Researcher Information
Assistant Professor OTSUKA, Hikaru
Faculty, Affiliation
Faculty of Frontier Engineering,Institute of Science and Engineering
College and School Educational Field
Division of Frontier Engineering, Graduate School of Natural Science and Technology
Laboratory
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
【Degree】
PhD
Career
Kanazawa University Institute of Science and Engineering Assistant Professor(2022/01-)
(2018/04-2022/01)
(2016/04-2018/03)
Year & Month of Birth
Academic Society
American Institute of Aeronautics and Astronautics(AIAA)
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES(JSASS)
Award
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES(JSASS)
○しろまるBest Paper of UAV III Session, 6th Asian-Australian Rotorcraft Forum & Heli Japan 2017(2017年11月09日)
○しろまるGood Presentation Award, 46th Meeting of JSASS(In Japanese)(2015年04月20日)
○しろまるGood Presentation Award for Student, Meeting of North Branch of JSASS(In Japanese)(2014年03月01日)
Specialities
Aerospace engineering、Fluid Dynamics
Speciality Keywords
Wind Tunnel,Multirotor UAV,UAV,Rotor,Aerospace Engineering,Aerodynamics
Research Themes
Rotor Aerodynamics of UAVs
Books
Papers
- 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 67 4 203-211 2024年07月04日
- Thrust variations in small rotors due to corner and vertex effects on the ground side Hikaru Otsuka,Shunei, Akaba, Taisei Hara, Hiroki Nagai, and Hiroshi Tokutake The Aeronautical Journal 129 1334 2025年01月27日
- Single-Use Aircraft Launch System with Small Helium Balloon for 1 kPa Flight Testing Hikaru Otsuka, Hiromi Ueno, Renta Oishi, Naoki Hayashi, Ryoma Nakayama, and Hiroshi Tokutake Journal of Robotics and Mechatronics 36 5 1167-1178 2024年10月20日
- Fountain Flow Visualization in Quadrotor Wake Decreasing Rotor Thrust in-Ground Effect Hikaru Otsuka, Masayoshi Kohno, Keiji Nagatani Journal of Aircraft 61 3 761-773 2024年05月01日
- 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
- 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
- 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
- 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
- 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年03月01日
Conference Presentations
- Side-by-Side Rotor Thrust Change During Horizontal Approach to Rectangle Step(conference:AIAA SCITECH 2025 Forum)(2025年01月08日)
- Development of 3D Flow Analysis Method for Multicopter Rotors by Combination of Blade Element Theory and Actuator Line Model(conference:AIAA SCITECH 2025 Forum)(2025年01月08日)
- Smoke-Visualized Wake of Quadrotor in Ground Effect(conference:Twenty-fourth International Symposium on Advanced Fluid Information (AFI2024))(2024年11月12日)
- Plan to study the Surface Flow of a Small Rotor Blade with a Vortex Generator(conference:Twenty-fourth International Symposium on Advanced Fluid Information (AFI2024))(2024年11月12日)
- Simulation of Fountain Flow Development in Quadrotor Wake with Symmetry Boundary Condition(conference:Twenty-third International Symposium on Advanced Fluid Information (AFI2023))(2023年11月06日)
- Preliminary Study on Quadrotor Wake in Ground Effect Using Symmetry Walls(conference: The 22nd International Symposium on Advanced Fluid Information )(2022年11月09日)
- 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)
- 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)
- Evaluation of Hovering Thrust Performance of Shrouded Rotors for Multi-rotor UAVs to Reduce Weight (conference:AIAA Atmospheric Flight Mechanics Conference)(2015年01月05日)
- Flow Visualization on a Shrouded Rotor in Cross Wind Using a Laser Light Sheet Technique (2015年04月16日)
- 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)
- 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)
- Basic understanding of airfoil characteristics at low reynolds numbers (conference:7th AHS Technical Meeting on VTOL Unmanned Aircraft Systems and Autonomy)(2017年01月01日)
- Reduction of pitching moment generation of a quadrotor UAV in gust with slant rotors(conference:AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting)(2017年01月08日)
- 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年05月10日)
- Flow visualization of wake of a quad-copter in ground effect(conference:6th Asian-Australian Rotorcraft Forum and Heli Japan 2017, Kanazawa, 2017)(2017年11月01日)
Others
- 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年11月10日
Arts and Fieldwork
Patent
Theme to the desired joint research
Grant-in-Aid for Scientific Research
○しろまる「低レイノルズ数10k-50kでホバー効率が高く低騒音なロータ翼型の開発」(2024-2026)
○しろまる「昆虫の飛行制御行動の強制と適応過程の観察による飛行フィロソフィー顕在化と理解」(2023-2027)
○しろまる「小型無人航空機の飛行時間の飛躍的向上を目指した小型ロータの開発と設計理論の再構築」(2016-2017)
Competitive research funding,Contribution
Collaborative research,Consignment study
Classes (Bachelors)
○しろまるIntroduction to Advanced Technologies A(2024)
○しろまるResearch Project(2023)
○しろまるResearch Project(2022)
Classes (Graduate Schools)
○しろまるMaster Thesis Report for Frontiers(2024)
○しろまるLaboratory Rotation I(2024)
○しろまるLaboratory RotationI(2024)