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Dive into the research topics where Yoshitaka Miyafuji is active.

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Featured researches published by Yoshitaka Miyafuji.


The Proceedings of the Thermal Engineering Conference | 2012

D224 The heat transfer enhancement mechanism on the forced convection by spraying a slight quantity of mist

Izuru Senaha; Masaki Higa; Yoshitaka Miyafuji; Sumio Kato

This paper describes the heat transfer enhancement mechanism on the forced convection by spraying a slight quantity of mist in a channel of a backward-facing step flow. The mist reduces temperature of a main flow by displacement of the latent heat accompanying evaporation. In this research, about the above-mentioned phenomenon was done by both of the experiment and the computer simulation. And, we compared those results and considered that about the relation of the behavior and evaporation process of the mist. Finally, about the mechanism of the heat transfer enhancement by spraying a slight quantity of mist in a recirculation region was discussed.


Heat Transfer Research | 2005

Heat transfer enhancement in duct with blunt body inserted close to its wall

Kenyu Oyakawa; Yasuaki Kourogi; Minoru Yaga; Yoshitaka Miyafuji


Transactions of the Japan Society of Mechanical Engineers. B | 2004

Heat Transfer Enhancement in Duct with Blunt Body Inserted Close to Its Wall

Kenyu Oyakawa; Yasuaki Kourogi; Minoru Yaga; Yoshitaka Miyafuji


The Proceedings of Mechanical Engineering Congress, Japan | 2012

S053072 Measurement of Time and Spatial Characteristics of Heat Transfer and Fluid Flow with Mist in the Region behind the Backward-Facing Step

Masaki Higa; Yoshitaka Miyafuji; Izuru Senaha; Sumio Kato; Takune Kawahira


The Proceedings of the Thermal Engineering Conference | 2011

B111 Heat Transfer Enhancement by Mixing a little amount of Mist in a Recirculation Region of a Backward-Facing Step : Effect of Insertion of a Rod

Yoshitaka Miyafuji; Izuru Senaha; Takune Kawahira; Sumio Kato; Munehiko Hiwada


The Proceedings of Mechanical Engineering Congress, Japan | 2011

S054103 Enhancement of Heat Transfer in Downstream Region of Backward-Facing Step Using a Small Amount of Mist

Takune Kawahira; Yoshitaka Miyafuji; Izuru Senaha; Sumio Kato


The Proceedings of Conference of Tokai Branch | 2011

870 Research on the control of impingement heat transfer : effect of mist size

Shogo Yamada; Munehiko Hiwada; Azusa Kanamori; Kenyuu Oyakawa; Izuru Senaha; Yoshitaka Miyafuji


The Proceedings of the Thermal Engineering Conference | 2005

A213 Enhancement of Heat Transfer at Downstream of a Backward-Facing Step by Small Quantity of Mist

Izuru Senaha; Kenyu Oykawa; Minoru Yaga; Yoshitaka Miyafuji; Munehiko Hiwada


The Proceedings of the Thermal Engineering Conference | 2003

Heat Transfer Enhancement at Reattachment Point by Shear Layer Contained Mist Flow

Yoshitaka Miyafuji; Izuru Senaha; Munehiko Hiwada; Kenyu Oyakawa


Proceedings of thermal engineering conference | 2001

C216 Time and spatial characteristics of flow and temperature on Backward-facing Step

Ryo Fujisawa; Yoshitaka Miyafuji; Shoithi Matuda; Minoru Yaga; Kenyu Oyakawa

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Izuru Senaha

University of the Ryukyus

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Kenyu Oyakawa

University of the Ryukyus

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Minoru Yaga

University of the Ryukyus

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Sumio Kato

University of the Ryukyus

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Kenyuu Oyakawa

University of the Ryukyus

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