Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Eiichi Nishida"'
Publikováno v:
Journal of Fluid Science and Technology, Vol 19, Iss 2, Pp JFST0009-JFST0009 (2024)
The present paper focuses on the synchronization behavior of vortex shedding in in-line tube banks with and without acoustic resonance. We have studied the characteristics of acoustic resonance generated by in-line tube banks with a tube pitch ratio
Externí odkaz:
https://doaj.org/article/9b0c2d12cc1e49a48eacf6c68c854c40
Publikováno v:
Journal of Fluid Science and Technology, Vol 18, Iss 1, Pp JFST0018-JFST0018 (2023)
In the present paper the attention is focused on effects of tube pitch ratios of in-line tube banks on acoustic resonance and vortex shedding. We examined the characteristics of the acoustic resonance in the tube banks with tube pitch ratios ranging
Externí odkaz:
https://doaj.org/article/4b651e3bb96b4e09a44ddb4399cbd7fb
Publikováno v:
Journal of Fluid Science and Technology, Vol 3, Iss 6, Pp 787-795 (2008)
The effect of simple spiral fin around a bare tube on Karman vortex shedding was experimentally investigated. We measured the distributions of the mean velocity, the intensity of velocity fluctuation, the spectrum of velocity fluctuation and the cohe
Externí odkaz:
https://doaj.org/article/2b18b7e83b084cddafb3ab85610a4215
Publikováno v:
Journal of Fluid Science and Technology, Vol 3, Iss 6, Pp 805-813 (2008)
This paper focuses on the relationship between acoustic resonance and vortex shedding from the tube banks of a boiler plant. We have built a model similar to the actual boiler plant to clarify the characteristics of acoustic resonance phenomena and v
Externí odkaz:
https://doaj.org/article/47ad3d45ce2c4d18a460ea2359eae1d8
Autor:
Hiromitsu HAMAKAWA, Takaaki ADACHI, Hiroki MATSUOKA, Kazuki HOSOKAI, Eiichi NISHIDA, Eru KURIHARA, Hidechito HAYASHI
Publikováno v:
Journal of Fluid Science and Technology, Vol 9, Iss 3, Pp JFST0053-JFST0053 (2014)
This study focuses on the characteristics of the Aeolian tone and Karman vortex shedding from a circular cylinder with a solid spiral fin. The fin pitch ratios range from 0.11 to 0.80. We measured the turbulence intensity, the spectrum of velocity fl
Externí odkaz:
https://doaj.org/article/9b4ea56392a34ca78f96107cfce74203
Publikováno v:
The Proceedings of the Dynamics & Design Conference. 2022:615
Autor:
Hiromitsu Hamakawa, Yuta Asai, Hidechito Hayashi, Masanori Miyazaki, Eiichi Nishida, Eru Kurihara
Publikováno v:
Journal of Thermal Science. 26:378-384
The present study focuses on the prediction of acoustic absorption performance of a perforated plate with air jets by theoretical calculations. In addition, we experimentally measured the flow rate, internal pressure, acoustic pressure, and transfer
Publikováno v:
The Proceedings of the Dynamics & Design Conference. 2020:606
Publikováno v:
Fluid-Structure-Sound Interactions and Control ISBN: 9789811075414
In the present paper, the attention was focused on the effect of flow separation, which occurred at upstream of tube banks, on acoustic resonance in In-line tube banks. The flow separation was generated by using the orifice at the upstream of tube ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be3ded053a3b2155f6d23ec26499143c
https://doi.org/10.1007/978-981-10-7542-1_54
https://doi.org/10.1007/978-981-10-7542-1_54
Autor:
Reiji Tomiku, Hiromitsu Hamakawa, Eiichi Nishida, Kenta Asakura, Toru Otsuru, Hiroki Matsuoka, Eru Kurihara, Taiki Yamai, Hidechito Hayashi
Publikováno v:
Open Journal of Fluid Dynamics. :1-9
The present paper focuses on the effect of air jets through a perforated thin plate on the characteristics of an acoustic absorption coefficient. We measured the flow rate, internal pressure, acoustic pressure, and transfer function by using an impro