Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Koichi Tsujimoto"'
Autor:
Toshitake ANDO, Toshihiko SHAKOUCHI, Atsushi HANAI, Nobuyuki HAYASHI, Yohei FUKUTA, Koichi TSUJIMOTO, Mamoru TAKAHASHI
Publikováno v:
Journal of Fluid Science and Technology, Vol 18, Iss 1, Pp JFST0010-JFST0010 (2023)
90-degree elbow pipe/duct is one of the piping element which is used frequently in industrial apparatus. The separated flow which occurs at inner corner of elbow part and the secondary flow which occurs at the elbow and its downstream cause significa
Externí odkaz:
https://doaj.org/article/9458607adecc47e3b86847539ea9d2cd
Autor:
Tsubasa TANOUE, Koichi TSUJIMOTO
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 899, Pp 21-00051-21-00051 (2021)
Numerical simulation using DNS (direct numerical simulation) were performed for multiple pulsating jets consisting of two jets with different phases of pulsation. The calculations were performed for multiple cases where the jets with Re = 1500 were a
Externí odkaz:
https://doaj.org/article/646baef7e9594f5192e2559e766e4e41
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 2, Pp JFST0010-JFST0010 (2020)
A single impinging jet exhibits high heat transfer performance around an impingement point on a wall. However, the heat transfer performance deteriorates as it moves away from the impingement point. Consequently, multiple impinging jets are commonly
Externí odkaz:
https://doaj.org/article/1712297c7a564687b9043489b73e5c8d
Publikováno v:
Journal of Fluid Science and Technology, Vol 14, Iss 2, Pp JFST0009-JFST0009 (2019)
The flow characteristics of sub- and supersonic under-expanded jets issued from circular nozzles have been studied well; however, this does not apply to sub- and supersonic jets from an orifice nozzle. In this study, the flow characteristics of sub-
Externí odkaz:
https://doaj.org/article/2d97fd0136934dcc83dda30f9b3e8fae
Publikováno v:
Energies, Vol 13, Iss 24, p 6590 (2020)
Conventional circular double or triple tube type heat exchanger, DHE or THE, is one of the compact heat exchangers; a large number of studies have been performed to improve their heat transfer performance. The authors demonstrated that a petal-shaped
Externí odkaz:
https://doaj.org/article/f3317a8a2c7b4a92a4af7b80b112b5f5
Publikováno v:
Mechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00138-16-00138 (2016)
Heat exchangers are widely used for heating, cooling, evaporation, and condensation. There are many types of heat exchangers, shell and tube, fin tube, and double tube heat exchangers. Double tube heat exchangers show high performance, and several mo
Externí odkaz:
https://doaj.org/article/dfd659c6a9c94e7b812b54743256b620
Publikováno v:
Journal of Fluid Science and Technology, Vol 7, Iss 1, Pp 129-139 (2012)
In the piping system of power plants, pipe wall thinning caused by flow-accelerated corrosion (FAC), liquid droplet impingement (LDI) erosion, and cavitation Erosion (C/E), is a very serious problem because it leads to serious damage and eventual des
Externí odkaz:
https://doaj.org/article/80c31122f02647f38f710e6c0f599cf7
Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 4, Pp 401-411 (2011)
In order to develop a new mixing procedure, we conduct DNS (direct numerical simulation) of vector controlled free jets. The inflow velocity of jet is periodically oscillated perpendicular to the jet axis. To realize the high accurate computation, th
Externí odkaz:
https://doaj.org/article/9fd2a251398b403988f48e502073ef22
Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 4, Pp 453-464 (2011)
The centerline velocity of an orifice jet increases in the downstream direction from the nozzle exit and reaches a maximum of 1.2uce (where uce is the nozzle exit maximum velocity) at x/do≈2 (where do is the nozzle exit diameter) due to the vena co
Externí odkaz:
https://doaj.org/article/099955cd37a34a05b6d950b09bb4152f
Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 4, Pp 614-624 (2011)
Flows in the T-junction of a counter-flow pipe are run counter to each other and they usually flow out vertically together. A flow separated from the junction corner forms separated vortex regions and they reduce the effective cross-sectional areas o
Externí odkaz:
https://doaj.org/article/3ccaceb321cc4537a5fcdc170cc1d9e9