WEAKLY COMPRESSIBLE LATTICE BOLTZMANN MODEL FOR THE SIMULATION OF FLOWS IN A CYLINDRICAL OSCILLATING WATER COLUMN DEVICE
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- KIOKA Wataru
- 名古屋工業大学 工学研究科社会工学専攻
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- KURONO Kousuke
- 愛知県豊田加茂建設事務所
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- YAMAUCHI Shintaro
- 静岡県交通基盤部
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- FUJISAWA Shinichiro
- 名古屋工業大学大学院 工学研究科社会工学専攻
Bibliographic Information
- Other Title
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- 弱圧縮性二相流格子ボルツマン法による振動水柱型波力発電装置の流体運動解析
- ジャク アッシュクセイ ニソウリュウ ゴウシ ボルツマンホウ ニ ヨル シンドウ ミズバシラガタハリョク ハツデン ソウチ ノ リュウタイ ウンドウ カイセキ
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Abstract
A lattice Boltzmann model (LBM) for simulating weakly compressible binary fluids with density contrast is proposed based on the lattice Boltzmann equations (LBE) presented by He et al. (1999). The present LBM is developed combining the LBE proposed by Zheng et al. (2006) and slightly modified by Zu and He (2013) for interface capturing with the LBE of He et al.(1999) for simulating the velocity and pressure fields. The combined LBE is capable of simulating multiphase flows with moderate density ratios. The dynamics of high-speed air flow and pressure fluctuation inside the fixed cylindrical oscillating water column chamber are then simulated numerically using the density ratio of 20. The behaviors of air flow and pressure fluctuation agree well with the experimental results.
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) 72 (2), I_43-I_48, 2016
Japan Society of Civil Engineers