A Fundamental Study on the Nonlinear Turbulent Modeling Based on Results of Image Velocimetry for the Flow Passing Through a Porous Media
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- NAKAJO Sota
- The University of Kyoto
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- SHIGEMATSU Takaaki
- Osaka City University
Bibliographic Information
- Other Title
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- 画像計測に基づく多孔質体通過流れの非線形乱流モデリングに関する基礎的研究
- ガゾウ ケイソク ニ モトズク タコウシツタイ ツウカ ナガレ ノ ヒセンケイ ランリュウ モデリング ニ カンスル キソテキ ケンキュウ
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Description
The modeling of turbulence for the flow passing through a porous media is analyzed experimentally by using a priori tests. Velocity field inside and around a porous media is obtained with PTV. Two turbulence models, linear eddy viscosity model and nonlinear model, are tested on different Reynolds number conditions. There is a high correlation in the turbulent stress and the nonlinear velocity gradient. The applicability of the latter model is higher than the former. The model coefficient doesn't depend on the Reynolds number and the size of the spatial average area.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 66 (1), 771-775, 2010
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205321135744
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- NII Article ID
- 130004956674
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- NII Book ID
- AA12508551
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- ISSN
- 18838944
- 18842399
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- NDL BIB ID
- 11235168
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed