Institute of Fluid Science, Tohoku University Aerospace Fluid Engineering Laboratory
Welcome to Yakeno Lab.!
Welcome to Yakeno Lab.!
ABOUT US
We are working on experimental fluid dynamics, computational fluid dynamics, and their integration for the innovation, safety, and creation of aerospace systems.
- Innovative design and manufacturing assisted by "Computational Fluid Dynamics", “Multi-Objective Design Exploration” and “Uncertainty Quantification”
- Innovative engineering design driven by “Data Assimilation”
- Innovative aerospace plane experimented by “Magnetic Suspension and Balance System” and “Ballistic Range”
TOPICS
2025-4-16 The following paper mentioned below was recognized as one of the
top 10% of most viewed papers in 2023.
Clear Air Turbulence Resolved by Numerical Weather Prediction Model
Validated by Onboard and Virtual Flight Data
R. Yoshimura, J. Ito, P. A. Schittenhelm, K. Suzuki, A. Yakeno,
S. Obayashi
Geophysical Research Letters, Vol. 50, Issue 12, 2023
2025-4- 1 The laboratory has moved to a new structure.
2024-12-26 Highlight has been uploaded.
2024-11-25 JST CREST Predictive Mathematics Foundation, the first seminar of
"Nonlinear, Dissipative, and Random Dynamics of Deterministic
Governing Equations" was held jointly with the Fluid Dynamics Seminar
of the Fluid Physics Group, Department of Physics, Kyoto University.
2024-10-01 Assistant Professor Aiko Yakeno has been promoted to Associate
Professor.
2024-09-17 Assistant Professor Aiko Yakeno's research proposal has been
accepted by JST CREST Predictive Mathematics Foundation.
For project details, please click here.
2024-04-26 The following paper has been accepted.
Modal Analysis of High-Speed Subsonic Jet Noise: Visualization of
an Internal Feedback Loop
Shota Morita, Aiko Yakeno, Christophe Bogey, Shigeru Obayashi
Journal of Flow and Energy, accepted 2024
2024-04-09 The following paper has been published.
Data assimilation for combustion ignition delay time simulation
using schlieren image velocimetry
A. Yakeno, R. Inamura, N. Watanabe, R. Yoshimura, S. Obayashi,
N. Kurimoto, S. Skeen
Flow Measurement and Instrumentation, Volume 97, July 2024, 102596
2024-03-26 Mr. Yuji Mori (M2 student, Obayashi Lab) received the Tohoku
University Mechanical Engineering Department Chairman's Award.
2024-03-19 Assistant Professor Aiko Yakeno received the Tohoku University
Outstanding Female Researcher Award, the Murasaki Sendai-Hagi
Award.
Achievement title: “Study and control of flow dynamics for improving
the performance of high-speed transportation equipment”
2024-03-01 An interview article with Assistant Professor Aiko Yakeno was
published in Tohoku University Industry-Academia Collaboration
Organization Mail Magazine Vol. 36.
2024-02-29 Three papers from her Obayashi-Yakeno research group presented
at the 2024 AIAA SciTech Forum and Exposition were selected for
the American Institute of Aeronautics and Astronautics (AIAA)
Showcase.
2024-01-05 Highlight has been uploaded.
2023-11-17 Ms. Akari Akashi received Best Student Presentation Award at The
61st Aircraft Symposium of The Japan Society for Aeronautical and
Space Sciences.
Title:
Bayesian Optimization of Low Boom Supersonic Passenger
Plane Wing Fuselage Shape Considering Off-Track Noise
2023-10-06 The following paper has been published.
Drag reduction effect of distributed roughness on the transitional flow
state using direct numerical simulation
S. Hamada, A. Yakeno and S. Obayashi
International Journal of Heat and Fluid Flow, published
2023-07-01 The research results by Dr. Ryoichi Yoshimura and others were
published in the Kahoku Shimpo.
Kahoku Shimpo page
Youtube(introducing the research summary)
2023-06-28 The research results by Dr. Ryoichi Yoshimura and others were
released as a press release by Tohoku University and the Institute
of Fluid Science.
Tohoku University Press releases
Institute of Fluid Science Press Releases
2023-06-08 The following paper was accepted:
Clear Air Turbulence Resolved by Numerical Weather Prediction
Model Validated by Onboard and Virtual Flight Data
R. Yoshimura, J. Ito, P. A. Schittenhelm, K. Suzuki, A. Yakeno, S. Obayashi
Geophysical Research Letters, Vol. 50, Issue 12, 2023
2023-04-07 Assistant Professor Aiko Yakeno received the
"The MEXT Young Scientist Award" by Ministry of Education, Culture,
Sports, Science and Technology.
Title: "Near-wall flow study for drag reduction of high-speed
transportation equipment"
2023-03-22 Assistant Professor Aiko Yakeno gave an invited talk at the 2023
Australasian Fluid Mechanics Seminar Series (AFMSS 2023)
(link Title: "Near-wall flow study for drag reduction of
high-speed transportation equipment"
Youtube (https://www.youtube.com/watch?v=04IQPWe-6Ro)
2023-01-27 Assistant Professor Aiko Yakeno has been selected as a new project
leader for the Japan Science and Technology Agency (JST) FOREST
program.
Project title: "Next-generation transportation innovation by
super-layered fluid science on object surfaces "
2022-12-28 Highlight has been uploaded.
2022-11-10 Mr. Patrick Schittenhelm (University of Stuttgart, Germany)received
Best Presentation Award for Student Session of The 19th
International Conference on Flow Dynamics (ICFD2022)
2022-04-15 Mr. Hajime Kosada (Obayashi Lab., Master 2) received
Good Presentation Award for Student at The Japan Society
for Aeronautical and Space Sciences Northern Branch 2022
and The 3rd Symposium on Reusable Space Transportation Systems.
(Japanese)
2022-04-15 Hiroyuki Okuizumi, Technical Specialist in Aerospace Fluid Engineering
Laboratory received the "Outstanding Support for Research Award"
at the 2022 Commendation for Science and Technology by the Minister
of Education, Culture, Sports, Science and Technology.
Title: Contribution to the Advancement of Wind Tunnel Experiments
Using Magnetic Suspension and Balance System and the Shared Use
of Facilities (Japanese)
2022-03-30 Assistant Professor Aiko Yakeno received the ‘Fluids Engineering
Frontier Certificate of Merit’ (Frontier Award)
from Fluids Engineering Division of the Japan Society of
Mechanical Engineering, 2022 (Japanese)
2022-03-28 Mr. Yuji Mori (4th year BA student, Obayashi laboratory) received
the Tohoku University President's Award.
2022-03-07 Assistant Professor Aiko Yakeno received the Award for Distinguished
Young Researcher in Fluid Mechanics (Ryumon-sho Award) from the
Japan Society of Fluid Mechanics, 2021(Japanese)
2022-02-02 The following paper has been accepted.
Large Eddy and Flight Simulations
of a Clear Air Turbulence Event Over Tokyo on 16 December 2014,
R. Yoshimura, K. Suzuki, I. Junshi, R. Kikuchi, A. Yakeno, S. Obayashi
Journal of Applied Meteorology and Climatology (JAMC), accepted
2021-11-22 Professor Shigeru Obayashi received the Japan Society of
Mechanical Engineers Fluid Engineering Division Award for 2021.
(Japanese)
2021-09-15 Assistant Professor Aiko Yakeno's research results have been released
to the press.
Propagation of stationary and traveling waves in a leading-edge
boundary layer of a swept wing(Japanese)
2021-09-08 The following paper has been accepted.
Propagation of stationary and traveling waves in a leading-edge
boundary layer of a swept wing, Aiko Yakeno, Shigeru Obayashi
Physics of Fluids, Volume 33, Issue 9, 21 September 2021
2021-09-01 "What's on our laboratory" Page has been renewed.
2021-05-27 The following paper has been accepted.
Drag reduction and transient growth of a streak in a spanwise
wall-oscillatory turbulent channel flow, Aiko Yakeno,
Physics of Fluids, Volume 33, Issue 61, June 2021
2021-05-20 The following paper has been selected for Editor's Suggestion.
Flow characteristics around extremely low fineness-ratio
circular cylinders, Masahide Kuwata, Yoshiaki Abe,
Sho Yokota, Taku Nonomura, Hideo Sawada, Aiko Yakeno,
Keisuke Asai, Shigeru Obayashi,
Physical Review Fluids, Volume 6, Issue 5, May 2021
2021-02-23 The following paper has been accepted.
Flow characteristics around extremely low fineness-ratio
circular cylinders, Masahide Kuwata, Yoshiaki Abe,
Sho Yokota, Taku Nonomura, Hideo Sawada, Aiko Yakeno,
Keisuke Asai, Shigeru Obayashi,
Physical Review Fluids, Volume 6, Issue 5, May 2021
2020-03-02 Mr.Yoshikazu Yoshimura has been appointed as a JSPS Research Fellow
(DC1).
2020-01-06 Highlight has been uploaded.
2019-12-23 Mr. Hide Iwabuchi gave an oral presentation at 33rd Fluid Dynamics
Symposium, and was selected as "Remarkable Study in CFD33" of
"Journal of the Japan Society of Fluid Mechanics".
2019-11-07 Mr.Potsawat Boonjaipetch and Mr.Hiroki Tameike won the “Best
PresentationAward” at Sixteenth International Conference on Flow
Dynamics(ICFD), Sendai, Miyagi 2019.
2019-10-25 Ms.Kasumi Sasaki won the Fellow Award at JSME Symposium : Sports
engineering and Human Dynamics 2019.
2019-10-17 Mr. Masahide Kuwata gave an oral presentation at the 57th Airplane
Symposium and received the “Student Excellence Award”.
2019-10-01 Shimoyama Lab has been independent as the “Fluids Engineering with
Data Science Laboratory.” The website has moved here
2019-08-26 The following paper has been accepted.
Application of observability Gramian to targeted observation
in WRF data assimilation, R. Yoshimura, A. Yakeno,
S. Obayashi and T. Misaka, Tellus A: Dynamic Meteorology &
Oceanography.
2019-08-28 The following paper has been accepted.
Three-Dimensional Global Stability on Stuart Vortex of
Free Shear Layer, Yakeno A. and Hirota M., Progress in Turbulence
VIII.iTi 2018. Springer Proceedings in Physics, vol 226. Springer
2019-04-23 The lecture “Mathematics I” is held in Quarter 1.
2019-03-25 At the International Conference on Computational & Experimental
Engineering and Science (ICCES) ，Prof. Shigeru Obayashi and
Asst. Prof. Aiko Yashino gave an invited talk.
2019-03-20 Mr. Ryota Fukuchi gave an oral presentation and won the "Good
Presentation Award for Student"at the Japan Aerospace Society
Northern Branch 2019 Lecture and the 20th Reusable Space
Propulsion Symposium.
2018-12-06 The lecture “Fluid Design Informatics” is held in Quarter 4.
2018-07-04 This websight has been renewed.
2018-05-23 Asst. Prof. Aiko Yakeno gave an invited talk at the Fusion Research
Seminar at TFC, Tohoku University.
2018-03-12 Asst. Prof. Aiko Yakeno gave an invited talk at Imperial College
London, Department of Aeronautics.
2018-01-04 Highlight has been uploaded.
2018-01-01 A new year postcard with a picture of 'RYUTAN' has been arrived.
