Physical modeling of complex airflows developing above rural terrains

Kozmar, Hrvoje (2012) Physical modeling of complex airflows developing above rural terrains. = Physical modeling of complex airflows developing above rural terrains. Environmental Fluid Mechanics, 12 (3). pp. 209-225. ISSN 1567-7419. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2012). Točan broj autora: 1.

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Official URL: http://link.springer.com/article/10.1007/s10652-01...

Abstract

The rural atmospheric boundary layer (ABL) flow was reproduced in a wind tunnel at three different simulation length scales to investigate possible effects of the simulation length scale on flow characteristics. Performance of truncated vortex generators developed for part-depth ABL wind-tunnel simulations was tested in rural terrain exposure against the full-size Counihan vortex generators. A procedure to design the ABL developing above rural type terrain has been described. The 1:395 and 1:236 simulations were created as full-depth simulations, i. e., wind characteristics throughout an entire ABL were reproduced in the wind tunnel. The 1:208 simulation was a part-depth simulation, i. e., only a lower 70 of the ABL was experimentally modelled. The projected scaled-up ABL thicknesses are 395, 354, and 416 m full-scale in the 1:395, 1:236, and 1:208 simulations, respectively. Experimental results show similar trends in all three configurations not depending on the simulation length scale factor. This clearly indicates a possibility to physically, in the wind tunnel, reproduce the same rural atmospheric airflows at different simulation length scales. © 2011 Springer Science+Business Media B.V.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): airflow; boundary layer; modeling; rural atmosphere; scale effect; turbulence; wind tunnel
Subjects: TECHNICAL SCIENCE
Divisions: 1400 Department of fluid mechanics > 1420 Chair of environment and construction aerodynamics
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2012)
Date Deposited: 28 Apr 2015 10:02
Last Modified: 27 Jul 2017 11:01
URI: http://repozitorij.fsb.hr/id/eprint/3950

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