Circulation of a vortex ring generated by pulsating jet flow

Fujio Akagi, Keisuke Kawabata, Youichi Ando, Sumio Yamaguchi, Masato Furukawa

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

In order to use vortex rings for mass and momentum transport, the relationship between the circulation of vortex rings generated continuously by a pulsating jet flow, which are referred to herein as 'cyclic vortex rings', and the conditions of jet flow are investigated experimentally. The results indicate that the formation time at which the cyclic vortex rings reach maximum circulation, i.e., become optimal vortex rings, can be estimated using the concept proposed by Gharib et al. Based on their concept, the optimal vortex rings are formed when the translation velocity of the vortex core becomes equal to the convection velocity of the shear layer of the jet. The translation velocity of vortex rings and the convection velocity of shear layers can be estimated by empirical equations under pulsating jet conditions. Therefore, the formation time of the optimal vortex rings can be estimated from the pulsating jet conditions, when the circulation of vortex rings stop growing and the vortex rings start to become disconnected from the shear layers. The circulation of vortex rings estimated using this method is in good agreement with the measurement data within the measurement error. There exists a specific Strouhal number at which the circulation of the vortex rings reaches the maximum value. This Strouhal number is expected to be the optimal generating condition of cyclic vortex rings for using transportation.

元の言語英語
ホスト出版物のタイトルASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
ページ2911-2920
ページ数10
エディションPARTS A, B, C, D
DOI
出版物ステータス出版済み - 12 1 2011
イベントASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, 日本
継続期間: 7 24 20117 29 2011

出版物シリーズ

名前ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
番号PARTS A, B, C, D
1

その他

その他ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
日本
Hamamatsu
期間7/24/117/29/11

Fingerprint

Vortex flow
Strouhal number
Measurement errors
Momentum

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

これを引用

Akagi, F., Kawabata, K., Ando, Y., Yamaguchi, S., & Furukawa, M. (2011). Circulation of a vortex ring generated by pulsating jet flow. : ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 (PARTS A, B, C, D 版, pp. 2911-2920). (ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011; 巻数 1, 番号 PARTS A, B, C, D). https://doi.org/10.1115/AJK2011-16015

Circulation of a vortex ring generated by pulsating jet flow. / Akagi, Fujio; Kawabata, Keisuke; Ando, Youichi; Yamaguchi, Sumio; Furukawa, Masato.

ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D. 編 2011. p. 2911-2920 (ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011; 巻 1, 番号 PARTS A, B, C, D).

研究成果: 著書/レポートタイプへの貢献会議での発言

Akagi, F, Kawabata, K, Ando, Y, Yamaguchi, S & Furukawa, M 2011, Circulation of a vortex ring generated by pulsating jet flow. : ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D Edn, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011, 番号 PARTS A, B, C, D, 巻. 1, pp. 2911-2920, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011, Hamamatsu, 日本, 7/24/11. https://doi.org/10.1115/AJK2011-16015
Akagi F, Kawabata K, Ando Y, Yamaguchi S, Furukawa M. Circulation of a vortex ring generated by pulsating jet flow. : ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D 版 2011. p. 2911-2920. (ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011; PARTS A, B, C, D). https://doi.org/10.1115/AJK2011-16015
Akagi, Fujio ; Kawabata, Keisuke ; Ando, Youichi ; Yamaguchi, Sumio ; Furukawa, Masato. / Circulation of a vortex ring generated by pulsating jet flow. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D. 版 2011. pp. 2911-2920 (ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011; PARTS A, B, C, D).
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