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Junnosuke Okajima
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Journal Articles

Change in Cavitation Regime on NACA0015 Hydrofoil by Heating the Hydrofoil Surface

Ning Yang, Junnosuke Okajima, Yuka Iga
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2023, 145(7): 071201.
Paper No: FE-22-1512
https://doi.org/10.1115/1.4057004
Published Online: March 13, 2023
View Article titled, Change in Cavitation Regime on NACA0015 Hydrofoil by Heating the Hydrofoil Surface
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Topics: Cavitation, Cavities, Heating, Hydrofoil, Image processing, Temperature, Flow (Dynamics), Vapors
Journal Articles

Thermodynamic Suppression Effect of Cavitation Arising in a Hydrofoil in 140 °C Hot Water

Yuka Iga, Junnosuke Okajima, Yuki Yamagichi, Hirotoshi Sasaki, Yu Ito
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2023, 145(1): 011207.
Paper No: FE-22-1274
https://doi.org/10.1115/1.4055600
Published Online: October 17, 2022
View Article titled, Thermodynamic Suppression Effect of Cavitation Arising in a Hydrofoil in 140 °C Hot Water
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Topics: Cavitation, Cavities, Temperature, Water, Hydrofoil, Hot water
Journal Articles

Minimizing Tissue Surface Overheating Using Convective Cooling During Laser-Induced Thermal Therapy: A Numerical Study

Rupesh Singh, Koushik Das, Subhash C. Mishra, Junnosuke Okajima, Shigenao Maruyama
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. March 2016, 8(1): 011002.
Paper No: TSEA-14-1073
https://doi.org/10.1115/1.4030698
Published Online: November 11, 2015
View Article titled, Minimizing Tissue Surface Overheating Using Convective Cooling During Laser-Induced Thermal Therapy: A Numerical Study
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Topics: Biological tissues, Cooling, Lasers, Patient treatment, Radiative heat transfer, Temperature
Journal Articles

Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe

Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama
Journal: Journal of Nanotechnology in Engineering and Medicine
Publisher: ASME
Article Type: Research-Article
J. Nanotechnol. Eng. Med. November 2013, 4(4): 040906.
Paper No: NANO-14-1011
https://doi.org/10.1115/1.4027988
Published Online: July 24, 2014
View Article titled, Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe
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Topics: Cooling, Freezing, Heat transfer coefficients, Hydrogels, Refrigerants, Temperature, Temperature distribution, Computer simulation, Heat transfer, Heat flux
Proceedings Papers

Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe

Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama
Proc. ASME. MNHMT2013, ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T13A001, December 11–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: MNHMT2013-22119
https://doi.org/10.1115/MNHMT2013-22119
View Paper titled, Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe
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Topics: Bioheat transfer, Biological tissues, Computer simulation, Cooling, Freezing, High pressure (Physics), Phase transition temperature, Refrigerants, Surgery, Temperature
Proceedings Papers

Study of Supersonic Micro-Channel for Cooling Electronic Devices

Yuya Takahashi, Junnosuke Okajima, Yuka Iga, Atsuki Komiya, Wu-Shung Fu, Shigenao Maruyama
Proc. ASME. ICNMM2013, ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels, V001T05A003, June 16–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2013-73134
https://doi.org/10.1115/ICNMM2013-73134
View Paper titled, Study of Supersonic Micro-Channel for Cooling Electronic Devices
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Topics: Cooling, Microchannels, Nozzles, Heat transfer, Pressure, Shapes, Temperature, Gas flow, Geometry, Microscale devices
Proceedings Papers

An Investigation of Concentration Dependency of Mass Diffusion Coefficients in Multi-Component Diffusion

Atsuki Komiya, Juan F. Torres, Junnosuke Okajima, Shuichi Moriya, Shigenao Maruyama, Masud Behnia
Proc. ASME. IHTC14, 2010 14th International Heat Transfer Conference, Volume 2, 555-560, August 8–13, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IHTC14-22501
https://doi.org/10.1115/IHTC14-22501
View Paper titled, An Investigation of Concentration Dependency of Mass Diffusion Coefficients in Multi-Component Diffusion
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Topics: Diffusion (Physics), Errors, Transients (Dynamics), Gradient methods, Optimization, Visualization, Diffusion processes, Interferometers, Mass measurement, Measurement systems
Proceedings Papers

Cooling Characteristics of Ultrafine Cryoprobe Utilizing Convective Boiling Heat Transfer in Microchannel

Junnosuke Okajima, Shigenao Maruyama, Hiroki Takeda, Atsuki Komiya, Sangkwon Jeong
Proc. ASME. IHTC14, 2010 14th International Heat Transfer Conference, Volume 1, 297-306, August 8–13, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IHTC14-22550
https://doi.org/10.1115/IHTC14-22550
View Paper titled, Cooling Characteristics of Ultrafine Cryoprobe Utilizing Convective Boiling Heat Transfer in Microchannel
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Topics: Boiling, Cooling, Heat transfer, Microchannels, Refrigerants, Pressure drop, Temperature, Two-phase flow, Agar, Cooling systems