Effect of Particle Existence on High Reynolds Number Slit Nozzle Gas-Particle Two-Phase Jet
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- YUU Shinichi
- Faculty of Engineering, Kyushu Institute of Technology
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- KOHNO Hiroyuki
- Graduate School of Kyushu Institute of Technology
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- UMEKAGE Toshihiko
- Faculty of Engineering, Kyushu Institute of Technology
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Three-dimensional Eulerian air velocities and Lagrangian particle trajectories are numerically simulated to describe the effect of particle existence on a high Re number (Re=104) gas-particle turbulent jet using two-way coupling and Large Eddy Simulation in which the effects of particle existence on subgrid-scale flows are taken into account. The calculated results of air and particle turbulence characteristics (mean velocity distributions and turbulence intensity distributions) are in good agreement with experimental data obtained using a laser Doppler anemometer. Comparison of the instantaneous air vorticity isocontours of gas-particle and clean air jets reveals the production of vortices and eddies in both initial and transitional regions and the reduction of air turbulence in the developed region by the presence of particles. Based on the model for the effects of particle existence on subgrid-scale flow, states that reduce or enhance air turbulence in high Re number gas-particle flow are discussed.
収録刊行物
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- JSME International Journal Series B Fluids and Thermal Engineering
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JSME International Journal Series B Fluids and Thermal Engineering 44 (2), 204-212, 2001
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282679653205248
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- NII論文ID
- 110003474244
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- NII書誌ID
- AA10888815
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- COI
- 1:CAS:528:DC%2BD3MXltlShsL8%3D
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- ISSN
- 13475371
- 13408054
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- NDL書誌ID
- 5803627
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可