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

Investigation of wind profile and turbulent transport patterns in complex mountainous terrain based on clustering analysis 基于聚类分析的复杂山地地形风廓线和湍流输送模式研究

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-18 DOI: 10.1016/j.jweia.2025.106289

Tingyuan Yan , Jingxi Qin , Mingjin Zhang , Jiale Long , Jinxiang Zhang , Yongle Li

The wind field in mountainous regions is shaped by the combined effects of complex terrain and atmospheric stratification, resulting in diverse wind profile structures. This study utilized Doppler wind profilers and sonic anemometers for long-term field observations, aiming to identify wind profile patterns and their associated turbulent transport characteristics in complex mountainous regions. Unsupervised clustering analysis of the observed wind profile data was performed using a Self-Organizing Map (SOM) neural network. The results characterize the spatiotemporal evolution of wind profiles from the perspective of typical thermal stratification in mountainous wind fields. Based on the vertical transport of momentum and heat, the study identifies the turbulent transport characteristics and atmospheric stability regimes associated with different wind profile patterns. Furthermore, Evolutionary Power Spectral Density (EPSD) analysis reveals the time-frequency distribution of turbulent kinetic energy throughout wind profile evolution, highlighting the substantial impact of atmospheric stability on the partitioning of wind energy.

山区风场受复杂地形和大气分层的共同作用，形成了不同的风廓线结构。本研究利用多普勒风廓线仪和声速风速仪进行了长期的野外观测，旨在确定复杂山区的风廓线模式及其相关的湍流输送特征。利用自组织图（SOM）神经网络对观测风廓线数据进行无监督聚类分析。研究结果从典型热分层的角度刻画了山区风场风廓线的时空演变特征。基于动量和热量的垂直输送，研究确定了与不同风廓线型相关的湍流输送特征和大气稳定性机制。此外，演化功率谱密度（EPSD）分析揭示了风廓线演化过程中湍流动能的时频分布，强调了大气稳定性对风能分配的重要影响。

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引用次数: 0

Variations in fundamental statistics of wind speeds based on high-frequency meteorological station data in Fukuoka, Japan 基于日本福冈高频气象站数据的风速基本统计的变化

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-18 DOI: 10.1016/j.jweia.2025.106286

Sankang Yin , Yezhan Li , Naoki Ikegaya

Gustiness of turbulent outdoor wind has attracted significant research interest recently. Computational fluid dynamics (CFD) simulations and wind-tunnel experiments (WTEs) perform well in reproducing microscale turbulent phenomena. However, outdoor wind fields consist of the superimposition of various-scale turbulent phenomena covering from microscale to mesoscale. To effectively apply the knowledge obtained from WTEs and CFD, it is essential to clarify the statistical characteristics of realistic outdoor airflow at time scales shorter than the period defined by the spectral gap split. Therefore, based on high-frequency meteorological data, the variation in the fundamental statistics in 10 min of outdoor airflow was stochastically examined for a coastal region of Japan, Fukuoka. The relationship between statistics holds across various observation stations. Additionally, the probability density functions (PDFs) of the statistics exhibit a high degree of consistency regardless of location. Furthermore, specific weak wind conditions were differentiated by using higher-order statistics and peaks of the wind speeds in 10 min. This also clarifies the necessity of PDF models for actual weak wind conditions. These findings are expected to enhance the understanding of how real complex terrain influences wind field characteristics in urban areas and provide data support for developing statistical models for CFD simulations and WTEs.

近年来，室外湍流风的脉动特性引起了人们的广泛关注。计算流体力学（CFD）模拟和风洞实验（WTEs）在再现微尺度湍流现象方面表现良好。然而，室外风场是由从微尺度到中尺度的各种尺度湍流现象叠加而成。为了有效地应用从WTEs和CFD中获得的知识，有必要澄清实际室外气流在比谱隙分裂定义的时间尺度更短的时间尺度上的统计特征。因此，基于高频气象数据，对日本福冈沿海地区10分钟室外气流基本统计量的变化进行了随机检验。不同观测站的统计数据之间的关系是相同的。此外，无论位置如何，统计数据的概率密度函数（pdf）都表现出高度的一致性。此外，利用高阶统计量和10 min风速峰值来区分特定的弱风条件。这也阐明了实际弱风条件下PDF模型的必要性。这些发现有望增强对真实复杂地形如何影响城市地区风场特征的理解，并为开发CFD模拟和wte的统计模型提供数据支持。

