Showing papers in "Journal of Wind Engineering and Industrial Aerodynamics in 1979"

TL;DR: A new technique is described, involving a digital correction technique using the known tubing transfer function, which allows considerably longer tubes and higher frequency response to be obtained than with other methods, and furthermore, phase distortion is effectively eliminated.

TL;DR: In this article, a Monte Carlo method was used for the assessment of wind loads, and the maximum likely error of the first-order integral method was a 7.6% underestimate, but the error was less than 1% for 87% of practical design cases.

TL;DR: In this paper, an analytical expression for the factors (called wind velocity gust factors) by which the mean wind speed is scaled to obtain a maximum gust speed is derived, based on the assumptions of the horizontal wind velocity spectrum being of the von Karman form, and the probability distribution of the vertical wind velocity being of gaussian form.

TL;DR: In this paper, the influence of the high-rise building on the amplification of the wind speed at ground level is investigated using the techniques of field observation and wind tunnel experiments, and the mechanism of the occurrence of amplification of wind speeds at ground-level is analyzed in connection with the height of the tall building, the high blocks, the configuration of the building, width of the streets, the wind direction, etc.

TL;DR: In this article, the authors examined the effect of the height of a tower on the galloping behavior of a full-scale tower with its wake vortex system in simulated natural winds.

TL;DR: In this article, the authors describe an experimental and theoretical investigation into the flow between a long low cuboid building placed upwind of a tall cuboid in a simulated atmospheric boundary layer.

TL;DR: In this paper, it is argued that for temperate latitudes, where fully developed weather systems are the dominant cause of strong winds, the extreme value distribution is a Fisher-Tippett (Type I).

TL;DR: In this article, the authors deal with wind environmental problems around buildings which, recently, have given cause for concern in Japan and consider the general trend of handling such problems, and a short history of how such problems came into being.

TL;DR: For Reynolds number, Re, in the range 3 × 10 4 Re 5, mean pressures are measured on a square section cylinder with a span-to-side ratio of 18.0:1, using five different sets of end plates as mentioned in this paper.

TL;DR: In this paper, the authors describe the windloading mechanism for three widely used roofing elements, and the experimental results obtained give a reliable basis for designing more economic roofing systems, which can be used to design more economic roofs.

TL;DR: In this paper, a two-storey house at Aylesbury, England, built by the Building Research Establishment for the full-scale measurement of wind pressures, has been modelled at 1:500 scale in a boundary layer wind tunnel so that the reliability of simulation could be verified for low-rise buildings.

TL;DR: In this paper, the effects of the length scale of the approaching turbulence on the base pressure of a square prism normal to the wind were investigated, and it was found that these effects are probably small.

TL;DR: In this paper, the effect of wall-roughness on the wind pressure of block-type buildings has been studied. But the influence of some of the buildings' features usually encountered in practice such as balconies, parapets and root-superstructures has experienced little attention.

TL;DR: In this paper, a flow stabilizing device based on the pressure energy derived at the forward part of the body and which provides fluid ejections to invigorate the otherwise debilitated boundary layer is presented.

TL;DR: In this article, the average direction of the wind at ground level is determined by a flow visualization technique, and when necessary, additional measurements are carried out, applying an optical dynamometer.

TL;DR: In this article, a model study of the behavior of buoyant plumes when released at ground level in a turbulent shear layer reveals that significant shear flow velocities may delay significant lofting of the plume.

TL;DR: In this article, a family of thick turbulent boundary layers with different characteristics was generated by the counter-jet technique and used to simulate neutral atmospheric surface layers, which were used to examine the response of the flowfield near a building model to variations in the characteristics of these turbulent layers.

TL;DR: In this paper, the authors used a family of simulated neutral atmospheric surface layers to determine the response of the wind loads on a building model, as well as the associated flowfield near it, to variations in the characteristics of these surface layers.

TL;DR: In this article, it has been discovered by both wind-tunnel tests and theoretical analysis that the aeroelastic instability with typical nonlinear aerodynamic behaviour was responsible for the failure of these structures.

TL;DR: In this paper, a wind-tunnel investigation was conducted to determine the effectiveness of boundary-layer control on the cab of a tractor to reduce the aerodynamic drag on a tractor-trailer truck.

TL;DR: In this paper, a full-scale instrumentation as well as some results are described, and a comparison with results of a boundary-layer wind-tunnel test is given.

TL;DR: In this article, the authors measured the time-averaged pressure distributions along the surface of a circular cylinder placed in a turbulent plane mixing layer, in order to clarify the aerodynamic forces acting on the cylinders, together with the flow patterns around them.

TL;DR: The torsional modes of vibration of bridges do not in general involve pure rotation about the elastic axis of the deck structure, but instead, the complex motion can be thought of as rotation about some point vertically above or below the equilibrium position of the axis as mentioned in this paper.

TL;DR: In this paper, the dispersion of odours around pig houses has been investigated in an atmospheric boundary-layer wind tunnel and the experiments have been carried out to study the effect of the variation of the different variables on dispersion and deduce emission conditions under which a minimum of nuisance can be expected in the neighbourhood.

TL;DR: In this paper, the aerodynamic effects of cooling towers on the local low-level concentration of pollutants emitted from nearby stacks were investigated in a wind tunnel and the results showed that the ground-level concentrations increased heavily in the vicinity of the cooling towers, compared with those of an isolated stack.