Year: 2024
Type: article
Abstract: This research simulates the behavior of a tornado on a double-slope roof using the Ward tornado generator and the [Formula: see text] turbulence model. The effects of different ground roughness, slope angle, and wind field position on the tornado load characteristics of gable roofs were studied. The tornado-generating device established the tornado field under various working conditions, and the simulation results were compared with the experimental data to verify the reliability of the simulation results. The wind pressure distribution of gable roofs with four different slope angles was analyzed to find the most unfavorable roof condition of the tornado field. The gable roof's aerodynamic and wind pressure characteristics at various places in the tornado field were explored by comparing the wind pressure coefficients at five distinct positions on smooth and rough ground. The lift-drag and wind pressure coefficients of five kinds of ground roughness were calculated to determine the influence of different ground roughness on the aerodynamic force and partial pressure distribution of the gable roof. The ground roughness reduces the vortex ratio because the ground roughness reduces the maximum tangential wind speed and the radius of the vortex core. Therefore, the gable roof's suction increases as the updraft increases.
Source: Scientific Reports
Authors: Zhongya Yuan, Xueyan Wang, Yanzhen Jia, Wenlong Cao, Jian Yang, Jianhui An
Language: English
Topic: Wind and Air Flow Studies
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,590
Award: 中俄原油管线沿线大兴安岭多年冻土活动层的变化研究
OpenAlex ID: W4403731069