Performance Improvement of Swirl Type Micro Bubble Generator
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- KAWAGUCHI Kiyoshi
- 富山大学学術研究部工学系
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- KASE Atsushi
- 富山大学学術研究部工学系
Bibliographic Information
- Other Title
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- 旋回流式マイクロバブル発生器の性能向上
- 旋回流式マイクロバブル発生器の性能向上(第2報)解析による渦流室入口径が気泡径に及ぼす影響
- センカイリュウシキ マイクロバブル ハッセイキ ノ セイノウ コウジョウ(ダイ2ホウ)カイセキ ニ ヨル カリュウシツイリグチケイ ガ キホウケイ ニ オヨボス エイキョウ
- (2<sup>nd</sup> Report: Effect of Inlet Diameter of Swirl Chamber on Bubble Diameter by Analysis)
- (第2報:解析による渦流室入口径が気泡径に及ぼす影響)
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Description
<p>Micro bubbles measuring tens of micrometers or less in diameter have recently been paid much attention. Swirl-type, pressurizing dissolution, and perforated plate methods have been proposed for micro bubble generation. The swirl-type method can generate micro bubbles even under low-pressure power in a simple structure. The enlarged inlet diameter of the swirl chamber can reduce the average bubble diameter. This study examined the effect of the swirl chamber inlet diameter on the flow around chamber outlet in a swirl-type micro bubble generator by numerical analysis. The Inlet diameter of the swirl chamber was changed to 30 mm, 60 mm, and 90 mm, the flow velocity distribution and the wall shear stress around the chamber outlet were calculated. As a result, when the inlet diameter of the swirl chamber was enlarged, it was clarified that the circumferential flow velocity and the wall shear stress around the chamber outlet increased, which reduced the average bubble diameter.</p>
Journal
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- JAPANESE JOURNAL OF MULTIPHASE FLOW
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JAPANESE JOURNAL OF MULTIPHASE FLOW 34 (3), 427-435, 2020-07-31
THE JAPANESE SOCIETY FOR MULTIPHASE FLOW
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Details 詳細情報について
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- CRID
- 1390004222633741696
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- NII Article ID
- 130007924654
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- NII Book ID
- AN10088286
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- ISSN
- 18815790
- 09142843
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- NDL BIB ID
- 030664120
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed