書誌事項
- タイトル別名
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- Numerical Analysis of a Single Rising Bubble Using Boundary-Fitted Coordinate System.
- キョウカイ テキゴウ コウシ ニ ヨル タンイツ ジョウショウ キホウ ノ ス
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A numerical method is developed to simulate the unsteady axisymmetric flow with a free surface. The method is based on a finite-volume solution of the equations on an orthogonal curvilinear oordinate system. A new iteration technique is used for the boundary condition of the free surface to stabilize the solution. The method is applied to simulate an unsteady motion of a single deformed bubble rising through a quiescent liquid. The numerical results show quantitatively good agreement with those of experiments and calculations of others. In the present study, the transitional phenomena of the initially spherical bubble in reaching the steady state are investigated. It is known experimentally that the rising bubble begins to show an unsteady three-dimensional (spiral or zigzag) motion beyond certain critical Reynolds and Weber numbers. Our numerical results of the axisymmetric flow show unsteady shape oscillations in the parameter range of the three-dimensional motions.
収録刊行物
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- 日本機械学会論文集B編
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日本機械学会論文集B編 61 (586), 1976-1983, 1995
一般社団法人 日本機械学会
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詳細情報
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- CRID
- 1390001205893962240
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- NII論文ID
- 110002394417
- 130004221731
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- NII書誌ID
- AN00187441
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- COI
- 1:CAS:528:DyaK2MXns1Kqtb0%3D
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- ISSN
- 18848346
- 03875016
- http://id.crossref.org/issn/03875016
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- NDL書誌ID
- 3608238
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- 本文言語コード
- ja
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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