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引用次数: 0

Effect of built-up area expansion on urban ventilation over Loess Tableland valley terrain under stable background wind 稳定背景风条件下黄土塬谷地形建成区扩张对城市通风的影响

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-18 DOI: 10.1016/j.jweia.2025.106288

Zhuolei Yu , Yi Wang , Songheng Wu , Jukun Wang , Xiaoxue Wang

The urbanization process in the Loess Plateau region, while promoting economic development, also faces the problem that ambient air is seriously polluted. Good urban ventilation can alleviate the contradiction between urban development and livable environment. Therefore, the study focuses on the effect of built-up area expansion on ventilation characteristics for Loess Tableland valley town under the stable background wind. The results simulated by the city-scale computational fluid dynamics (CSCFD) model show that the ventilation performance of urban canopy layer (UCL) with direct interaction between the stable background wind and street canyon airflow is significantly better than that of the UCL with indirect interaction. When the built-up area expands on the valley floor, the expansion is favorable to improve the air quality in the UCL at the background Reynolds number (Re_b) less than 5.80 × 10⁵. When the built-up area expands on the top surface of Loess Tableland, the expansion at Re_b ≥ 1.55 × 10⁶ causes a maximum increase of 133.21 % and 64.47 % in the average air age in the upstream UCL and downstream UCL, respectively, which deteriorates the air quality in both the UCLs. This study provides a theoretical reference for future urban planning and optimum location of industrial zones.

黄土高原地区城市化进程在促进经济发展的同时，也面临着环境空气严重污染的问题。良好的城市通风可以缓解城市发展与宜居环境之间的矛盾。因此，本文研究的重点是稳定背景风条件下黄土塬区河谷城镇建成区扩张对通风特性的影响。城市尺度计算流体动力学（CSCFD）模型模拟结果表明，稳定背景风与街道峡谷气流直接交互作用下的城市冠层通风性能明显优于间接交互作用下的城市冠层。当建成区在山谷底扩展时，当背景雷诺数（Reb）小于5.80 × 105时，扩展有利于改善UCL内的空气质量。当黄土塬上地表建成区扩张时，Reb≥1.55 × 106的扩张幅度最大，上游和下游的平均空气龄分别增加了133.21%和64.47%，导致上游和下游的空气质量恶化。该研究为未来城市规划和工业园区优化选址提供了理论参考。

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引用次数: 0

Effects of discrete fairings on torsional aerodynamic vibrations of a bridge deck 离散整流罩对桥面扭转气动振动的影响

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-11 DOI: 10.1016/j.jweia.2025.106272

Thet Ei, Kyohei Noguchi, Hisato Matsumiya, Saeri Hara, Tomomi Yagi

Discrete fairings are short fairing segments arranged at intervals along the bridge deck. This study examines the effect of the interval and length of discrete fairings on aerodynamic instability, with particular emphasis on their potential to cause additional three-dimensional effects. Therefore, the flutter and vortex-induced vibration (VIV) characteristics of a torsional one-degree-of-freedom system featuring a 10:1 rectangular prism were examined. Two parameters were utilized to define the discrete fairings: fairing ratio— the ratio of a fairing length to the summation of a fairing length and an interval—and fairing length. A series of wind tunnel tests were conducted on a rectangular prism with and without solid walls to examine the aerodynamic performance of the discrete fairings. The results indicated that all configurations with discrete fairings, except the case with a single fairing, suppressed torsional flutter. Even a single fairing demonstrated improved performance, likely attributed to enhanced flow separation characteristics. For prisms with solid walls, all discrete fairing setups—except a certain case—significantly reduced VIV amplitudes compared with full fairings, attributed to the generation of additional three-dimensional effects, although torsional flutter was not eliminated. These results highlight the significance of additional three-dimensional effects of discrete fairings in enhancing aerodynamic stability.

