University of Birmingham The physical simulation of thunderstorm downbursts using an impinging jet
University of Birmingham The physical simulation of thunderstorm downbursts using an impinging jet
复制标题
DOI：
--
复制
发表时间：
2009
影响因子：
4.8
通讯作者：
McConville
中科院分区：
文献类型：
--
作者：
McConville
本文概述了一次雷暴暴暴的物理模拟结果（按1:70 1:100的几何比例尺）。为了产生下爆的时间依赖性，研究了三种不同的方法：直接控制风扇和通过两种不同类型的开口。每种方法之间存在相似之处，尽管从一种方法获得的结果更受欢迎，因为它们似乎与下行气流速度无关。发现了每个实验之间显著的运行-运行差异，并且通常发现用10运行集合平均值来解释结果是有益的。还进行了一次模拟转换下爆的尝试，结果显示与全尺寸数据比较有利。
This paper outlines the results of a physical simulation (at a 1:700 1:1000 geometric scale) of a thunderstorm downburst. Three different methods are examined in order to generate the time dependent nature of a downburst: directly controlling the fans and via two different types of opening apertures. Similarities are shown to exist between each method, although the results obtained from one approach are favoured since they appear to be independent of the downdraft velocity. Significant run-to-run variations between each experiment are discovered and in general it is found beneficial to interpret the results in terms of 10 run ensemble averages. An attempt to simulate a translating downburst is also undertaken and the results are shown to compare favourably with full-scale data.