Showing papers in "Journal of Wind Engineering and Industrial Aerodynamics in 2007"

TL;DR: In this article, a numerical study of the wind speed conditions in passages between parallel buildings has been conducted for a wide range of passage widths with the commercial Computational Fluid Dynamics (CFD) code Fluent 6.1.22.

TL;DR: In this paper, a working group was organized by the Architectural Institute of Japan (AIG) to make a guideline for CFD prediction of the wind environment, and various comparative studies were carried out as follows.

TL;DR: Gast et al. as discussed by the authors used numerical simulations to investigate the macro-flow dynamics and scale dependency of impinging jets with applications to downburst related high intensity winds, and provided a first spatio-temporal flow model for wind loading on structures due to downbursts.

TL;DR: In this paper, the surface shear stress of uniform urban-type surfaces of two different area densities were performed in a wind tunnel, together with direct measurements of the surface drag, and the aerodynamic characteristics of each surface were determined and compared.

TL;DR: In this paper, a 1:40 scale wind-tunnel modelling of the Silsoe 6m Cube at the University of Auckland is reported, where the authors compare the high-frequency end of each spectrum with the lowfrequency end.

TL;DR: In this article, the authors studied the influence of the train cross-sectional shape and length on the compression wave produced by the vehicle entering the confined area, and found that the crosssectional shape was not influential as long as the blockage ratio, namely the ratio between the train and tunnel crosssectional areas, is constant.

TL;DR: In this paper, a series of field measurements lasting 45 days have been conducted on the Dongting Lake Bridge by deploying accelerometers, anemometers and rain gauge for continuous monitoring.

TL;DR: In this article, the authors investigated wind-induced internal pressures of low-rise buildings with realistic dominant opening and leakage scenarios, and found that internal pressure resonance occurs for the dominant opening (3.3% open ratio) with building leakage.

TL;DR: In this paper, the authors consider the history of wind engineering in five rather arbitrary time periods, namely, the traditional period (up to 1750), the empirical period (1750-1900), the establishment period (1900-1960), the period of growth (1960-1980), and the modern period (1980 onwards).

TL;DR: In this article, two splitter plates with the same length as the cylinder diameter are placed along the horizontal centerline; one is upstream of the cylinder and the other is in the near wake region, respectively.

TL;DR: In this paper, a large-scale experiment was conducted in 2002, during which seven mobile towers were deployed in a linear array to obtain high-resolution data from outflows and two extreme events were captured: a rear-flank downdraft of a supercell, and a derecho.

TL;DR: In this paper, a code for the assessment of wind comfort and wind danger in the built environment in the Netherlands is presented, which is not another legal building requirement, but a helping hand to include wind comfort in a building program.

TL;DR: In this article, the authors presented a mathematical analysis of the equations of debris flight, in particular the two-dimensional motions of two types of debris are considered, and the results are compared as far as possible with experimental data.

TL;DR: In this article, the authors presented some selected results obtained from the full-scale measurements of wind effects on the Jin Mao Building during the passage of Typhoon Rananim in August, 2004.

TL;DR: In this article, the authors studied the flow characteristics on and around an airfoil at moderate Reynolds number to understand the generation mechanism of tonal noise from a symmetrical airfoin NACA0018 in a uniform flow.

TL;DR: In this paper, a series of wind tunnel tests on typical tall building models using the high-frequency force balance technique was performed to study the base bending moment (BBM) response and the mean BBM of grouped high-rise buildings.

TL;DR: In this article, the structural challenges concerning wind action, eigenfrequencies, stiffening and shape optimization with special focus on the inlet guide vanes are discussed, and actual research results concerning pre-stressed concrete tower constructions for wind turbines are focused on.

TL;DR: In this article, a general probabilistic model, based on reliability approach, is outlined and applied for assessment of road vehicle stability in windy environments, and the numerical model is defined on a finite set of basic variables with prescribed Probabilistic characteristics.

TL;DR: In this article, the transverse galloping stability of triangular cross-section bodies has been systematically analyzed and the results from these dynamic tests are in very good agreement with the results obtained from the static ones.

TL;DR: In this article, it is argued that the local crossflow velocity ratio, V / u, is an important parameter for the orifice and the experimental results support this (as do some simple CFD calculations).

TL;DR: A combined CFD–HAM approach consisting of implementing catch-ratio charts resulting from CFD simulations into the HAM model and showing that the accuracy of the HAM-simulation results is to a large extent determined by the time resolution of the meteorological input data and by the data-averaging technique used for these data.

TL;DR: In this article, the authors measured flow past simulated sinusoidal hills in an ABLWT that modeled typical full-scale complex terrain for many wind turbine locations in the Altamont Pass, California, USA.

TL;DR: In this article, a combination of eigenmodes calculated by POD analysis of fluctuating wind pressure is used to estimate the largest load effects for bending moment and shear force.

TL;DR: Chen et al. as discussed by the authors proposed a nonparametric deterministic-stochastic hybrid (NDESH) model for characterizing and simulating nonstationary thunderstorm downburst wind fields, and two sets of full-scale wind speed records were fitted in this model.

TL;DR: This study presents a means to characterize this phenomenon using Fourier and wavelet spectra and the GPS Distortion Signature, and shows that multipath effects can still be removed by filtering to permit a rare comparison of the relative contributions of background and resonant responses in full scale to wind tunnel predictions.

TL;DR: In this article, a 1:20 scale, aeroelastic failure model of a house was used to evaluate the flight mechanics of a scaled 1.2m×2.4m roof sheathing panel in an open country, turbulent boundary layer.

TL;DR: In this article, the effects of roughness blocks on the atmospheric boundary layer flow over a two-dimensional low hill with maximum slope 0.21 were investigated, and the results showed that speedup ratio depends strongly on the surface condition in the middle layer, the inviscid but rotational part of the outer layer defined by HLR theory.

TL;DR: In this paper, the power law exponents of the mean wind speed profiles are approximately 0.2 to 0.4, respectively, at altitudes between 50 and 340m.

TL;DR: In this paper, a large eddy simulation (LES) was carried out to investigate the turbulent boundary-layer type of flows over a hill-shaped model with a steep slope.