Study on the correlation between the surface turbulent flows and structures of heterogeneous porous mediua
Project/Area Number |
24360073
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Fluid engineering
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Research Institution | Osaka Prefecture University |
Principal Investigator |
SUGA Kazuhiko 大阪府立大学, 工学(系)研究科(研究院), 教授 (60374089)
|
Co-Investigator(Kenkyū-buntansha) |
KANEDA Masayuki 大阪府立大学, 工学研究科, 准教授 (50346855)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2012: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
|
Keywords | 乱流 / 多孔質 / ヘテロ性 / 透過率 / 乱流モデル / 格子ボルツマン法 / PIV / PIV計測 / LES / LBM / 多孔体 / 乱流計測 / 数値解析 / モデリング |
Outline of Final Research Achievements |
PIV measurements and numerical simulations of turbulent flows in the interface regions of heterogeneous porous media are performed. For the PIV measurements, we made porous medium of FEP resin whose refractive index is close to that of water to measure flows inside the porous media. Two dimensional turbulent boundary layers over porous media are also measured and simulated to discuss the flow physics totally. As a result, we observed that in the case that the stream-wise and span-wise permeabilities are much lower than the surface-normal one, the normal fluctuation velocity and thus the Reynolds shear stress are damped because of the blocking effects on the vortex motions penetrating inside the porous medium by the saturated fluid inside the porous medium. By the LBM simulations, we discussed the detailed behaviour of the budget terms of the double averaged turbulence equations and constructed Reynolds stress and k-e models for general porous medium flows.
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Report
(4 results)
Research Products
(67 results)
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[Presentation] ヘテロ多孔体界面乱流のPIV計測2015
Author(s)
飯田 隆徳, 種子尾 彰, 岡部 凌平, 金田 昌之,須賀 一彦
Organizer
日本機械学会関西支部第90期定時総会講演会
Place of Presentation
京都大学(京都府京都市)
Year and Date
2015-03-16 – 2015-03-17
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[Presentation] へテロ多孔体界面乱流のPIV計測2014
Author(s)
種子尾彰,飯田隆徳,金田昌之,須賀一彦
Organizer
第51回日本伝熱シンポジウム
Place of Presentation
アクトシティ浜松(静岡県浜松市)
Year and Date
2014-05-21 – 2014-05-23
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