.99 MW with an 22.89 % improvement compared with no spray, while the one-circle nozzle arrangement with the radius of 21.50 m produces the lowest heat rejection rate as 129.10 MW with an 7.21 % improvement; the water evaporation ratio follows the order of one-circle at the radius 41.50 m as 100.00 %, two-circle as 99.00 % and three-circle as 98.52 % is the last; (3) The two-circle arranged spray nozzles with the radii of 31.50 m and 41.50 m, the total water flowrate of 14.8 kg/s and nozzle number of 74 are found to be a good combination with the Y-type windbreak for performance improvement of the NDDCT, which improves the heat rejection performance of the NDDCT well (with 15.84 % improvement, i.e., increased from 120.42 MW at no spray to 139.49 MW) with moderate water consumption (not too high and not too low) of 14.8 kg/s and high water evaporation ratio of 99.00 %.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"265 ","pages":"Article 106159"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of sloped terrain on wind loads in high-rise Buildings: An experimental wind tunnel investigation 斜坡地形对高层建筑风荷载的影响：风洞试验研究

IF 4.2 2区工程技术

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-07-01 DOI: 10.1016/j.jweia.2025.106156

Zengshun Chen , Zhihang Zhao , Siyu Wang , Yemeng Xu , Zhangchen Qin , Ke Li , Bubryur Kim

{"title":"Impact of sloped terrain on wind loads in high-rise Buildings: An experimental wind tunnel investigation","authors":"Zengshun Chen , Zhihang Zhao , Siyu Wang , Yemeng Xu , Zhangchen Qin , Ke Li , Bubryur Kim","doi":"10.1016/j.jweia.2025.106156","DOIUrl":"10.1016/j.jweia.2025.106156","url":null,"abstract":"<div><div>Topographic wind effects can significantly enhance wind loads on high-rise buildings, leading to structural damage, occupant discomfort, and increased safety risks. This study investigates the impact of sloped terrain on wind loads through synchronized pressure measurements in a wind tunnel. We tested square-sectioned high-rise building models under various slope gradients and building-slope spacings. Our analysis systematically compared disturbed wind profiles, surface pressure distributions, and wind forces on the building model across different terrains. The findings indicate that sloped terrains intensify flow acceleration, amplifying mean wind pressures by approximately 20 % on upper building sections (z/H > 0.7) compared to flat terrain. Moreover, terrain-induced turbulence increases fluctuating pressures and alters flow structures near a building's base. Interestingly, the increase in terrain slope is positively associated with the intensity of terrain-induced turbulence; however, flow acceleration does not exhibit a linear relationship with the terrain slope. Under identical terrain heights, a mild slope may induce a great degree of acceleration, leading to a more substantial increase in wind loading. These results provide direct evidence for wind load regulations for buildings situated in sloped terrain.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"264 ","pages":"Article 106156"},"PeriodicalIF":4.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0