Numerical simulation of flow around a circular cylinder with porous body at its periphery
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- YUYA HATA
- Department of Aeronautics and Astronautics, Kyushu University
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- NAGAI SHUHEI
- Department of Aeronautics and Astronautics, Kyushu University
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- OHYA YUJI
- RIAM, Kyushu University
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- TSUJI MINAKO
- Department of Aeronautics and Astronautics, Kyushu University
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- UCHIDA TAKANORI
- RIAM, Kyushu University
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- KARASUDANI TAKASHI
- RIAM, Kyushu University
Bibliographic Information
- Other Title
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- ポーラス状の外側部をもつ円柱まわりの流れの数値シミュレーション
Description
The flow past a circular cylinder surrounded by a porous body was numerically investigated using a 2D-DNS code for various porosity Ct. We find strange wake structures of the cylinder-porous body. The wake flows are classified into three regimes. Regime I (Ct <1.0) : Karman vortex street from the inside solid cylinder is clearly formed. A pair of separated shear layers from the outside porous body surround the inside vortex street and form the vortex street in the far downstream. Regime II (1.5 < Ct < 10) : The inside Karman vortex street disappears. Regime III (15 < Ct ) : The Karman vortex street from the outside porous body is dominant. In this report, the characteristics of three wake structures are investigated in detail.
Journal
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- PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING
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PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 21 (0), 257-262, 2010
Japan Association for Wind Engineering
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Details 詳細情報について
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- CRID
- 1390282680570765056
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- NII Article ID
- 130005021412
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed
