Showing papers in "Journal of Wind Engineering and Industrial Aerodynamics in 2022"

TL;DR: In this paper , a nonlinear control target is introduced, i.e., to ensure that the vibration amplitude is lower than a threshold value (pre-specified according to the expected structural performance) before a target wind speed.

TL;DR: In this paper, a nonlinear control target is introduced, i.e., to ensure that the vibration amplitude is lower than a threshold value (pre-specified according to the expected structural performance) before a target wind speed.

TL;DR: In this paper , a sparse Gaussian process regression (GPR) model was employed for wind gust forecasting by combining numerical weather prediction (NWP) data and on-site measurements.

TL;DR: In this article , the authors used field measurements, numerical simulations, and wind tunnel tests to systematically investigate triggering mechanism during the sudden first and secondary VIV phenomena of Humen Bridge, along with the structural mode and damping characteristics and VIV aerodynamic mitigation effects.

TL;DR: In this paper , a closed-form solution of a three-dimensional aerodynamic admittance function (3D AAF) is presented based on Ribner's threedimensional spectral tensor theory.

TL;DR: Using a combination of the computational fluid dynamics method of improved delayed detached eddy simulation and sliding grid technology, the effects of one-and two-side windbreak walls on the unsteady aerodynamic performance of a high-speed train running under a crosswind on a double-track railway line with an embankment and the flow-field characteristics around the train were systematically studied as discussed by the authors .

TL;DR: Wang et al. as discussed by the authors presented an approach to predict crosswind force spectra and associated response of tall buildings with rectangular cross-section based on machine learning (ML) technique and random vibration-based response analysis.

TL;DR: Wang et al. as mentioned in this paper presented an approach to predict crosswind force spectra and associated response of tall buildings with rectangular cross-section based on machine learning (ML) technique and random vibration-based response analysis.

TL;DR: In this article , a 3D analysis of an aerodynamic Savonius wind turbine is performed under steady wind conditions, and the inclusion of a deflector is also investigated, and performance compared to the initial design.

TL;DR: Wang et al. as mentioned in this paper studied the influence of high-altitude environment on the diffusion and concentration distribution of hazardous gases after tunnel blasting, a ventilation model for construction tunnel was established based on a tunnel of the Sichuan-Tibet Railway, and the dynamic diffusion of CO at different altitudes was numerically simulated.

TL;DR: In this paper , the authors evaluated the passenger comfort on bridges subjected to crosswinds with different lateral structural behaviors and track conditions, based on the vehicle's accelerations computed with an in-house dynamic train-track-bridge interaction tool, the Mean and Continuous comfort indexes defined by the European norm EN 12299, as well as the Sperling index, have been assessed for distinct scenarios.

TL;DR: In this article , the influence of different factors related to the structure-track-vehicle coupling system in the train's stability against crosswinds, namely the bridge lateral behaviour, the track condition and the train type, was investigated.

TL;DR: In this article , a flexible structure immersed in a flowing fluid may exhibit vortex-induced vibration (VIV) dominated by either a fundamental or a higher-order mode depending on the flow velocity, and the nonlinear energy sink (NES) may work as a promising alternative due to its broadband vibration energy absorption capability.

TL;DR: In this article , a short-term wind speed prediction framework is proposed for bridge traffic control under strong winds, which mainly focuses on improving the prediction accuracy for the timeframe of traffic control during a typhoon.

TL;DR: In this article , the authors proposed a method for predicting the wind direction against the simple automobile model (Ahmed model) and the surface pressure distributions on it by using data-driven optimized sparse pressure sensors.

TL;DR: In this paper , the authors investigated the exceptional wind-induced vibration of the stay cables of a kilometer-level cable-stayed bridge based on the monitoring data and found that the out-of-plane vibration amplitude under the extreme wind is much larger than the in-plane due to the absence of dampers.

TL;DR: In this article , the authors investigated the effect of forest on wind characteristics and found that the modified roughness length (RL) and leaf area index (LAI) have greater impact than LAI on the wind field simulation in the near-surface level.

TL;DR: In this article , a framework is set up to detect and extract periodic thermally-developed wind in a typical U-shaped canyon and its statistical and time-varying wind characteristics are analyzed subsequently.

TL;DR: In this article , the authors compared the predictive capabilities of LES, IDDES and URANS for the flow over a streamlined high-speed train and found that the well-resolved LES is more accurate among the numerical methods used.

TL;DR: In this paper , field observations of aeolian transport over a Gobi surface with 70-94% gravel coverage were performed in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway.

TL;DR: In this paper, field observations of aeolian transport over a Gobi surface with 70-94% gravel coverage were performed in the Hundred Miles windy area along the Lanzhou-Xinjiang High-Speed Railway.

TL;DR: In this article , the effect of the pressure pipe length on the pressure amplitude with various pulsation frequencies was investigated and the full-scale test results for the windproof ability of different windbreak walls and the aerodynamic forces of the train were analyzed.

TL;DR: In this article , four different 6m-high embankment layouts are proposed to replicate realistic wind tunnel configurations with the improved detached eddy simulation (IDDES) method, which helped to estimate the aerodynamics of a leading vehicle when subjected to a block wind profile of 45 m/s at the typical yaw angle of 30°.

TL;DR: In this article, four different 6m-high embankment layouts are proposed to replicate realistic wind tunnel configurations with the improved detached eddy simulation (IDDES) method, which helped to estimate the aerodynamics of a leading vehicle when subjected to a block wind profile of 45m/s at the typical yaw angle of 30°.

TL;DR: A tip-correction-based filtered actuator line model (F-ALM) was proposed by Martínez-Tossas and Meneveau as discussed by the authors , which allows coarser-than-optimal grids by avoiding the associated overprediction of thrust.

TL;DR: In this article , the authors proposed a multi-peak joint probability distribution model for estimating the environmental surface of a bridge in a deep-cut gorge bridge site, where the probability segmentation-based first order inverse reliability method (PSB-IFORM) was used to solve the problem.

TL;DR: In this article , a new moving model rig with a maximum speed of 680 km/h was developed to evaluate aerodynamic performance of trains, thus determining the range of the aerodynamic design parameters.

TL;DR: In this article , the authors presented a study on the short-term prediction of TCs in Northwest Pacific basin via the newly developed Convolutional Long and Short Term Memory (ConvLSTM) network which is able to extract both time-related correlations (involved in the sequence of a single parameter) and parameter-related correlation (among different parameters) from input information of different feature parameters.

TL;DR: In this article , a full-scale testing of a high-speed passenger train under cross winds is introduced to make insight into the wind-induced safety issues, where significant carbody lateral, roll and yaw motions can be observed in the secondary suspension and wheel-rail interface.

TL;DR: In this paper , the effects of wind speed and the height and porosity of the wind barriers on the protective effect for moving trains were investigated considering the aerodynamic characteristics of the moving train.