Search Results - "Yoichi OGATA"

Beam Duplicator Consisting of a Waveguide Coupler and Display on a Head Mounted Display by Ogata, Yoichi

“…We fabricated a SiO2 embedded-TiO2 slanted nanograting sample using reactive ion etching and electron beam lithography techniques and investigated their…”
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Effects of full transient Injection Rate and Initial Spray Trajectory Angle profiles on the CFD simulation of evaporating diesel sprays- comparison between singlehole and multi hole injectors by Safiullah, Chandra Ray, Samir, Nishida, Keiya, McDonell, Vincent, Ogata, Yoichi

“…This paper investigates experimental and computational diesel sprays of single hole and multi hole injectors under vaporizing conditions. Two single hole and…”
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Numerical study of the correlation between fish school arrangement and propulsive performance by Yoshida, Kosuke, Ogata, Yoichi, Hirai, Sota, Hosotani, Kazunori

“…We focus on the distances in flow direction and its vertical direction on three fish school arrangements, and correlate the fish school in uniform flow with…”
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Heat Transfer Characteristics of Turbulent Flow in Double-90°-Bend Pipes by Kato, Yuki, Fujimoto, Kenmei, Guo, Guanming, Kawaguchi, Mikimasa, Kamigaki, Masaya, Koutoku, Masanobu, Hongou, Hitoshi, Yanagida, Haruna, Ogata, Yoichi

“…This study evaluates the heat dissipation and Nusselt number for an S-shaped double-bend pipe, for which an experimental evaluation is lacking. In terms of the…”
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Unsteady Secondary Motion of Pulsatile Turbulent Flow through a Double 90°-Bend Duct by Oki, Junichi, Kuga, Yukika, Yamamoto, Ryo, Nakamura, Kazuhiro, Yokohata, Hideaki, Nishida, Keiya, Ogata, Yoichi

“…We investigate turbulent flow with highly pulsating axial velocity passing through a duct with both first and second bends. The time-dependent velocity fields…”
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Effects of injection pressure and impingement distance on flat-wall impinging spray flame and its heat flux under diesel engine-like condition by Mahmud, Rizal, Kurisu, Toru, Nishida, Keiya, Ogata, Yoichi, Kanzaki, Jun, Akgol, Onur

“…Heat loss is one of the main causes of energy losses in modern direct injection diesel engines. This heat loss of the engine occurs during combustion, mainly…”
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Effect of vortex fluctuation in a 90-degree curved pipe on the surface fluctuation of an ejected liquid jet by LIU, Erwei, KAWAGUCHI, Mikimasa, NAKAYAMA, Ryoutaro, IWASAKI, Masato, NISHIDA, Keiya, NAKASHIMA, Akira, OGATA, Yoichi

“…Improving the thermal efficiency of internal combustion engines requires a high compression ratio, a high thermal load, and high mechanical strength in the…”
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Experimental Study and Conjugate Heat Transfer Simulation of Pulsating Flow in Straight and 90° Curved Square Pipes by Guo, Guanming, Kamigaki, Masaya, Inoue, Yuuya, Nishida, Keiya, Hongou, Hitoshi, Koutoku, Masanobu, Yamamoto, Ryo, Yokohata, Hideaki, Sumi, Shinji, Ogata, Yoichi

“…The turbulent pulsating flow and heat transfer in straight and 90° curved square pipes are investigated in this study. Both experimental temperature field…”
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Evaluation of Vaporizing Diesel Spray with High-Speed Laser Absorption Scattering Technique for Measuring Vapor and Liquid Phase Concentration Distributions by Ray, Samir Chandra, Safiullah, Naito, Shinichiro, Andersson, Mats, Nishida, Keiya, Ogata, Yoichi

“…The Conventional Laser Absorption Scattering (C-LAS) technique is used to measure the mixture concentration and visualize the vapor phase. The former is…”
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Experimental Study and Conjugate Heat Transfer Simulation of Turbulent Flow in a 90° Curved Square Pipe by Guo, Guanming, Kamigaki, Masaya, Zhang, Qiwei, Inoue, Yuuya, Nishida, Keiya, Hongou, Hitoshi, Koutoku, Masanobu, Yamamoto, Ryo, Yokohata, Hieaki, Sumi, Shinji, Ogata, Yoichi

