Journal of Wind Engineering and Industrial Aerodynamics最新文献

{"title":"Resistant Chronic Venous Leg Ulcers: Effect of Adjuvant Systemic Hyperbaric Oxygen Therapy Versus Venous Intervention Alone.","authors":"Amr M Elsharnoby, Ahmed H El-Barbary, Ali E Eldeeb, Hassan A Hassan","doi":"10.1177/15347346221100891","DOIUrl":"10.1177/15347346221100891","url":null,"abstract":"<p><p><i>The aim of this study</i> was to assess the adjuvant efficacy of adding systemic hyperbaric oxygen therapy (HBOT) to definitive venous intervention for healing of resistant chronic venous leg ulcers (VLUs). From 97 chronic VLUs, 63 were subjected to a pre-study standard wound care. Thirty three ulcers failed to achieve 50% size reduction, after the 4-weeks standard care, and were allocated to be treated with: HBOT plus venous intervention (n = 17), or venous intervention alone (n = 16). Primary outcomes were the change in ulcer area, complete healing frequency and time, as well as ulcer recurrence. There was a history of recurrent ulcer (82.3% vs. 69%) in HBOT versus venous intervention groups, respectively. The comparison between both groups with regard to area change showed non-significant difference after 3 months of therapy, while there was a significant difference at 6 and 12 months. A significant positive correlation was found between the HBO sessions numbers (20-40) and the rate of ulcer size reduction. Ulcer complete closure after 3 months was observed in (41.7%) of HBOT group, versus (23%) in venous intervention group; (p = 0.33). After 12 months, complete closure was observed in (83.3%) of HBOT group, versus (53.8%) in venous intervention group; (p = 0.02). The mean time of complete closure was significantly shorter in HBOT group, (p = 0.001). HBOT may be effective as adjuvant to venous intervention in treatment of chronic resistant VLUs, it should be reserved for persistent ulcer. Randomized controlled trials with larger numbers is still needed to elucidate its exact role and specific indications.</p>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"36 1","pages":"444-451"},"PeriodicalIF":4.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75295494","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}

{"title":"Rapid risk assessment of multiple buffeting performance levels for long-span bridges","authors":"Ruiqing Han ,&nbsp;Teng Wu","doi":"10.1016/j.jweia.2025.106128","DOIUrl":"10.1016/j.jweia.2025.106128","url":null,"abstract":"<div><div>The wind-sensitive long-span bridges under buffeting loads are currently designed to be limited to linear, elastic behavior but may present unfavorable performance in terms of driving/pedestrian comfort. Furthermore, the lack of consideration on global climate change (with intensified windstorms) and local thermodynamics process (with energetic convective turbulence) in design wind loads may lead to nonlinear, inelastic behaviors of existing bridges associated with various damage levels to structural components (e.g., negligible, repairable, or severe damage states). Accordingly, rapid risk assessment of long-span bridge buffeting performance at multiple levels is needed. To this end, a closed-form solution is developed in this study by convolving the wind hazard function (fitted as a polynomial curve) with the structural fragility function (fitted as a lognormal curve) for risk evaluation with high efficiency. The Sutong Yangtze River Bridge is utilized as a case study for rapid risk (probability of damage) assessment of structural components (e.g., bridge deck, tower, and stay cable) under buffeting loads based on the proposed closed-form solution. To verify the efficiency and accuracy of the proposed approach, the buffeting risks calculated by the closed-form solution are compared with those obtained through the Monte Carlo simulations. Finally, parameter sensitivity analyses are conducted to reveal the important effects of the uncertainties related to wind fields, aerodynamic characteristics, and structural properties on the long-span bridge buffeting risks.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106128"},"PeriodicalIF":4.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154682","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}