NewYearRYUTAN
2017-10-22 Asst. Prof. Aiko Yashino gave an invited talk at the 2nd meeting of the
Design Information Driven Study Group.
2017-10-01 Dr. Aiko Yakeno has been appointed as an assistant professor.
2017-04-20 The article has been published in Research Feature Highlights of
Tohoku University.
"Aiming high: Shigeru Obayashi is innovating human flight"
top 10% of most viewed papers in 2023.
Clear Air Turbulence Resolved by Numerical Weather Prediction Model
Validated by Onboard and Virtual Flight Data
R. Yoshimura, J. Ito, P. A. Schittenhelm, K. Suzuki, A. Yakeno,
S. Obayashi
Geophysical Research Letters, Vol. 50, Issue 12, 2023
2025-4- 1 The laboratory has moved to a new structure.
2024-12-26 Highlight has been uploaded.
2024-11-25 JST CREST Predictive Mathematics Foundation, the first seminar of
"Nonlinear, Dissipative, and Random Dynamics of Deterministic
Governing Equations" was held jointly with the Fluid Dynamics Seminar
of the Fluid Physics Group, Department of Physics, Kyoto University.
2024-10-01 Assistant Professor Aiko Yakeno has been promoted to Associate
Professor.
2024-09-17 Assistant Professor Aiko Yakeno's research proposal has been
accepted by JST CREST Predictive Mathematics Foundation.
For project details, please click here.
2024-04-26 The following paper has been accepted.
Modal Analysis of High-Speed Subsonic Jet Noise: Visualization of
an Internal Feedback Loop
Shota Morita, Aiko Yakeno, Christophe Bogey, Shigeru Obayashi
Journal of Flow and Energy, accepted 2024
2024-04-09 The following paper has been published.
Data assimilation for combustion ignition delay time simulation
using schlieren image velocimetry
A. Yakeno, R. Inamura, N. Watanabe, R. Yoshimura, S. Obayashi,
N. Kurimoto, S. Skeen
Flow Measurement and Instrumentation, Volume 97, July 2024, 102596
2024-03-26 Mr. Yuji Mori (M2 student, Obayashi Lab) received the Tohoku
University Mechanical Engineering Department Chairman's Award.
2024-03-19 Assistant Professor Aiko Yakeno received the Tohoku University
Outstanding Female Researcher Award, the Murasaki Sendai-Hagi
Award.
Achievement title: “Study and control of flow dynamics for improving
the performance of high-speed transportation equipment”
2024-03-01 An interview article with Assistant Professor Aiko Yakeno was
published in Tohoku University Industry-Academia Collaboration
Organization Mail Magazine Vol. 36.
2024-02-29 Three papers from her Obayashi-Yakeno research group presented
at the 2024 AIAA SciTech Forum and Exposition were selected for
the American Institute of Aeronautics and Astronautics (AIAA)
Showcase.
2024-01-05 Highlight has been uploaded.
2023-11-17 Ms. Akari Akashi received Best Student Presentation Award at The
61st Aircraft Symposium of The Japan Society for Aeronautical and
Space Sciences.
Title:
Bayesian Optimization of Low Boom Supersonic Passenger
Plane Wing Fuselage Shape Considering Off-Track Noise
2023-10-06 The following paper has been published.
Drag reduction effect of distributed roughness on the transitional flow
state using direct numerical simulation
S. Hamada, A. Yakeno and S. Obayashi
International Journal of Heat and Fluid Flow, published
2023-07-01 The research results by Dr. Ryoichi Yoshimura and others were
published in the Kahoku Shimpo.
Kahoku Shimpo page
Youtube(introducing the research summary)
2023-06-28 The research results by Dr. Ryoichi Yoshimura and others were
released as a press release by Tohoku University and the Institute
of Fluid Science.
