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Cited 9 time in webofscience Cited 13 time in scopus
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Wind flow over sinusoidal hilly obstacles located in a uniform flow SCIE SCOPUS KCI

Title
Wind flow over sinusoidal hilly obstacles located in a uniform flow
Authors
Lee, SJLim, HCPark, KC
Date Issued
2002-11
Publisher
TECHNO-PRESS
Abstract
The wind flow over two-dimensional sinusoidal hilly obstacles with slope (the ratio of height to half width) of 0.5 has been investigated experimentally and numerically. Experiments for single and double sinusoidal hill models were carried out in a subsonic wind tunnel. The mean velocity profiles, turbulence statistics, and surface pressure distributions were measured at the Reynolds number based on the obstacle height(h=40 mm) of 2.6 x 10(4). The reattachment points behind the obstacles were determined using the oil-ink dot and tuft methods. The smoke-wire method was employed to visualize the flow structure qualitatively. The finite-volume-method and the SIMPLE-C algorithm with an orthogonal body-fitted grid were used for numerical simulation. Comparison of mean velocity profiles between the experiments and the numerical simulation shows a good agreement except for the separation region, however, the surface pressure data show almost similar distributions.
Keywords
hilly obstacle; numerical simulation; single hill; double hill; turbulence model; flow visualization; TURBULENT
URI
https://oasis.postech.ac.kr/handle/2014.oak/18789
DOI
10.12989/was.2002.5.6.515
ISSN
1226-6116
Article Type
Article
Citation
WIND AND STRUCTURES, vol. 5, no. 6, page. 515 - 526, 2002-11
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이상준LEE, SANG JOON
Dept of Mechanical Enginrg
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