{"title":"Implementation and assessment of a hybrid RANS/LES model using OpenFOAM","authors":"Xinyu Guo,&nbsp;Lianzhou Wang","doi":"10.1016/j.jweia.2025.106113","DOIUrl":"10.1016/j.jweia.2025.106113","url":null,"abstract":"<div><div>This paper addresses the limitations of the traditional Shear Stress Transport Detached Eddy Simulation (SSTDES) model in simulating complex unsteady turbulence and proposes an enhanced Shear Stress Transport Filtered Detached Eddy Simulation (SSTFDES) model developed using the open-source software Open Field Operation and Manipulation (OpenFOAM). The model introduces unsteady turbulence fluctuations within the boundary layer through adaptive filtering techniques, adjusting the eddy viscosity coefficient <span><math><mrow><msub><mi>ν</mi><mi>t</mi></msub></mrow></math></span> and the blending function <span><math><mrow><msub><mi>F</mi><mrow><mi>D</mi><mi>E</mi><mi>S</mi></mrow></msub></mrow></math></span>, thereby improving the model's ability to capture turbulent characteristics. Two high Reynolds number cases were selected for validation: the three-dimensional square cylinder flow at <span><math><mrow><mi>R</mi><mi>e</mi><mo>=</mo><mn>21400</mn></mrow></math></span> and the surface-mounted cube case at <span><math><mrow><mi>R</mi><mi>e</mi><mo>=</mo><mn>40000</mn></mrow></math></span>. The improved model was implemented in OpenFOAM and tested to assess its performance in simulating both isolated and infinitely long bluff body configurations. The results demonstrate that the SSTFDES model outperforms the traditional model in capturing wake vortex shedding characteristics, pressure distribution, and lift/drag coefficients, particularly exhibiting higher accuracy and robustness in pressure coherence analysis and vortex shedding frequency prediction. Additionally, energy spectrum and probability density function analyses based on the model's computational results further validate its accurate prediction of the unsteady characteristics of the wake vortex. The study suggests that the SSTFDES model provides new insights for the further development of Hybrid RANS-LES Method (HRLM).</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106113"},"PeriodicalIF":4.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134889","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}

{"title":"Reliability analysis and parametric studies of the buffeting performance of long-span bridges under multiple sets of random variables","authors":"Juan Quintela ,&nbsp;Miguel Cid Montoya ,&nbsp;José Ángel Jurado ,&nbsp;Santiago Hernández","doi":"10.1016/j.jweia.2025.106112","DOIUrl":"10.1016/j.jweia.2025.106112","url":null,"abstract":"<div><div>Buffeting-induced accelerations and displacements of bridge deck girders commonly drive the bridge design’s comfort, operational, and strength limit states. The scattered nature of the main wind characteristics and bridge responses recorded in multiple monitoring campaigns make deterministic approaches insufficient to assess the bridge’s performance along its life span. This study reports comprehensive sensitivity and reliability studies conducted to unveil the influence of multiple parameters controlling long-span bridges’ buffeting responses. The impact of several sets of random variables on the reliability of the Great Belt Bridge is systematically studied. A detailed treatment of the uncertainty of flutter derivatives consisting of combining their frequency-dependent random definition with their experimentally defined correlation is proposed. Results show the drastic impact of uncertainty in the flutter derivatives, the vertical turbulence intensity, the mean wind velocity, and the definition of the buffeting loads, particularly the slopes of the force coefficients and the aerodynamic admittance, on the buffeting-induced accelerations. The influence of aerodynamic admittance on the results is analyzed in the context of random definitions of mean velocity, turbulent intensities, length scales, structural damping, and aerodynamic characteristics. The computational efficiency of gradient-based reliability methods is discussed, showing its potential to address high-dimensional problems within design frameworks.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106112"},"PeriodicalIF":4.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124050","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}

{"title":"Turbulent characteristics in the atmospheric boundary layer under neutral and unstable thermal stratifications based on LES","authors":"Yezhan Li ,&nbsp;Tsubasa Okaze ,&nbsp;Naoki Ikegaya","doi":"10.1016/j.jweia.2025.106126","DOIUrl":"10.1016/j.jweia.2025.106126","url":null,"abstract":"<div><div>In the atmospheric boundary layer (ABL), thermal stratification plays a crucial role in influencing turbulent characteristics. However, comprehensive analyses of turbulent characteristics under varying thermal conditions, particularly concerning higher-order statistics, remain limited. Therefore, in this study, one neutral and seven unstable turbulent boundary layers were reproduced by large-eddy simulations. The results show that under unstable conditions, buoyancy effects primarily influence the streamwise velocity in the near-wall region, vertical velocity in regions slightly away from the wall, and the temperature throughout the entire boundary layer height. Turbulence intensity in the vertical direction is significantly affected by the buoyancy effects, while the turbulence intensities in the streamwise and lateral directions are primarily dominated by shear production. As the bulk Richardson number increases, boundary layer height and maximum turbulent kinetic energy decrease. Furthermore, thermal stratification can influence higher-order turbulence statistics near the surface under strongly unstable conditions, but the overall statistical patterns tend to exhibit universal behavior. Within the boundary layer height, the skewness and kurtosis velocities in the unstable cases exhibit generally consistent trends with those in the neutral case, within the range of bulk Richardson numbers from −0.3 to 0.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106126"},"PeriodicalIF":4.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942665","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}

