Hyeoksu Lee

GitHub / Linkedin / Google Scholar
Email: hyeoksu@caltech.edu

Blog

I am a Ph.D. candidate advised by Prof. Tim Colonius at the Computational and Data-Driven Fluid Dynamics Lab. My current research interest lies in computational fluid dynamics, multiphase flows and high performance computing. Previously, I worked on various topics in fluid dynamics including ship hydrodynamics, biological fluid dynamics, and machine-learning-based modeling and optimization.

🎉News
[Mar 2025] Our new paper on MFC 5.0 is now available on arXiv
[Mar 2025] Our work on NN-based flapping wing optimization was featured by Scilight
[Mar 2025] One first-author paper was published on Physics of Fluids as Featured Articles

Education

Ph.D Candidate in Mechanical Engineering @California Institute of Technology

M.S. in Mechanical Engineering @Seoul National University

B.S. in Naval Architecture and Ocean Engineering @Seoul National University
Summa Cum Laude

Research Interest

Fluid mechanics: multi-phase flows and biological fluid dynamics
Numerical methods: multi-scale multi-phase flow models
High-performance computing: MPI- and GPU-accelerated simulations
Machine learning: reduced-order models, physics-informed neural network

Publication

B. Wilfong, H. Le Berre, A. Radhakrishnan, A. Gupta, D. Vaca-Revelo, D. Adam, H. Yu, H. Lee, J. R. Chreim, M. Carcana Barbosa, Y. Zhang, E. Cisneros-Garibay, A. Gnanaskandan, M. Rodriguez Jr., R. D. Budiardja, S. Abbott, T. Colonius and S. H. Bryngelson, "MFC 5.0: An exascale many-physics flow solver," arXiv preprint, arXiv:2503.07953, 2025

H. Lee, S. Oh and H. Choi, "Neural-network based optimization of the wing kinematics and geometry of a hovering flapping flight," Physics of Fluids, 37(3), 031918, 2025
*selected as Featured Articles
*featured by Scilight

Talks

H. Lee and T. Colonius, "Polydisperse bubble dynamics during cavitation inception in turbulent shear flows," 12th International Conference on Multiphase Flow, Toulouse, France, May 12-16, 2025

H. Lee and T. Colonius, "One-way and two-way coupled simulations of cavitation inception in turbulent shear flows with polydisperse bubbles," 2024 American Physical Society Division of Fluid Dynamics, Salt Lake City, Utah, USA, November 24-26, 2024

H. Lee, S. H. Bryngelson and T. Colonius, "Cavitation inception in a turbulent mixing layer," 2023 American Physical Society Division of Fluid Dynamics, Washington DC, USA, November 19-21, 2023

H. Lee, S. Oh and H. Choi, "Machine-learning based optimization of the wing kinematics and geometry of a hovering flapping flight," 2021 Korean Society of Mechanical Engineers Annual Conference, Gwangju, Korea, November 3-6, 2021

H. Lee, S. Oh and H. Choi, "Machine-learning based prediction of aerodynamic performance of a flapping wing in hover," 2020 Korean Society of Mechanical Engineers Annual Conference, Online, December 16-18, 2020

Honors and Awards

Allan Acosta Endowed Graduate Fellowship
California Institute of Technology, 2022

KISTI Supercomputing Award
Korean Society for Computational Fluids Engineering, 2021

Certificate of Commendation
Korea Maritime Transportation Safety Authority, 2020

Excellence Award in EDISON CFD Software Challenge
Korea Institute of Science and Technology Information, 2019

National Scholarship for Science and Engineering
Korea Student Aid Foundation, Spring 2016 - Fall 2019

Eminence Scholarship
Seoul National University, Fall 2014 - Fall 2015