Výsledky vyhledávání - "Saito, Hironosuke"

The detailed structure of randomization process of free shear layers

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集第40回 = JAXA Special Publication: Proceedings of the 40th JAXA Workshop on Investigation and Control of Boundary-Layer Transition. :1-4

The free shear layer is suitable for understanding the basic mechanism of randomization. Sound from a loud-speaker was used for introducing ordered velocity fluctuation in the layer. Three kinds of shear layer were tested and compared. A quantitative

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::d30536d7d4af090ca765c0167b1258d6
http://id.nii.ac.jp/1696/00005516/

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The randomization of two-dimensional wake by random noise

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集第39回 = JAXA Special Publication: Proceedings of the 39th JAXA Workshops on Investigation and Control of Boundary-Layer Transition. :9-12

An experiment was carried out on the randomization process of a wake excited by random sound. The randomization is accelerated by random noise as well as by sinusoidal sound composed of seven distinct frequencies. The elementary-wave analysis method

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::d64e23b62f8b0b959a0c4e26bf1ceaf0
http://id.nii.ac.jp/1696/00005642/

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Detailed structure of the randomizing process in a two-dimensional wake

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集第37回・第38回 = JAXA Special Publication: Proceedings of the 37th and 38th JAXA Workshops on Investigation and Control of Boundary-Layer Transition. :53-56

An experiment was made in the wake behind a strip of screen in the uniform flow. The wake was excited by various kinds of sound introduced from a loudspeaker. One purpose is to compare the turbulent wakes created by various sounds. The close similari

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::5c2f17563d696f6bb74b624e9b189f7c
http://id.nii.ac.jp/1696/00005929/

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Experiments on the randomization in a two-dimensional wake

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

A two-dimensional wake was formed behind a fine-mesh screens placed perpendicular to the uniform flow, The transition process in the wake was observed by a hot-wire anemometer. The starting period of the process is the linear growth of small-amplitud

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::1a47512748535519638027540a6f4af3
http://id.nii.ac.jp/1696/00005918/

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風の中のはためき

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集第35回・第36回 = JAXA Special Publication: Proceedings of the 35th and 36th JAXA Workshops on Investigation and Control of Boundary-Layer Transition. :23-26

Experiments were carried out on the motion of flying flags in wind tunnel. The motion was observed by both motion and still cameras. The velocity fluctuation was measured by a hot-wire anemometer. It is clear that the motion is classified in two kind

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::a3df1ecb7ba9ff7dacc34a9fb9674b5c
http://id.nii.ac.jp/1696/00006184/

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Carps swim in the wind

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Kites are the most popular toy in the world. In Japan people enjoy carps swimming in the fragrant May wind. They belong to the same family from the fluid dynamical viewpoint. We have made wind-tunnel experiments on the performance of carp model. As a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c98183b12b159a54f6391aee897cf2f4
http://id.nii.ac.jp/1696/00006198/

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細條流の遷移と破断

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集第33回・第34回 = JAXA Special Publication: Proceedings of the 33rd and 34th JAXA Workshops on Investigation and Control of Boundary-Layer Transition. :55-58

The liquid jet into air has been investigated in various fields, including bubble jet printer and polymer extrusion. A simple, fundamental experiment was made. The round jet shows the random nature of breakdown. The square jet shows a twisting and ea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::2a3631741d1bdcc4c1fd5af16c5f9f52
http://id.nii.ac.jp/1696/00006565/

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小さいレイノルズ数での渦列の形成

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 航空宇宙技術研究所特別資料: 境界層遷移の解明と制御研究会講演論文集第29回・第30回 = Special Publication of National Aerospace Laboratory: Proceedings of the 29th and 30th NAL Workshops on Investigation and Control of Boundary-Layer Transition. 56:23-26

Experiments were carried out in a small water tunnel. The formation of vortex street behind cylinders was investigated in Reynolds number range from 20 to 100 by the simultaneous use of hydrogen bubble technique and hot-wire velocimeter. The boundary

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::a01b0a4cab3c62b56d59b136062d0d5d
http://id.nii.ac.jp/1696/00038192/

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The interaction of wakes behind circular cylinders of various sizes

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Publikováno v: 宇宙航空研究開発機構特別資料: 「境界層遷移の解明と制御」研究会講演論文集（第43回・第44回) = JAXA Special Publication: Proceedings of the 43rd and 44th JAXA Workshops on "Investigation and Control of Boundar-Layer Transition".

第43回（2008年10月2日-10月3日）「境界層遷移の解明と制御」研究会; 第44回（2009年3月26日-3月27日）「境界層遷移の解明と制御」研究会
43rd JAXA Workshops on "Investigation and Control of Boundar-Layer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::18d16f75f2f415b1540b8898731741b4
http://id.nii.ac.jp/1696/00004881/

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The structure of wakes behind a group of cylinders

Autor: Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::ffe2023a5fc0e4ca05fe2cadf6ab1626
http://id.nii.ac.jp/1696/00004874/

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