{"title":"Effects of aeroelasticity and wind direction on the aerodynamic characteristics and structural responses of blades for horizontal-axis wind turbines under typhoons","authors":"H.Y. Peng ,&nbsp;Q.B. Lin ,&nbsp;H.J. Liu","doi":"10.1016/j.jweia.2025.106125","DOIUrl":"10.1016/j.jweia.2025.106125","url":null,"abstract":"<div><div>Flexible blades of horizontal-axis wind turbines (HAWTs) have severe aeroelastic issues under typhoons. Fluid-structure interaction studies which incorporated computational fluid dynamics (CFD) and finite element method (FEM) were conducted to investigate the effects of aeroelasticity and wind direction (<em>θ</em>, relative to the normal of rotor's plane) on the aerodynamics and responses of blades under low-turbulence typhoons. Under the fully considered aeroelasticity, the increase in blade thrust fluctuation at <em>θ =</em> 90° was larger than those at <em>θ =</em> 0° and 180°. The vortex shedding of upstream blade at <em>θ =</em> 90° increased the thrust variation of downstream blade. The flapwise thrust on Blade 3 (azimuth angle of 240°, relative to the vertical direction in rotor's plane) increased by 109.30 % at <em>θ =</em> 90° under the fully considered aeroelasticity and upstream interference. Under the full consideration of aeroelasticity, the significant displacement-induced flow separation at <em>θ =</em> 90° increases the fluctuation in wind load. Large wind load variations increase aerodynamic damping, decreasing the fluctuations in blade-tip displacement (Δ) and blade-root moment (<em>M</em>). The decreases in Δ and <em>M</em> reduce the maximum stress of blade. The vortex shedding of flexible blades at <em>θ =</em> 90° increases the structural safety of HAWTs under typhoons.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106125"},"PeriodicalIF":4.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937272","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}

{"title":"Research on wind-induced bending-torsion coupling vibration mechanism and pneumatic vibration reducing measures of large-span flexible photovoltaic arrays under 0° incoming flows","authors":"Bo-yang Wang ,&nbsp;Shi-tang Ke ,&nbsp;Li-shan Wang ,&nbsp;Yan Qin ,&nbsp;Wen-jie Li","doi":"10.1016/j.jweia.2025.106124","DOIUrl":"10.1016/j.jweia.2025.106124","url":null,"abstract":"<div><div>Inter-span series connection and inter-row parallel connection are important connection modes to guarantee the overall stability of large-span flexible photovoltaic arrays. However, the array structure is easy to suffer bending-torsion coupling instability vibration under the maximum thrust of 0° incoming flows. In particular, the first row of photovoltaic suffers the most significant wind load and wind-induced vibration. Therefore, it has important engineering application values to study wind-induced bending-torsion coupling vibration mechanism and vibration damping technology of the large-span flexible photovoltaic arrays under the 0° incoming flows. Firstly, a five-row and three-span complete aeroelastic model that can measure displacement of photovoltaic plates was designed and manufactured. Secondly, a 3D noncontact real-time multipoint vibration measurement technology is proposed to study the wind-induced bending-torsion coupling vibration of flexible photovoltaic arrays at varying wind speeds. Later, four new pneumatic spoiler devices were put forward. The pneumatic vibration damping effect was analyzed by the complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and frequency slice wavelet transform(FSWT). Research results demonstrate that: the bending-torsion coupling vibration of the flexible photovoltaic arrays with wind speed under 0° incoming flows changes from the high-order torsion mode and low-order vertical bending mode to low-order bending-torsion coupling mode. When the wind speed is higher 30.36 m/s, the structure begins to produce vertical bending-torsion coupling vibration and frequency-doubled effect, showing significant nonlinear features. Based on static wind displacement response and time-frequency energy distribution of the structure, it found from a comparison that the “&gt;-shaped” spoiler device has the optimal vibration inhibition effect and the maximum vibration inhibition rate is 75.4 %. The “&lt;-shaped” spoiler device has the second vibration inhabitation effect, while the “L-shaped” and “Γ-shaped” devices show the poorest effect and the minimum vibration inhibition rate is 62.3 %.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106124"},"PeriodicalIF":4.2,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899629","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}

