Drag of a Laser Trapped Fine Particle in a Microregion
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- Miwa Masafumi
- Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima, Minami-josanjima, Tokushima 770-8506, Japan
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- Juodkazis Saulius
- Satellite Venture Business Laboratory, The University of Tokushima, Minami-josanjima, Tokushima 770-8506, Japan
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- Misawa Hiroaki
- Department of Ecosystem Engineering, Graduate School of Engineering, The University of Tokushima, Minami-josanjima, Tokushima 770-8506, Japan
書誌事項
- タイトル別名
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- Drag of a Laser Teapped Fine Particle in a Microregion.
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抄録
To observe hydrodynamics in microregions, we applied laser scanning manipulation to measure the drag acting on a fine glass bead moving in mineral oil sandwiched between two glass plates (the thickness of the oil layer was a 33 and 64 μm). We measured the maximum velocity, VM, of a laser trapped bead at which the bead was released. This allowed us to quantitatively determine the drag, the drag coefficient, CD, and the Reynolds number, R, of the particle in the microregion of a viscous fluid. As a result, the minimum CDR was obtained midway between the two glass plates, and the CDR increased closer to the walls. Also, the distribution of CDR was in good agreement with the values calculated using the equation for wall effect in macroregions (over 0.1 mm).
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 39 (4A), 1930-1933, 2000
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681230418816
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- NII論文ID
- 110004078254
- 210000046967
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- NII書誌ID
- AA10457675
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- COI
- 1:CAS:528:DC%2BD3cXivVKlsro%3D
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 5362387
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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