Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Chisachi Kato"'
Publikováno v:
Journal of Fluid Science and Technology, Vol 19, Iss 2, Pp JFST0021-JFST0021 (2024)
In recent years, to predict the performance and the aerodynamic sound of box fans with high accuracy, numerical analysis has been necessary for the transitional boundary layer on the blades. In this study, two types of box fans with a baseline fan an
Externí odkaz:
https://doaj.org/article/34bacc7d4f3d491ba95e14f3b9a2b5f3
Publikováno v:
Journal of Fluid Science and Technology, Vol 18, Iss 1, Pp JFST0020-JFST0020 (2023)
Aerodynamic noise in high frequency band related in the flows around A-pillar is easily propagated to the cabin of the automobile. Understanding of the characteristics of the aerodynamic noise is needed to reduce the cabin noise. Moreover, understand
Externí odkaz:
https://doaj.org/article/481d86ddb093442580609169e9a77ea0
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 885, Pp 19-00455-19-00455 (2020)
To clarify the mechanism for aerodynamic sound to be generated from a lifting surface placed in a flow with turbulence, wind-tunnel experiments and numerical simulations have been carried out for a flow around an airfoil subjected to the wake of a ci
Externí odkaz:
https://doaj.org/article/0e7e6d8e12984b64925549d6ac749c02
Autor:
Shinnosuke OBI, Koji FUKAGATA, Masaharu KAMEDA, Chisachi KATO, Yohei MORINISHI, Yuichi MURAI, Satoshi WATANABE, Masao WATANABE
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 2, Pp JFST0007-JFST0007 (2020)
Externí odkaz:
https://doaj.org/article/fe85c4fcde364617bd03c3ca341f4ae7
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 881, Pp 19-00336-19-00336 (2020)
Sound generated aerodynamically from a flow around an airfoil subjected to inflow turbulence is investigated experimentally as well as numerically to identify the dominant source of the sound. The test airfoil has NACA0012 wing section with a chord l
Externí odkaz:
https://doaj.org/article/4da034e87fcb45a1a6e616f0c0bf1eab
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 85, Iss 878, Pp 19-00294-19-00294 (2019)
The flow structures of a submerged vortex that appears in a model pump sump have been fully clarified by performing large eddy simulation (LES) of a model vortex in a simplified computational model. The computational model had a sufficiently fine gri
Externí odkaz:
https://doaj.org/article/2dd8f79187fa4d1d82d22b028b613a4e
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 85, Iss 875, Pp 19-00072-19-00072 (2019)
The origin and formation mechanism of a submerged vortex and an air-entraining vortex have been fully clarified by large-eddy simulation (LES) that used approximately 2 billion hexahedral elements with maximum resolution of 0.255 mm and was applied t
Externí odkaz:
https://doaj.org/article/270e7051c7cc4a44b4ee3c9c04116c38
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 857, Pp 17-00363-17-00363 (2018)
For designing a high-performance mixed-flow pump, control and suppression of performance-curve instability is crucial. For doing so, clarification of the essential flow physics that leads to the performance-curve instability is crucial in addition to
Externí odkaz:
https://doaj.org/article/bb74af8f80084acaa0499566e1f513ff
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 82, Iss 834, Pp 15-00533-15-00533 (2016)
A technique for high-accuracy predicting performance curve instability in pumps and clarification of the phenomenon in order to control the instability is required for designing high performance pumps. We analyzed internal flow of a test mixed-flow p
Externí odkaz:
https://doaj.org/article/aad4ad5873184c35be0d0131392a5ef9
Publikováno v:
Journal of Fluid Science and Technology, Vol 2, Iss 2, Pp 464-479 (2007)
To investigate the mechanism of noise generation by a train-car gap, which is one of a major source of noise in Shinkansen trains, experiments were carried out in a wind tunnel using a 1/5-scale model train. We measured velocity profiles of the bound
Externí odkaz:
https://doaj.org/article/60825474685348e196856cba9a1759a6