“…This paper discusses the turbulent flow and heat transfer from a uniform air flow with high temperature to the outside through a 90° curved square pipe. Both…”
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Effect of flow in the circular 90-degree curved nozzles on ejecting oil jet behavior by KAWAGUCHI, Mikimasa, NITTA, Goichi, MIMURA, Keita, NISHIDA, Keiya, KOUTOKU, Masanobu, YAMAMOTO, Ryo, NAKASHIMA, Akira, OGATA, Yoichi

“…In general, technical methods for improving the thermal efficiency of an engine increase the heat load on peripheral components. Recently, a piston cooling…”
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Effects of characteristic decomposed modes of the internal flow of a circular 90-degree bent nozzle on the behavior of the oil jet interface by KAWAGUCHI, Mikimasa, NAKAYAMA, Ryoutaro, MA, Lijuan, NISHIDA, Keiya, YOKOHATA, Hideaki, KOUTOKU, Masanobu, NISHIKAWA, Jun, NAKASHIMA, Akira, OGATA, Yoichi

“…Methods of decreasing the CO2 emissions of the internal combustion engine have been suggested. For example, an engine can be designed with a high compression…”
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Evaporating characteristics of diesel sprays under split-injection condition with a negative dwell time by Jin, Yu, Wu, Qing, Zhai, Chang, Kim, Jaeheun, Luo, Hong-liang, Ogata, Yoichi, Nishida, Keiya

“…This paper investigates the effects of the split-injection strategy with a negative dwell time using a multi-hole diesel injector under evaporating conditions…”
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Numerical investigation of small fish accelerating impulsively to terminal speed by Yoichi OGATA, Takayuki AZAMA, Yuji MORIYAMA

“…The present paper discusses acceleration in the swimming of a small three-dimensional fish with two motions, carangiform and anguilliform. Flow fields…”
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Crystalline Pd nanowires on the MgO(210) faceted template by Ogata, Yoichi, Koshida, Kosuke, Mizutani, Goro

“…Shadow deposition fabricated Pd nanowires with well‐oriented crystalline axes on MgO(210) faceted templates, and high‐resolution transmission electron…”
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Experimental study on oil-air multiphase flow in a right circular cylindrical channel during reciprocating motion by Akira NAKASHIMA, Goichi NITTA, Keiya NISHIDA, Hitoshi HONGOU, Hideaki YOKOHATA, Yoichi OGATA

“…Much attention has recently been given to high-efficiency cooling of pistons in internal combustion engines by cooling channels because of improved thermal…”
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An experimental investigation of the behavior of oil jets injected by a 90° curved circular nozzle by Akira NAKASHIMA, Goichi NITTA, Keiya NISHIDA, Hitoshi HONGOU, Hideaki YOKOHATA, Yoichi OGATA

“…The high efficiency cooling of pistons in internal combustion engines by oil jets has recently received widespread attention. To date, curved circular oil jet…”
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Stereo and time-resolved PIV for measuring pulsatile exhaust flow from a motorized engine by Junichi OKI, Yukika KUGA, Yoichi OGATA, Keiya NISHIDA, Ryo YAMAMOTO, Kazuhiro NAKAMURA, Haruna YANAGIDA, Hideaki YOKOHATA

“…The present experimental study deals with a pulsatile turbulent flow simulating the exhaust flow of an automotive engine. In the experiments, a four-cylinder…”
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Experimental and numerical investigation of a pulsatile flow field in an S-shaped exhaust pipe of an automotive engine by Junichi OKI, Masafumi IKEGUCHI, Yoichi OGATA, Keiya NISHIDA, Ryo YAMAMOTO, Kazuhiro NAKAMURA, Haruna YANAGIDA, Hideaki YOKOHATA

“…A pulsatile turbulent flow within an S-shaped double bend pipe is experimentally and numerically studied to characterize the flow field in conditions…”
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Effect of Spray/Wall Interaction on Diesel Combustion and Soot Formation in Two-Dimensional Piston Cavity by Li, Kuichun, Ido, Masaki, Ogata, Yoichi, Nishida, Keiya, Shi, Baolu, Shimo, Daisuke

“…The effects of spray/wall interaction on diesel combustion and soot formation in a two-dimensional piston cavity were studied with a high speed color video…”
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