David Burton

TL;DR: In this paper, the slipstream of high-speed trains is investigated in a wind tunnel through velocity flow mapping in the wake and streamwise measurements with dynamic pressure probes, and the influence of the modelling ballast and rail or a flat ground configuration on the wake structure and corresponding slipstream results are also presented.

TL;DR: In this paper, the authors investigated how the time-averaged flow structures vary with frontal aspect ratio (AR = 1.9), and found that the separation over the back slant is affected by the AR, and this in turn has a significant effect on the circulation in the c-pillar vortices.

TL;DR: In this paper, the authors compared three widely used turbulence models, URANS, SAS and DES, to predict the slipstream of a full-featured generic train model, and the results were compared with wind-tunnel experimental data to determine the fidelity of the models.

TL;DR: In this paper, a scaled moving model technique for analysing the slipstream of a high-speed train (HST) with the view of applying this methodology for checking TSI compliance in the design phase of a HST is assessed.

TL;DR: In this article, the effect of relative ground motion on slipstream for three different ground/wheel configurations was investigated, and it was concluded that its effect is mainly restricted to be within the bogie regions, with limited influence on the wake behind the train.