EFFECT OF MOMENTUM PROVISION IN COMPUTATIONAL FLUID DYNAMICS ON TURBULENT STATISTICS IN URBAN BOUNDARY LAYER
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- SANEMITSU Toshiki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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- IKEGAYA Naoki
- Faculty of Engineering Sciences, Kyushu University
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- HIROSE Chiyoko
- Faculty of Engineering Sciences, Kyushu University
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- TANIMOTO Jun
- Faculty of Engineering Sciences, Kyushu University
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- HAGISHIMA Aya
- Faculty of Engineering Sciences, Kyushu University
Bibliographic Information
- Other Title
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- 都市乱流境界層を対象とした数値流体解析の運動量供給方法による乱流統計量への影響
Description
<p>To reproduce homogeneous flow fields above urban-like turbulent boundary layers in computational fluid dynamics (CFD), numerous CFDs with a limited numerical domain employ periodic boundary conditions in both lateral directions with artificial momentum provision to maintain airflows. Although such artificial momentum sources are clearly different from the momentum provision in wind-tunnel experiments, the effects of these numerical conditions on the airflow in the boundary layer are not well studied. In this paper, therefore, we investigate how the momentum provision differentiates the vertical Reynolds stress and turbulent kinetic energy profiles using large-eddy simulations of airflows over cubical block arrays. </p>
Journal
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- Journal of Environmental Engineering (Transactions of AIJ)
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Journal of Environmental Engineering (Transactions of AIJ) 87 (792), 145-156, 2022-02-01
Architectural Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390853879727783040
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- NII Article ID
- 130008150439
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- ISSN
- 1881817X
- 13480685
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed