Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Hirochika TANIGAWA"'
Publikováno v:
Journal of Thermal Science and Technology, Vol 19, Iss 1, Pp 23-00148-23-00148 (2024)
Both spatially-averaged kinetic energy K and influx-averaged Nusselt number Nuinflux are numerically investigated concerning the three-dimensional thermal convection in a cubic cavity heated from a bottom wall and chilled from its opposite top wall.
Externí odkaz:
https://doaj.org/article/52cb64b238e3487ba8552db3ffbc86b3
Autor:
Katsuya HIRATA, Yosuke KIDA, Toshihiro NAKAI, Kouhei MIYAHARA, Yusuke NAITO, Hirochika TANIGAWA, Masami NAKANO
Publikováno v:
Journal of Fluid Science and Technology, Vol 13, Iss 3, Pp JFST0021-JFST0021 (2018)
The present purpose is to reveal the mechanism of a flying pipe from an aerodynamic point of view. At first, we conduct field observations of a flying pipe using a pair of high-speed video cameras, together with three-dimensional motion analyses. In
Externí odkaz:
https://doaj.org/article/1f4856fae6054803b87a32350af1505b
Autor:
Katsuya HIRATA, Masaaki KAMIZONO, Koshi KATAGIRI, Masaki KUSUMI, Yasuyoshi TAKEDA, Toshio SHINOKI, Hirochika TANIGAWA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 859, Pp 17-00384-17-00384 (2018)
The authors develop a small and simple steam-reforming reactor in a home-use size for such various heavy-hydrocarbons fuels as n-octane, n-decane, n-tetradecane and n-hexadecane in addition to n-dodecane. Under the thermal condition controlled by ele
Externí odkaz:
https://doaj.org/article/2e691d8369e346778fd78916d1770211
Autor:
Katsuya HIRATA, Naoki YABUKI, Kazuki UMEMURA, Tatsuya INOUE, Hirohisa WAKISAKA, Hirochika TANIGAWA
Publikováno v:
Mechanical Engineering Journal, Vol 5, Iss 2, Pp 17-00294-17-00294 (2018)
In order to investigate a self-excited oscillatory phenomenon of a two-dimensional confined jet with a cylinder as a downstream target, the authors conduct two-dimensional numerical analyses based on vorticity ζ and stream function ψ using a finite
Externí odkaz:
https://doaj.org/article/55809c83f0ed4d13b9f3c34188021831
Autor:
Toshio SHINOKI, Yasutaka FUJIMOTO, Masaaki KAMIZONO, Tsuyoshi MAEDA, Koshi KATAGIRI, Masaki KUSUMI, Hirochika TANIGAWA, Jiro FUNAKI, Katsuya HIRATA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 857, Pp 16-00252-16-00252 (2018)
The authors develop a small and simple steam-reforming reactor in a home-use size for n-dodecane as a heavy-hydrocarbons fuel. Under the thermal condition controlled by electric heaters and a gas burner with a thermal diffuser, the authors measure th
Externí odkaz:
https://doaj.org/article/ee9b81c84ead4a349c3f1b239e026bb7
Publikováno v:
Mechanical Engineering Journal, Vol 4, Iss 6, Pp 16-00665-16-00665 (2017)
In automobile-exhaust systems, catalytic converters are the main components to produce substantial pressure drops, which induce engine-power loss and fuel-consumption rise. In addition to the need to reduce the pressure loss, the flow passing through
Externí odkaz:
https://doaj.org/article/2838d2bc688b426cb239e1d339d1eb23
Publikováno v:
Journal of Thermal Science and Technology, Vol 8, Iss 1, Pp 309-322 (2013)
In this study, the authors numerically investigate the frequency response on the three-dimensional thermal convection in a cubic cavity heated below in the gravitational field, concerning flow characteristics such as flow structure and a global quant
Externí odkaz:
https://doaj.org/article/27a0b7b0b1544f01b1857e2d7b1b3eb6
Publikováno v:
Journal of Fluid Science and Technology, Vol 8, Iss 1, Pp 106-119 (2013)
The authors numerically investigate the forced-oscillation-frequency responses on flow and thermal characteristics of the thermal convection in a cubic cavity heated from below in the gravitational field, concerning global quantities such as spatiall
Externí odkaz:
https://doaj.org/article/ef6bee8a98b54657980cec7995102ea0
Autor:
Katsuya HIRATA, Tatsuya INOUE, Yoko HANEDA, Noriko MIYASHITA, Hirochika TANIGAWA, Jiro FUNAKI
Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 4, Pp 534-547 (2011)
In the present study, we investigate a self-excited oscillatory phenomenon of a two-dimensional confined jet with a rectangular-cross-section cylinder as a downstream target. More specifically, in order to reveal the effects of a kinematic parameter
Externí odkaz:
https://doaj.org/article/147ce6d915f14146863aa7659fff7d18
Publikováno v:
Journal of Fluid Science and Technology, Vol 5, Iss 3, Pp 384-402 (2010)
Vertical sloshing is the liquid surface motion in a container forced to oscillate in the vertical direction. The present paper concerns the vertical sloshing in various equilateral-polygonal-section containers such as octagonal-, heptagonal-, hexagon
Externí odkaz:
https://doaj.org/article/1af8a900ea6b4f59b16815ba9cb717a0