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Researcher Information

last modified:2024/03/29

Assistant Professor OTSUKA, Hikaru

Laboratory Website

Faculty, Affiliation

Faculty of Frontier Engineering,Institute of Science and Engineering
Assistant Professor

College and School Educational Field

Division of Frontier Engineering, Graduate School of Natural Science and Technology


Aerospace system laboratory https://aero.w3.kanazawa-u.ac.jp/cgi-bin/wiki.cgi TEL:076-234-4713

Academic Background

【Academic background(Doctoral/Master's Degree)】
Tohoku University Doctor Department of Engineering Aerospace Engineering 201803 Completed
Tohoku University Master Enginnering Aerospace Enginnering 201503 Completed
【Academic background(Bachelor's Degree)】
Tohoku University Mechanics and Aerospace Engineering 201303


Kanazawa University Institute of Science and Engineering Assistant Professor(2022/01-)

Year & Month of Birth

Academic Society

American Institute of Aeronautics and Astronautics(AIAA)


○Best Paper of UAV III Session, 6th Asian-Australian Rotorcraft Forum & Heli Japan 2017(2017/11/09)
○Good Presentation Award, 46th Meeting of JSASS(In Japanese)(2015/04/20)
○Good Presentation Award for Student, Meeting of North Branch of JSASS(In Japanese)(2014/03/01)


Aerospace engineering、Fluid Dynamics、Field Robotics, Unmanned Aerial Vehicle

Speciality Keywords

Wind Tunnel,Multirotor UAV,UAV,Rotor,Aerospace Engineering,Aerodynamics

Research Themes

Rotor Aerodynamics of UAVs

Rotor Aerodynamics of UAVs



  •  Fountain Flow Visualization in Quadrotor Wake Decreasing Rotor Thrust in-Ground Effect Hikaru Otsuka, Masayoshi Kohno, Keiji Nagatani Journal of Aircraft under printing 2024/01/01
  •  Basic Understanding of Airfoil Characteristics at Low Reynolds Numbers (10(4)-10(5)) Winslow Justin,Otsuka Hikaru,Govindarajan Bharath,Chopra Inderjit JOURNAL OF AIRCRAFT 55 3 1050 2018/05
  •  Reduction of the head-up pitching moment of small quad-rotor unmanned aerial vehicles in uniform flow Hikaru Otsuka,Daisuke Sasaki,Keiji Nagatani International Journal of Micro Air Vehicles 10 1 85 2018/03/01
  •  Pitching moment caused by rotor flow interference on a small quad-rotor unmanned aerial vehicle in a uniform flow Hikaru Otsuka,Keiji Nagatani Transactions of the Japan Society for Aeronautical and Space Sciences 61 2 87 2018
  •  Thrust Loss Saving Design of Overlapping Rotor Arrangement on Small Multirotor Unmanned Aerial Vehicles Hikaru Otsuka,Keiji Nagatani 2016 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA) 2016-June ICRA 3242 2016 

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  •  Volcanic Ash Observation in Active Volcano Areas using Teleoperated Mobile Robots - Introduction to Our Robotic-Volcano-Observation Project and Field Experiments Keiji Nagatani,Ken Akiyama,Genki Yamauchi,Hikaru Otsuka,Takuma Nakamura,Seiga Kiribayashi,Kazuya Yoshida,Yasushi Hada,Shini'chi Yuta,Kenichi Fujino,Tomoyuki Izu,Randy Mackay 2013 IEEE INTERNATIONAL SYMPOSIUM ON SAFETY, SECURITY, AND RESCUE ROBOTICS (SSRR) 1 2013 
  •  In-flight Rotor Blade Tip Damage Detection of Small Multirotor using Ultrasonic Sensors Hikaru Otsuka, Akihiro Kawasaki, Hiroshi Tokutake Transactions of the Japan Society for Aeronautical and Space Sciences Under printing 2024/01/01

Conference Presentations

  • Flow visualization of wake of a quad-copter in ground effect(conference:6th Asian-Australian Rotorcraft Forum and Heli Japan 2017, Kanazawa, 2017)(2017/11/01)
  • Investigation on Relationship between Rotors Axis Length and Ground Effect on a Small Quadrotor UAV Performance (conference:JSME annual Conference on Robotics and Mechatronics (Robomec))(2017/05/10)
  • Reduction of pitching moment generation of a quadrotor UAV in gust with slant rotors(conference:AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting)(2017/01/08)
  • Basic understanding of airfoil characteristics at low reynolds numbers (conference:7th AHS Technical Meeting on VTOL Unmanned Aircraft Systems and Autonomy)(2017/01/01)
  • Effect of Reynolds numbers of 10,000 to 100,000 on rotor blades of small unmanned aerial vehicles (conference:34th AIAA Applied Aerodynamics Conference)(2016/06)

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  • Flow visualization of separation on a shrouded rotor inlet in a crosswind (conference:APISAT 2015 - 7th Asia-Pacific International Symposium on Aerospace Technology)(2015/10)
  • Flow Visualization on a Shrouded Rotor in Cross Wind Using a Laser Light Sheet Technique (2015/04/16)
  • Evaluation of Hovering Thrust Performance of Shrouded Rotors for Multi-rotor UAVs to Reduce Weight (conference:AIAA Atmospheric Flight Mechanics Conference)(2015/01/05)
  • Evaluation of Rotary wing Thrust of Small UAVs in High Altitude Flight Conditions(conference:The 1st International Conference on Computational Engineering and Science for Safety and Environmental Problems)(2014/04)
  • Development of a Multi-Rotor UAV to transport a Small Rover in a Mountainous Area(conference:SME annual Conference on Robotics and Mechatronics (Robomec))(2013/05)
  • Simulation of Fountain Flow Development in Quadrotor Wake with Symmetry Boundary Condition(conference:Twenty-third International Symposium on Advanced Fluid Information (AFI2023))(2023/11/06)
  • Preliminary Study on Quadrotor Wake in Ground Effect Using Symmetry Walls(conference: The 22nd International Symposium on Advanced Fluid Information )(2022/11/09)


  •  Winter operational test of unmanned observation devices in Mt. Zao 谷島 諒丞,山内 元貴,大丸 拓郎,大塚 光,久利 美和 東北地域災害科学研究 = Tohoku journal of natural disaster science 53 113 2017/03
  •  Rotor-to-rotor Aerodynamic Interference of Multirotor Aerial Vehicles in Flight Hikaru, Otsuka., Hiroshi, Tokutake. Journal of the Japan Society of Applied Electromagnetics and Mechanics 30 3 287-292 2022/11/10

Arts and Fieldwork


Theme to the desired joint research

Grant-in-Aid for Scientific Research


Competitive research funding,Contribution

Collaborative research,Consignment study

Classes (Bachelors)

○Research Project(2023)
○Research Project(2022)

Classes (Graduate Schools)

○Master Thesis Report for Frontiers(2023)
○Master Thesis Report for Frontiers(2022)

International Project

International Students

Lecture themes

Others (Social Activities)

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