Tohoku University Press releases
Institute of Fluid Science Press Releases
2023-06-08 The following paper was accepted:
Clear Air Turbulence Resolved by Numerical Weather Prediction
Model Validated by Onboard and Virtual Flight Data
R. Yoshimura, J. Ito, P. A. Schittenhelm, K. Suzuki, A. Yakeno, S. Obayashi
Geophysical Research Letters, Vol. 50, Issue 12, 2023
2023-04-07 Assistant Professor Aiko Yakeno received the
"The MEXT Young Scientist Award" by Ministry of Education, Culture,
Sports, Science and Technology.
Title: "Near-wall flow study for drag reduction of high-speed
transportation equipment"
2023-03-22 Assistant Professor Aiko Yakeno gave an invited talk at the 2023
Australasian Fluid Mechanics Seminar Series (AFMSS 2023)
(link Title: "Near-wall flow study for drag reduction of
high-speed transportation equipment"
Youtube (https://www.youtube.com/watch?v=04IQPWe-6Ro)
2023-01-27 Assistant Professor Aiko Yakeno has been selected as a new project
leader for the Japan Science and Technology Agency (JST) FOREST
program.
Project title: "Next-generation transportation innovation by
super-layered fluid science on object surfaces "
2022-12-28 Highlight has been uploaded.
2022-11-10 Mr. Patrick Schittenhelm (University of Stuttgart, Germany)received
Best Presentation Award for Student Session of The 19th
International Conference on Flow Dynamics (ICFD2022)
2022-04-15 Mr. Hajime Kosada (Obayashi Lab., Master 2) received
Good Presentation Award for Student at The Japan Society
for Aeronautical and Space Sciences Northern Branch 2022
and The 3rd Symposium on Reusable Space Transportation Systems.
(Japanese)
2022-04-15 Hiroyuki Okuizumi, Technical Specialist in Aerospace Fluid Engineering
Laboratory received the "Outstanding Support for Research Award"
at the 2022 Commendation for Science and Technology by the Minister
of Education, Culture, Sports, Science and Technology.
Title: Contribution to the Advancement of Wind Tunnel Experiments
Using Magnetic Suspension and Balance System and the Shared Use
of Facilities (Japanese)
2022-03-30 Assistant Professor Aiko Yakeno received the ‘Fluids Engineering
Frontier Certificate of Merit’ (Frontier Award)
from Fluids Engineering Division of the Japan Society of
Mechanical Engineering, 2022 (Japanese)
2022-03-28 Mr. Yuji Mori (4th year BA student, Obayashi laboratory) received
the Tohoku University President's Award.
2022-03-07 Assistant Professor Aiko Yakeno received the Award for Distinguished
Young Researcher in Fluid Mechanics (Ryumon-sho Award) from the
Japan Society of Fluid Mechanics, 2021(Japanese)
2022-02-02 The following paper has been accepted.
Large Eddy and Flight Simulations
of a Clear Air Turbulence Event Over Tokyo on 16 December 2014,
R. Yoshimura, K. Suzuki, I. Junshi, R. Kikuchi, A. Yakeno, S. Obayashi
Journal of Applied Meteorology and Climatology (JAMC), accepted
2021-11-22 Professor Shigeru Obayashi received the Japan Society of
Mechanical Engineers Fluid Engineering Division Award for 2021.
(Japanese)
2021-09-15 Assistant Professor Aiko Yakeno's research results have been released
to the press.
Propagation of stationary and traveling waves in a leading-edge
boundary layer of a swept wing(Japanese)
2021-09-08 The following paper has been accepted.
Propagation of stationary and traveling waves in a leading-edge
boundary layer of a swept wing, Aiko Yakeno, Shigeru Obayashi
Physics of Fluids, Volume 33, Issue 9, 21 September 2021
2021-09-01 "What's on our laboratory" Page has been renewed.
2021-05-27 The following paper has been accepted.
Drag reduction and transient growth of a streak in a spanwise
wall-oscillatory turbulent channel flow, Aiko Yakeno,
Physics of Fluids, Volume 33, Issue 61, June 2021
2021-05-20 The following paper has been selected for Editor's Suggestion.