离散整流罩是沿桥面间隔布置的短整流罩。本研究考察了离散整流罩的间隔和长度对气动不稳定性的影响，特别强调了它们可能引起额外的三维效应。为此，对10:1矩形棱镜扭转一自由度系统的颤振和涡激振动特性进行了研究。使用两个参数来定义离散整流罩：整流罩比-整流罩长度与整流罩长度和间隔之和的比率和整流罩长度。在带和不带固体壁的矩形棱镜上进行了一系列风洞试验，以检验离散整流罩的气动性能。结果表明，除单个整流罩外，所有带有离散整流罩的结构都能抑制扭转颤振。即使是单个整流罩也表现出了更好的性能，这可能归功于增强的流动分离特性。对于具有实心壁的棱镜，除某些情况外，所有离散整流罩的设置与完整整流罩相比，显著降低了涡激振动幅度，这归因于产生了额外的三维效应，尽管扭转颤振并未消除。这些结果突出了离散整流罩附加三维效应在提高气动稳定性方面的重要性。

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引用次数: 0

Effects of turbulence intensity on the running safety of trains on large-span suspension bridges in mountainous areas 湍流强度对山区大跨度悬索桥上列车运行安全的影响

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-10 DOI: 10.1016/j.jweia.2025.106273

Haobo Liang , Yunfeng Zou , Chenzhi Cai , Xiangrong Guo , Xuhui He

Maintaining the running safety of high-speed trains subjected to crosswinds remains a critical challenge in railway bridge engineering. This issue is particularly pronounced in mountainous regions, where long-span bridges are frequently exposed to highly turbulent winds. The turbulent nature in such environments significantly affects the aerodynamic behavior of bluff bodies such as trains and bridges. This study investigates how varying levels of turbulence intensity (I_u), ranging from 4.88 % to 13.47 % under a fixed integral length scale (L_u), affect the aerodynamic characteristics and dynamic interactions within a train-bridge system. Results from wind tunnel tests and numerical modeling reveal that turbulent inflow reduces the drag forces on both the train and the bridge compared with nearly smooth conditions. As the I_u increases, the mean wind load acting on the train's windward side decreases. However, pressure fluctuations become more pronounced and are expressed as root-mean-square (RMS) values. A three-dimensional coupled vibration model was developed to further examine these effects. The analysis reveals that the lateral displacement and safety-related indices (e.g., derailment coefficient) of the train increase as I_u rises. At an I_u of 13.47 %, the derailment coefficient of the train is observed to increase by 17.86 % compared with that under smooth flow conditions. These results demonstrate that the train's dynamic responses are highly sensitive to pulsating pressure variations in turbulent wind fields. The findings provide valuable insights into the aerodynamic stability and safety assessment of high-speed rail systems operating on long-span bridges exposed to complex turbulent winds typical of mountainous terrains.

保持高速列车在侧风作用下的运行安全一直是铁路桥梁工程面临的重要挑战。这个问题在山区尤其明显，那里的大跨度桥梁经常暴露在强烈的湍流中。在这样的环境中，湍流的性质会显著影响诸如火车和桥梁等钝体的气动性能。本文研究了在固定积分长度尺度（Lu）下，湍流强度（Iu）在4.88% ~ 13.47%之间的变化对列车-桥梁系统气动特性和动力相互作用的影响。风洞试验和数值模拟结果表明，与接近平稳的条件相比，湍流流入降低了列车和桥梁的阻力。随着u的增大，作用在列车迎风侧的平均风荷载减小。然而，压力波动变得更加明显，并以均方根（RMS）值表示。建立了一个三维耦合振动模型来进一步研究这些影响。分析表明，列车横向位移和安全相关指标（如脱轨系数）随Iu的增大而增大。当流量为13.47%时，列车的脱轨系数比平流条件下提高了17.86%。结果表明，在紊流风场中，列车的动力响应对脉动压力变化非常敏感。研究结果为高铁系统的气动稳定性和安全评估提供了有价值的见解，这些高铁系统运行在大跨度桥梁上，暴露在山区典型的复杂湍流中。

