Wei Zhong

TL;DR: In this paper, a set of model scale experiments were carried out, to investigate the influence of different transverse fire locations on maximum smoke temperature under the tunnel ceiling, and the results showed that the restriction effect of the sidewalls of tunnels cause the maximum smoke temperatures under the ceiling to increase compared with the unconfined space, even fires occurs at the longitudinal centerline.

TL;DR: In this paper, the effect of vertical shaft height on natural ventilation in urban road tunnel fires was investigated, and two special phenomena, plug-holing and turbulent boundary-layer separation were observed, both of which will influence the impact of smoke exhaust.

TL;DR: In this article, the maximum smoke temperature under the ceiling complies with the Alpert equation in which fire keeps distant from the walls in subway stations whereas fire adjacent to the end wall leads to the maximum air pollution decaying exponentially against the increased distance between the fire and the wall.

TL;DR: In this paper, the influence of longitudinal wind on natural ventilation with vertical shaft in a road tunnel fire was investigated numerically by large eddy simulation, and the smoke flow characteristics of a tunnel fire under the combined function of the longitudinal wind and stack effect of shaft were analyzed.

TL;DR: Wang et al. as discussed by the authors analyzed the effect of longitudinal ventilation velocity on smoke flow field, temperature distribution within smoke layer and height of smoke layer, generation mechanism of smoke bifurcation flow was revealed.