{"title":"Scaling wind loads for incremental dynamic analysis applications","authors":"Anastasia Athanasiou ,&nbsp;Lucia Tirca ,&nbsp;Ted Stathopoulos","doi":"10.1016/j.jweia.2025.106116","DOIUrl":"10.1016/j.jweia.2025.106116","url":null,"abstract":"<div><div>Incremental Dynamic Analysis is a powerful tool for the performance assessment of structures where a full range of responses can be mapped. Currently, an open discussion among researchers is the scaling of wind loads at increasing hazard intensities. In common practice, local aerodynamic pressure data from wind tunnel testing are normalized with respect to the mean wind velocity. Then, the value is linearly scaled up to provide wind loads at considered limit states. The main issue in the linear scaling of winds is the non-consideration of cross-correlation between different time histories and the mean wind velocity. To address this issue, the Wieringa gust model is applied to account for the dependency of gustiness on mean wind speed, thereby updating the scaling coefficients for both mean and turbulent wind components. This methodology is demonstrated through the application of wind IDA on a high-rise steel hospital in Montreal, Canada. The building is designed to meet the code requirements for wind and earthquake loads. Finite element models that incorporate geometrical and material nonlinearities of building's lateral force-resisting systems are developed in OpenSees. These nonlinear models are used to analyze the impact of linear gust scaling on the building's performance under varying wind intensities.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106116"},"PeriodicalIF":4.2,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895700","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}

{"title":"Theoretical model and numerical investigation of ventilation efficiency and pollution characteristics of multi gaseous pollutants in construction tunnel","authors":"Zhuwei Xie ,&nbsp;Dingfu Li ,&nbsp;Yimin Xiao ,&nbsp;Huijun Wu","doi":"10.1016/j.jweia.2025.106115","DOIUrl":"10.1016/j.jweia.2025.106115","url":null,"abstract":"<div><div>Gaseous pollutants (CO, gas, etc.) generated from underground construction tunnels threaten the safety and health of workers, which goes against the concept of green and sustainable development. To efficiently relieve the air pollution in construction tunnel environments, this study innovatively proposed an exhaust factor ventilation model that considered non-uniform mixing of pollutants to characterize the ventilation efficiency of different gaseous pollutants. Subsequently, the airflow distribution and pollution characteristics of gaseous pollutants under different air duct diameters were investigated in depth by combining the exhaust factor ventilation model and numerical simulation. The results demonstrated that the release mode of pollutants affected the spatiotemporal diffusion characteristics of pollutants, where the diffusion distance of CO exhibited a linear function over time, while the diffusion distance of gas exhibited a cubic polynomial function over time. Moreover, the continuously released pollutant had superior ventilation efficiency compared to the one-time produced pollutant, where the exhaust factor of gas was 0.9787–1.0508, which was higher than that of CO (0.5425–0.6815). Furthermore, air duct diameter played a crucial role in improving the control effect of gaseous pollutants without increasing additional costs, as evidenced by an increasing trend in ventilation efficiency, a decreasing trend in CO clearance time and gas volume fraction with an increase in air duct diameter. This research can provide new insights for the control and treatment of gaseous pollutants in construction tunnel environments.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106115"},"PeriodicalIF":4.2,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882555","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}

{"title":"Vortex-induced vibration effects on train dynamics and safety-comfort evaluation in wind-train-bridge coupled system","authors":"Tianyu Chen ,&nbsp;Cunming Ma ,&nbsp;Qingsong Duan ,&nbsp;Kai Cheng ,&nbsp;Cheng Pei","doi":"10.1016/j.jweia.2025.106114","DOIUrl":"10.1016/j.jweia.2025.106114","url":null,"abstract":"<div><div>With the continuous improvement of the bridge span, the phenomenon of vortex-induced vibration (VIV) in railway bridges can disrupt the normal functioning of railway systems. This paper establishes a method for wind-train-bridge-VIV, focusing on the dynamic responses of the bridge and the impact of the train during such events. Additionally, the study evaluates the effects of critical parameters like the amplitude of VIV, the train's operational velocity, and the initial phase angle of VIV on the dynamic reactions of the train and the bridge. The allowable values of VIV for the railway bridge are also investigated. The findings reveal that the three key factors substantially impact the dynamic reactions experienced by the railway bridge and the train. Notably, the VIV amplitude is a dominant factor in the vertical dynamic response, exerting a substantial impact on train ride comfort. Consequently, it is imperative to impose limitations on the VIV amplitude in railway bridges to maintain operational efficiency and passenger comfort.</div></div>","PeriodicalId":54752,"journal":{"name":"Journal of Wind Engineering and Industrial Aerodynamics","volume":"263 ","pages":"Article 106114"},"PeriodicalIF":4.2,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882439","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}