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

页码：122 / 138

页数：17

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