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Charles Meneveau wins the Batchelor Prize 2024

Prof. Charles Meneveau Johns Hopkins University (USA)

Abstract Biography

In this presentation we provide an overview of how knowledge about turbulent boundary layer structure and statistics has had a profound impact on our understanding of wind farm performance. We discuss the asymptotic limit of the fully developed wind turbine array boundary layer in which a double-logarithmic mean velocity distribution emerges for the horizontally averaged velocity. We discuss the question of power density and stress the importance of turbulence in facilitating vertical transport of mean kinetic energy. Of direct relevance to power variability, we show how models of wave-number frequency spectra of turbulent boundary layers can be used to predict frequency spectra of fluctuating power generation of entire wind farms. Focusing on individual wake structures, we then discuss the technique of yawing wind turbines for wake steering, wherein turbine wakes can be redirected to reduce interactions with downstream turbines. The wake deflection is associated with the generation of counter-rotating streamwise vortices of very large size (macro-vortices), whose magnitude can be predicted using classical lifting line theory. Finally, we summarize continuing efforts to couple local wake models with global boundary layer models in new-generation analytical wind farm models, and close by stressing the importance and continued need for reduced analytical models of flow phenomena affecting various aspects of wind energy.

Charles Meneveau is the Louis M. Sardella Professor in the Department of Mechanical Engineering and is Associate Director of the Institute for Data Intensive Engineering and Science (IDIES). He holds joint appointments in the JHU Department of Physics and Astronomy and of Environmental Health and Engineering. His area of research is focused on understanding and modeling hydrodynamic turbulence, and complexity in fluid mechanics in general. The insights that have emerged from Professor Meneveau’s work have led to new numerical models for Large Eddy Simulations (LES) and applications in engineering and environmental flows, including wind farms. He also focuses on developing methods to share the very large data sets that arise in computational fluid dynamics. He received his B.S. degree in Mechanical Engineering from the Universidad Técnica Federico Santa María in Valparaíso, Chile, in 1985 and advanced degrees from Yale University. He then was a postdoctoral fellow at the Center for Turbulence Research at Stanford and has been on the Johns Hopkins University faculty since 1990. Prof. Meneveau is Deputy Editor of the Journal of Fluid Mechanics and has served as the Editor-in-Chief of the Journal of Turbulence until 2015. Professor Meneveau is a member of the US National Academy of Engineering, a foreign corresponding member of the Chilean Academy of Sciences, a Fellow of APS, ASME and AAM, and the recipient of an honorary doctorate from the Danish Technical University.

The G K Batchelor Prize for 2024 has been awarded to Professor Charles Meneveau, Louis M. Sardella Professor of Mechanical Engineering, Johns Hopkins University, USA. The award and Batchelor prize lecture will take place in August 2024 at the International Congress of Theoretical and Applied Mechanics (ICTAM) in Daegu, South Korea.

This prestigious prize of $25,000 is sponsored by the Journal of Fluid Mechanics and is awarded every 4 years at ICTAM to recognise the achievements of an active scientist who has made significant research contributions to fluid mechanics over the previous decade. Younger researchers are equally eligible for consideration as those who are more established, and the work should be of great current interest (representing, for example, an emerging field of application of fluid mechanics or a significant breakthrough in an established branch of the subject).

The international panel of experts considered many strong nominations from a diverse field. Professor Meneveau receives the prize for his high-impact fundamental contributions to the study of turbulence and wall-bounded flows, and for bringing insightful and rigorous fluid mechanics to the science of wind turbines and wind farms for the benefit of society.

Professor Meneveau expressed his delight in being awarded the prize:

‘Receiving the Batchelor-named prize from our community is profoundly meaningful for me, my students, postdocs, and collaborators. George Batchelor's enduring legacy in this field grows more influential each day, especially as fluid mechanics becomes increasingly vital, notably in shaping strategies for sustaining civilization on our Fluid Earth. I am thankful to Cambridge University Press for establishing this prize and look forward to participating in ICTAM 2024.’

Professor Meneveau will present his prize lecture at 11am, Wednesday 28th August at ICTAM 2024:

Program at a Glance

Congratulations to Professor Meneveau from the G K Batchelor Prize Scientific Committee and the team at Cambridge University Press & Assessment!

Winners of the Batchelor Prize