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引用次数: 0

CFD simulations of running aerodynamics: Impact of computational parameters 运行空气动力学的CFD模拟：计算参数的影响

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-10 DOI: 10.1016/j.jweia.2025.106271

Xiaoqi Hu, Fabio Malizia, Bert Blocken

Running is a fundamental discipline in athletics, yet its aerodynamic characteristics have not yet been intensively studied, particularly from a computational perspective. In recent years, Computational Fluid Dynamics (CFD) has become an increasingly valuable tool for advancing research in sports aerodynamics. However, the reliability of CFD predictions depends strongly on the selection of computational parameters which remains insufficiently explored in the context of human running. This paper presents a detailed study on the impact of grid resolution, computational domain size, and turbulence modelling on the computed drag area for a full-scale female runner manikin. The CFD simulations are validated by comparison with wind tunnel measurements performed in a geometrically matched test section. The sensitivity analysis provides practical guidelines for generating grids that balance accuracy and computational economy. The blockage ratio (BR) is found to be a critical parameter: values exceeding 3.5% result in drag overestimations larger than 2.8%. Among the turbulence models tested, transition-sensitive models (γ–SST and T–SST) in pseudo-transient RANS formulation and the hybrid scale-adaptive simulation (SAS) approach showed the best agreement with experimental results. Based on these findings, the study proposes a set of best-practice guidelines for reliable and cost-effective CFD simulations of running aerodynamics.

跑步是田径运动中的一项基本学科，但其空气动力学特性尚未得到深入研究，特别是从计算的角度来看。近年来，计算流体动力学（CFD）已成为推进运动空气动力学研究的一个越来越有价值的工具。然而，CFD预测的可靠性很大程度上取决于计算参数的选择，而在人类运行的背景下，这方面的研究还不够充分。本文详细研究了网格分辨率、计算域大小和湍流建模对全尺寸女性跑步人体模型计算阻力面积的影响。通过与几何匹配试验段风洞测量结果的对比，验证了CFD模拟的有效性。灵敏度分析为平衡网格的精度和计算经济性提供了实用的指导。发现堵塞比（BR）是一个关键参数：超过3.5%的值导致阻力高估大于2.8%。在测试的湍流模型中，伪瞬态RANS公式中的过渡敏感模型（γ-SST和T-SST）和混合尺度自适应模拟（SAS）方法与实验结果最吻合。基于这些发现，该研究提出了一套最佳实践指南，用于可靠且经济高效的运行空气动力学CFD模拟。

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引用次数: 0

A physics-informed deep learning framework for the tropical cyclones decay model 热带气旋衰变模型的物理信息深度学习框架

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-06 DOI: 10.1016/j.jweia.2025.106263

Biao Tong , Jian Yang , Zhongdong Duan , Gang Hu

Accurate modeling of tropical cyclone (TC) decay after landfall is critical for effective hazard assessment and disaster mitigation in coastal regions. This study introduces a physics-informed deep learning framework based on the Extended Long Short-Term Memory (xLSTM) network to predict TC decay processes over mainland East and Southeast Asia. The proposed xLSTM model incorporates both empirical and physical constraints, leveraging multi-source observational and environmental reanalysis data. Compared with established empirical models, xLSTM demonstrates superior predictive performance, achieving lower error, as well as higher correlation with observed data. Spatial and temporal analyses reveal that the xLSTM framework reduces regional biases and more accurately captures complex decay dynamics, especially for the mid-to-late stages of landfall forecasts. Gradient-based sensitivity analysis identifies initial wind speed, time since landfall, land-sea mask, and land cover characteristics as the dominant factors influencing TC intensity decay. These findings highlight the advantages of integrating physics-informed constraints within deep learning models for improved representation and prediction of TC decay, supporting enhanced risk assessment and operational forecasting for coastal hazard management.

