What scaling means in wind engineering: Complementary role of the reduced scale approach in a BLWT and the full scale testing in a large climatic wind tunnel

1st Conference of Computational Methods in Offshore Technology

计算机科学

Flamand, Olivier^1

CSTB, Centre Scientifique et Technique du Batiment, 11 rue Henri Picherit, Nantes

44300, France^1

关键词: Common practices;    Engineering project;    Full-scale testing;    Man-made structures;    Severe weather;    Similitude laws;    Wind engineering;    Wind tunnel experiment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/276/1/012001/pdf
DOI  :  10.1088/1757-899X/276/1/012001

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Wind engineering problems are commonly studied by wind tunnel experiments at a reduced scale. This introduces several limitations and calls for a careful planning of the tests and the interpretation of the experimental results. The talk first revisits the similitude laws and discusses how they are actually applied in wind engineering. It will also remind readers why different scaling laws govern in different wind engineering problems. Secondly, the paper focuses on the ways to simplify a detailed structure (bridge, building, platform) when fabricating the downscaled models for the tests. This will be illustrated by several examples from recent engineering projects. Finally, under the most severe weather conditions, manmade structures and equipment should remain operational. What "recreating the climate" means and aims to achieve will be illustrated through common practice in climatic wind tunnel modelling.