Proceedings of the 10th IUTAM Symposium on Laminar-Turbulent Transition

Zusatztext

<p class="MsoNormal"><span lang="EN-US">The 10th IUTAM Symposium on Laminar-Turbulent Transition, held in September 2024 at Shinshu University in Nagano, Japan, attracted nearly 135 participants from 18 countries across five continents and featured more than 100 presentations in addition to keynote and plenary lectures by eight internationally renowned invited speakers. Topics included high-speed flows, boundary layer transition, cross-flow instability, free-stream turbulence, roughness, separation, general instabilities, and complex flows. The presentations were a well-balanced mix of theoretical, numerical, and experimental approaches that are necessary to advance the field of instability and transition. That experiments still have a role to play is especially true for boundary layer transition and separation at all speed ranges, since non-ideal boundary conditions (such as roughness, free-stream turbulence, sound, heat transfer, etc.) that are hard to accurately model play an important role for how disturbances enter into and develop in the system. </span></p> <p class="MsoNormal"><span lang="EN-US">This book contains selected contributions representing a wide range of disciplines presented at the symposium. Researchers studying transition to turbulence and engineers who must deal with this problem, e.g. those in the aeronautical field, will easily find meaningful ideas and knowledge in these proceedings.</span></p>

Autorenportrait

<p class="MsoNormal"><em><span lang="EN-US">Kentaro Kato </span></em><span lang="EN-US">is Assistant Professor at the Department of Mechanical Systems Engineering, Faculty of Engineering, Shinshu University. After studying mechanical engineering at Keio University, he undertook a PhD program at Technical University of Munich, Germany (2011-2014) under the Erasmus Mundus BEAM project, then earned his PhD in 2017 at Keio University. After a post-doctoral fellowship at the Royal Institute of Technology in Sweden, he has been working at his current position at Shinshu University since 2022. Based on systematic experiments on instabilities and transitions in three-dimensional boundary layers, especially those occurring on rotating bodies, he has proposed a new scaling of instabilities causing transition. From the analysis of quantitative data of the experiments, he is currently continuing his research on the relationship between statistics and eddy structure of the flow, the influence of curvature and rotation on instability and turbulent transition, as well as its physical interpretation.</span></p> <p class="MsoNormal"><em><span lang="EN-US">Ayumu Inasawa </span></em><span lang="EN-US">is Associate Professor of the Department of Aeronautics and Astronautics, Faculty of System Design, Tokyo Metropolitan University. He received his Ph. D. in 2005 in mechanical engineering at Tohoku University and became a Research Associate at Tokyo Metropolitan University.<span style="mso-spacerun: yes;"> </span>In 2013, he was promoted to Associate Professor. His research interests include flow instability, boundary-layer transition, aerodynamic sound, thermal fluid dynamics, and flow control. His present research topic is drag reduction by riblets aiming at actual implementation, natural transition in boundary layers, and experimental flow control using distributed surface heating. He has also developed an ultra-low-noise hot-wire anemometer with integrated probe and bridge circuit, for which he received an excellent application award from the Japan Society of Fluid Mechanics in 2020.</span></p> <p class="MsoNormal"><em><span lang="EN-US">Masaharu Matsubara </span></em><span lang="EN-US">is Professor of Mechanical Systems Engineering at Shinshu University. He studied mechanical engineering at Keio University and received his Ph. D. in 1993. He has worked as a postdoctoral fellow at the Royal Institute of Technology, Sweden (1993-1996) and Tohoku University, Japan (1996-1998), and has been at Shinshu University since 2000. He has been working mainly on experimental studies of boundary-layer transition due to free-stream turbulence, for which he received a best-paper award from the Japan Society of Fluid Mechanics in 2005. His present research topic is the extraction of disturbances using linear response in turbulent shear flows, attempting to quantify the structure and growth of flapping modes in two-dimensional turbulent jets and near-wall streaks in turbulent boundary layers. He has also developed an experimental approach to determining the intermittency rate of transitional channel flows and the large-scale structures that appear therein.</span></p>

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