准确模拟热带气旋登陆后的衰减对沿海地区进行有效的危害评估和减灾至关重要。本研究介绍了一个基于扩展长短期记忆（xLSTM）网络的物理信息深度学习框架，以预测东亚大陆和东南亚的TC衰减过程。提出的xLSTM模型结合了经验和物理约束，利用了多源观测和环境再分析数据。与已建立的经验模型相比，xLSTM具有更好的预测性能，误差更小，与观测数据的相关性更高。时空分析表明，xLSTM框架减少了区域偏差，更准确地捕捉了复杂的衰减动态，特别是在登陆预报的中后期阶段。基于梯度的敏感性分析表明，初始风速、登陆时间、陆-海掩模和土地覆盖特征是影响TC强度衰减的主要因素。这些发现强调了在深度学习模型中集成物理信息约束的优势，以改进TC衰变的表示和预测，支持加强沿海灾害管理的风险评估和业务预测。

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引用次数: 0

Correction of coupled aerodynamic loads in high-frequency force-balance testing using a Bayesian approach 用贝叶斯方法校正高频力平衡试验中耦合气动载荷

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-05 DOI: 10.1016/j.jweia.2025.106268

Haoran Pan , Zuo Zhu , An Xu

High-frequency force-balance testing is one of the most practical approaches for evaluating wind loads and wind-induced responses on high-rise buildings in wind tunnels. However, the method is susceptible to measurement bias caused by resonant amplification and modal coupling between the balance and the structural model. Traditional correction methods partly mitigate resonant amplification but remain limited under modal coupling, particularly in cases of closely spaced modes. This study presents a physically grounded correction framework based on Bayesian operational modal analysis, which incorporates the coupled dynamic characteristics of the balance-model system (BMS) into a Bayesian inference scheme, enabling statistically consistent and physically interpretable identification of its modal characteristics. By leveraging the identified modal parameters of the BMS, the method decouples aerodynamic loads, suppresses dynamic amplification, and reconstructs bias-reduced aerodynamic load spectra. Numerical simulations demonstrate the robustness of the method under varying modal proximity and coupling, while wind-tunnel experiments on a supertall building model further validate its effectiveness. The results highlight the potential of the proposed framework to improve aerodynamic-load correction and structural-response prediction in wind-tunnel testing.

高频力平衡试验是评价风洞高层建筑风荷载和风致响应最实用的方法之一。然而，由于天平与结构模型之间的谐振放大和模态耦合，该方法容易产生测量偏差。传统的校正方法在一定程度上减轻了谐振放大，但在模态耦合下仍然有限，特别是在模态紧密间隔的情况下。本研究提出了一个基于贝叶斯操作模态分析的物理接地校正框架，该框架将平衡模型系统（BMS）的耦合动态特性纳入贝叶斯推理方案，使其模态特性的识别具有统计一致性和物理可解释性。该方法利用已识别的BMS模态参数，对气动载荷进行解耦，抑制动力放大，重建减偏气动载荷谱。数值仿真验证了该方法在变模态接近和耦合条件下的鲁棒性，超高层建筑模型风洞试验进一步验证了该方法的有效性。结果表明，该框架在改善风洞试验中的空气动力载荷校正和结构响应预测方面具有很大的潜力。

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引用次数: 0

Predicting wind-induced interference effects on a low-rise building in a realistic urban area using large-eddy simulations 用大涡模拟方法预测现实城区低层建筑的风致干扰效应

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-11-04 DOI: 10.1016/j.jweia.2025.106270

Themistoklis Vargiemezis, Catherine Gorlé

This paper validates Large Eddy Simulation (LES) for predicting wind-induced pressures on low-rise buildings in urban areas. Validation data for pressure coefficients on the building was obtained from experiments on a 1:100 scale model of Stanford’s Y2E2 building in the NHERI Wall of Wind (WoW) facility at Florida International University, and simulations were conducted using the CharLES code. The study first ensured an accurate representation of WoW surface layer velocity statistics in the LES. Next, simulations of the surface layer wind flow interacting with the buildings showed a close agreement between LES and wind tunnel data for wind pressure coefficient statistics (mean, RMS, peak, skewness, kurtosis) on the building surface. The LES can accurately identify areas where surrounding buildings create more negative peak pressure coefficients than would occur on the isolated building. The changes in the peak pressure coefficients were found to be induced by changes in the mean flow velocity magnitude and direction, including new regions of flow separation, acceleration, and vortex formation. In conclusion, LES is a valuable tool for analyzing wind pressures on realistic low-rise buildings in complex urban environments, offering reliable estimates for local peak pressure coefficients and insight into the flow physics causing these peaks.

