The Wind Characteristics of Tall Cylinder Buildings with Vertical-Grooves

DOI

10.2991/aece-16.2017.136How to use a DOI?

Keywords

tall cylinder buildings; wind characteristics; wind tunnel test; large eddy simulation

Abstract

The Reynolds number of flow field around circular cylinders is usually high under strong wind for most full-scale tall buildings, which is difficult to achieve in most wind tunnel tests. To explore the wind characteristics of tall cylindrical buildings with vertical-equidirectional grooves from subcritical to transcritical flow, wind tunnel tests and full-scale large eddy simulations were carried out. The results showed that the rectangular-grooves narrow the wake width due to the downstream movement of the separation point and the deeper grooves cause smaller mean pressure. Furthermore, larger groove roughness leads to lower frequency of vortex shedding and the Strouhal number remains at the range from 0.15 to 0.35.The drag coefficient of rough cylinders is 2~3 times as large as that of smooth cylinders under the trend of decrease.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Weibin YUAN
AU  - Hao CHEN
AU  - Zhao WANG
PY  - 2016/12
DA  - 2016/12
TI  - The Wind Characteristics of Tall Cylinder Buildings with Vertical-Grooves
BT  - Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering
PB  - Atlantis Press
SP  - 632
EP  - 637
SN  - 2352-5401
UR  - https://doi.org/10.2991/aece-16.2017.136
DO  - 10.2991/aece-16.2017.136
ID  - YUAN2016/12
ER  -