Wind tunnel analysis of the slipstream and wake of a high-speed train

被引：128
作者：
Bell, J. R. [1 ]
Burton, D. [1 ]
Thompson, M. [1 ]
Herbst, A. [2 ]
Sheridan, J. [1 ]
机构：
[1] Monash Univ, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
[2] Bombardier Transportat, Ctr Competence Aero & Thermodynam, Vasteras, Sweden
来源：
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 2014年 / 134卷
关键词：
Slipstream; Induced flow; High-speed train aerodynamics; Ground vehicle wake; Transient wake; VORTEX; IDENTIFICATION; AERODYNAMICS; DRAG;
D O I：
10.1016/j.jweia.2014.09.004
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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. The flow mapping is used to explain the familiar slipstream characteristics of high-speed trains, specifically the largest slipstream velocities in the near wake. Further, the transient nature of the wake is explored through frequency and probability distribution analysis. The development of a wind tunnel methodology for slipstream assessment is presented and applied, comparing the output to full-scale results available in the literature. The influence of the modelling ballast and rail or a flat ground configuration on the wake structure and corresponding slipstream results are also presented. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：122 / 138
页数：17
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