本文对大涡模拟（LES）在城市低层建筑风致压力预测中的应用进行了验证。建筑物上的压力系数验证数据来自佛罗里达国际大学NHERI风墙（WoW）设施中斯坦福Y2E2建筑1:100比例模型的实验，并使用CharLES代码进行了模拟。该研究首先确保了在LES中准确表示WoW表层速度统计。其次，对地面气流与建筑物相互作用的模拟表明，LES和风洞数据在建筑物表面的风压系数统计（平均值、均方根、峰值、偏度、峰度）上非常吻合。LES可以准确地识别周围建筑物产生负峰值压力系数比孤立建筑物产生负峰值压力系数更多的区域。发现峰值压力系数的变化是由平均流速大小和方向的变化引起的，包括新的流动分离、加速和涡形成区域。总之，LES是分析复杂城市环境中真实低层建筑风压的一个有价值的工具，可以提供可靠的局部峰值压力系数估计，并深入了解导致这些峰值的流动物理。

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引用次数: 0

Mitigating the abnormal vibration of the tail car of a 400 km/h high-speed train by using flow control devices 利用流量控制装置缓解400 km/h高速列车尾车厢异常振动

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics

Pub Date : 2025-10-31 DOI: 10.1016/j.jweia.2025.106264

Yifan Li, Tian Li, Jiye Zhang

With increasing train speeds and diverse operational environments, abnormal vibration of the tail car has become a critical bottleneck limiting further advancements in high-speed train technology. This study develops aerodynamic and multi-body dynamics models for 3-car and 8-car train configurations to identify tail car vibration characteristics. Passive flow control strategies incorporating vortex generators and bogie skirts are proposed in various configurations to mitigate these vibrations. At the speed of 400 km/h, the aerodynamic load frequency characteristics, surface pressure distribution, and unsteady flow field around the train are analyzed. And the effectiveness of different aerodynamic optimization schemes in improving tail car stability is evaluated. Results indicate that the vortex generator enhances flow attachment by acting on the airflow over the carbody roof and upper rear region, while the bogie skirt suppresses turbulence along the carbody sides and rear lower section, reducing vortex shedding. Their combined application significantly reduces the vibration intensity of unsteady aerodynamic loads, leading to a 15.43 % and 15.82 % reduction in the maximum lateral and vertical stability indices of the tail car, respectively. This effectively mitigates aerodynamic disturbances and fundamentally improves overall train stability. The research results not only solve the problem of abnormal vibration of the tail car but also provide important engineering guidance for the aerodynamic shape optimization and vibration control of 400 km/h HST.

随着列车运行速度的提高和运行环境的多样化，尾车的异常振动已成为制约高速列车技术进一步发展的关键瓶颈。本研究建立了3节车厢和8节车厢列车配置的气动和多体动力学模型，以识别尾部车厢的振动特性。采用涡发生器和转向架裙摆组成的被动流动控制策略可以缓解这些振动。在400 km/h速度下，分析了列车的气动载荷频率特性、表面压力分布以及列车周围的非定常流场。并对不同气动优化方案在提高尾车稳定性方面的效果进行了评价。结果表明，涡发生器通过作用于车体顶部和后上部区域的气流来增强流动附着，而转向架裙部则通过抑制车体侧面和后下部区域的湍流来减少涡脱落。它们的组合应用显著降低了非定常气动载荷的振动强度，导致尾车的最大横向和垂直稳定指数分别降低了15.43%和15.82%。这有效地减轻了空气动力学干扰，从根本上提高了列车的整体稳定性。研究结果不仅解决了尾车异常振动问题，而且为400 km/h高速公路气动外形优化和振动控制提供了重要的工程指导。

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引用次数: 0