Leon Li

About

My research is focused on the experimental investigation of wake behaviours of various objects subjected to the influence of different incoming turbulent flows. The objects that I'm interested in range from simple shapes such as a sphere or a cube, to more complicated real-world applications such as wind turbines and airfoils. We control the incoming turbulence through an active grid in a water channel facility, and the diagnostic tools we use include constant temperature annemometry (CTA), laser Doppler anemometry (LDA), and particle image velocimetry (PIV).

Publications

2025

Li, Leon; Bullee, Pim Adriaan; Ellingsen, Simen Andreas Ådnøy; Hearst, Robert Jason. (2025) Sub-surface turbulence or non-breaking capillary waves: which dominates air–water gas transfer?. Journal of Fluid Mechanics
Academic article

2024

Li, Leon; Hearst, Robert Jason. (2024) The Near- and Intermediate-Wakes of Cylinders Under the Influence of Freestream Turbulence. Springer Nature
Academic chapter/article/Conference paper
Neunaber, Ingrid Johanne; Asadi, Masoud; Li, Leon; Hearst, Robert Jason. (2024) Comparing Hot-Wire Measurements and Particle Image Velocimetry of Turbulence Fields Generated by an Active Grid. Springer Nature
Academic chapter/article/Conference paper
Bullee, Pim Adriaan; Weichert, Stefan; Nore, Astri; Li, Leon; Ellingsen, Simen Andreas Ådnøy; Hearst, Robert Jason. (2024) The influence of water turbulence on surface deformations and the gas transfer rate across an air–water interface. Experiments in Fluids
Academic article
Hillestad, Johannes Næsset; Yadala Venkata, Srikar; Neunaber, Ingrid Johanne; Li, Leon; Hearst, Robert Jason; Worth, Nicholas Alexander. (2024) Volumetric visualization of vanishing vortices in wind turbine wakes. Physical Review Fluids
Academic article

2023

Kildal, Oddbjørn; Li, Leon; Hearst, Robert Jason; Petersen, Øyvind Wiig; Øiseth, Ole Andre. (2023) On the use of an active turbulence grid in wind tunnel testing of bridge decks. Journal of Wind Engineering and Industrial Aerodynamics
Academic article

2021

Jooss, Yannick; Li, Leon; Bracchi, Tania; Hearst, Robert Jason. (2021) Spatial development of a turbulent boundary layer subjected to freestream turbulence. Journal of Fluid Mechanics
Academic article
Li, Leon; Hearst, R. Jason. (2021) The influence of freestream turbulence on the temporal pressure distribution and lift of an airfoil. Journal of Wind Engineering and Industrial Aerodynamics
Academic article

2020

Li, Leon; Hearst, R. Jason; Ferreira, Manuel A.; Ganapathisubramani, Bharathram. (2020) The near-field of a lab-scale wind turbine in tailored turbulent shear flows. Renewable Energy
Academic article

2019

Vinnes, Magnus Kyrkjebø; Li, Leon; Hearst, R. Jason. (2019) PIV of the Flow Over a NREL S826 Airfoil Subjected to Different Ice Accretions. Springer Publishing Company
Academic chapter/article/Conference paper
Li, Leon; Hearst, R. Jason; Ganapathisubramani, Bharathram. (2019) The Mean Velocity of the Near-Field of a Lab-Scale Wind Turbine in Tailored Turbulent Shear Flows. Springer Publishing Company
Academic chapter/article/Conference paper

Journal publications

Li, Leon; Bullee, Pim Adriaan; Ellingsen, Simen Andreas Ådnøy; Hearst, Robert Jason. (2025) Sub-surface turbulence or non-breaking capillary waves: which dominates air–water gas transfer?. Journal of Fluid Mechanics
Academic article
Bullee, Pim Adriaan; Weichert, Stefan; Nore, Astri; Li, Leon; Ellingsen, Simen Andreas Ådnøy; Hearst, Robert Jason. (2024) The influence of water turbulence on surface deformations and the gas transfer rate across an air–water interface. Experiments in Fluids
Academic article
Hillestad, Johannes Næsset; Yadala Venkata, Srikar; Neunaber, Ingrid Johanne; Li, Leon; Hearst, Robert Jason; Worth, Nicholas Alexander. (2024) Volumetric visualization of vanishing vortices in wind turbine wakes. Physical Review Fluids
Academic article
Kildal, Oddbjørn; Li, Leon; Hearst, Robert Jason; Petersen, Øyvind Wiig; Øiseth, Ole Andre. (2023) On the use of an active turbulence grid in wind tunnel testing of bridge decks. Journal of Wind Engineering and Industrial Aerodynamics
Academic article
Jooss, Yannick; Li, Leon; Bracchi, Tania; Hearst, Robert Jason. (2021) Spatial development of a turbulent boundary layer subjected to freestream turbulence. Journal of Fluid Mechanics
Academic article
Li, Leon; Hearst, R. Jason. (2021) The influence of freestream turbulence on the temporal pressure distribution and lift of an airfoil. Journal of Wind Engineering and Industrial Aerodynamics
Academic article
Li, Leon; Hearst, R. Jason; Ferreira, Manuel A.; Ganapathisubramani, Bharathram. (2020) The near-field of a lab-scale wind turbine in tailored turbulent shear flows. Renewable Energy
Academic article

Part of book/report

Li, Leon; Hearst, Robert Jason. (2024) The Near- and Intermediate-Wakes of Cylinders Under the Influence of Freestream Turbulence. Springer Nature
Academic chapter/article/Conference paper
Neunaber, Ingrid Johanne; Asadi, Masoud; Li, Leon; Hearst, Robert Jason. (2024) Comparing Hot-Wire Measurements and Particle Image Velocimetry of Turbulence Fields Generated by an Active Grid. Springer Nature
Academic chapter/article/Conference paper
Vinnes, Magnus Kyrkjebø; Li, Leon; Hearst, R. Jason. (2019) PIV of the Flow Over a NREL S826 Airfoil Subjected to Different Ice Accretions. Springer Publishing Company
Academic chapter/article/Conference paper
Li, Leon; Hearst, R. Jason; Ganapathisubramani, Bharathram. (2019) The Mean Velocity of the Near-Field of a Lab-Scale Wind Turbine in Tailored Turbulent Shear Flows. Springer Publishing Company
Academic chapter/article/Conference paper

Teaching

Courses

TEP4112 - Turbulent Flows

Språkvelger