Flow characteristics around extremely low fineness-ratio
circular cylinders, Masahide Kuwata, Yoshiaki Abe,
Sho Yokota, Taku Nonomura, Hideo Sawada, Aiko Yakeno,
Keisuke Asai, Shigeru Obayashi,
Physical Review Fluids, Volume 6, Issue 5, May 2021
2021-02-23 The following paper has been accepted.
Flow characteristics around extremely low fineness-ratio
circular cylinders, Masahide Kuwata, Yoshiaki Abe,
Sho Yokota, Taku Nonomura, Hideo Sawada, Aiko Yakeno,
Keisuke Asai, Shigeru Obayashi,
Physical Review Fluids, Volume 6, Issue 5, May 2021
2020-03-02 Mr.Yoshikazu Yoshimura has been appointed as a JSPS Research Fellow
(DC1).
2020-01-06 Highlight has been uploaded.
2019-12-23 Mr. Hide Iwabuchi gave an oral presentation at 33rd Fluid Dynamics
Symposium, and was selected as "Remarkable Study in CFD33" of
"Journal of the Japan Society of Fluid Mechanics".
2019-11-07 Mr.Potsawat Boonjaipetch and Mr.Hiroki Tameike won the “Best
PresentationAward” at Sixteenth International Conference on Flow
Dynamics(ICFD), Sendai, Miyagi 2019.
2019-10-25 Ms.Kasumi Sasaki won the Fellow Award at JSME Symposium : Sports
engineering and Human Dynamics 2019.
2019-10-17 Mr. Masahide Kuwata gave an oral presentation at the 57th Airplane
Symposium and received the “Student Excellence Award”.
2019-10-01 Shimoyama Lab has been independent as the “Fluids Engineering with
Data Science Laboratory.” The website has moved here
2019-08-26 The following paper has been accepted.
Application of observability Gramian to targeted observation
in WRF data assimilation, R. Yoshimura, A. Yakeno,
S. Obayashi and T. Misaka, Tellus A: Dynamic Meteorology &
Oceanography.
2019-08-28 The following paper has been accepted.
Three-Dimensional Global Stability on Stuart Vortex of
Free Shear Layer, Yakeno A. and Hirota M., Progress in Turbulence
VIII.iTi 2018. Springer Proceedings in Physics, vol 226. Springer
2019-04-23 The lecture “Mathematics I” is held in Quarter 1.
2019-03-25 At the International Conference on Computational & Experimental
Engineering and Science (ICCES) ，Prof. Shigeru Obayashi and
Asst. Prof. Aiko Yashino gave an invited talk.
2019-03-20 Mr. Ryota Fukuchi gave an oral presentation and won the "Good
Presentation Award for Student"at the Japan Aerospace Society
Northern Branch 2019 Lecture and the 20th Reusable Space
Propulsion Symposium.
2018-12-06 The lecture “Fluid Design Informatics” is held in Quarter 4.
2018-07-04 This websight has been renewed.
2018-05-23 Asst. Prof. Aiko Yakeno gave an invited talk at the Fusion Research
Seminar at TFC, Tohoku University.
2018-03-12 Asst. Prof. Aiko Yakeno gave an invited talk at Imperial College
London, Department of Aeronautics.
2018-01-04 Highlight has been uploaded.
2018-01-01 A new year postcard with a picture of 'RYUTAN' has been arrived.
NewYearRYUTAN
2017-10-22 Asst. Prof. Aiko Yashino gave an invited talk at the 2nd meeting of the
Design Information Driven Study Group.
2017-10-01 Dr. Aiko Yakeno has been appointed as an assistant professor.
2017-04-20 The article has been published in Research Feature Highlights of
Tohoku University.
"Aiming high: Shigeru Obayashi is innovating human flight"
