Turbulence, science, and arts

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This is a recent picture taken in 2022.

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Jinyuan Liu

Contacts: wallturb@gmail.com, jinyuanliu@ucsd.edu
CV, Google Scholar, ORCID

Jinyuan is currently a Ph. D. student in Mechanical and Aerospace Engineering at University of California San Diego. He works with Sutanu Sarkar in the CFD Lab. His current research focus is turbulence and vortex dynamics in rotating, stratified environments.

Jinyuan received his Bachelor’s Degree in Engineering Themophysics from Tsinghua Univerisity, China, in 2020. After working as a post-baccalaureate researcher at the same institute for six months, he joined the CFD Lab in Jan. 2021. He has also been working as a pre-doctoral researcher on turbulent boundary layers at the University of Waterloo and turbulent channels at Universidad Politecnica de Madrid.

Jinyuan is also an aviation photographer (Jetphotos gallery) and he has been a member of the photography team at Airways since 2022. His shutter count exceeds 100,000. He swims and plays the trumpet when he is not pretending to be a fluid dymanicist. He plays Go (Wei-Qi) since elementary school, and was ranked amateur 5-dan by Chinese Go Association.

Education

Ph. D. student in Fluid Mechanics, Jan. 2021 - present
Department of Mechanical and Aerospace Engineering, UC San Diego
Ms. Sc. in Fluid Mechanics, Jan. 2021 - Jan. 2022
Department of Mechanical and Aerospace Engineering, UC San Diego
B. S. E. in Thermo-physics (with distinction), Aug. 2016 - June 2020
Department of Engineering Mechanics, Tsinghua University
Visiting Research Student, Sep. 2019 - Mar. 2020
School of Aeronautics, Universidad Politecnica de Madrid, advised by Javier Jimenez

Publications

Chunmei Xie, Jinyuan Liu, Jing-Wei Jiang, and Wei-Xi Huang. Numerical study on wetted and cavitating tip-vortical flows around an elliptical hydrofoil: Interplay of cavitation, vortices, and turbulence. Physics of Fluids, 33(9):093316, 2021 (link) (pdf)
Jinyuan Liu, “Large- and very-large-scale structures in turbulent channels,” Undergraduate thesis (Tsinghua Univeristy, 2020), in Chinese. (pdf)

Talks

Jinyuan Liu, Pranav Puthan, and Sutanu Sarkar. Structures of vortices in underwater hill wakes, 15th SoCal Fluids Symposium, UCLA, April 2022. (abstract) (slides)
Jinyuan Liu, Pranav Puthan, and Sutanu Sarkar. Spatiotemporal analysis of coherent structures in the wake of an underwater hill, 75th Annual Meeting of American Physical Society Division of Fluid Dynamics, Indianapolis, November 2022. (abstract)

Notes

Hydrodynamic and geostrophic assumptions, CFD Lab Tech Notes. (pdf)
Equations in fluids, CFD Lab Tech Notes. (coming soon)
Proper orthogonal decomposition, CFD Lab Tech Notes. (coming soon)
Fourier transform and spectral methods in MATLAB, CFD Lab Tech Notes. (coming soon)
Aviation photography: at the intersection of science and arts, TU night Talk (in Chinese), TUNA at Tsinghua, May 2022. (link) (slides) (YouTube)
Coherent structures in Spark 12, Spark talk (commencement address), Tsinghua, May 2020. (slides)

Memberships

Fellowship, Spark Innovative Talent Cultivation Program, Tsinghua University
Student Membership, American Physical Society, Division of Fluid Dynamics (since 2019)
Member, American Go Association

Awards

Outstanding Undergraduate Dissertation (5%), Tsinghua University, 2020
Academic Distinction Award for Graduates (10%), Tsinghua University, 2020
Second Prize for Student Research Training, Tsinghua University, 2019
Scholarship for Scientific Innovation, Tsinghua University, 2018
Scholarship for Overall Excellence, Tsinghua University, 2018
Scholarship for Academic Distinction, Tsinghua University, 2017, 2018, 2019
First Prize, National Aerospace Knowledge Competition for College Students, 2018

Teaching Experience

Teaching assistant, MAE290B Numerical Methods for PDEs (Instructor: Sutanu Sarkar), UCSD, Winter 2022
Teaching assistant, MAE214A Intro to Turbulence and Mixing (Instructor: Sutanu Sarkar), UCSD, Spring 2022

Services

Chairperson, Council of the 12th Spark Innovative Talent Cultivation Program, Tsinghua University, 2019 - present
JUMP Peer Mentor for 8 undergrads, Jacob School of Engineering, UC San Diego, 2020, 2021
Peer Mentor for 15 freshmen, School of Aerospace, Tsinghua University, 2018, 2019

Hedong (Ben) Hou is not working hard enough! Please drop him a message and remind him that the Millennium Problem of Navier-Stokes Equations is still unsolved!
Pwe is a little cat. Click here to pat him!

Fun pics

Others

My name in Chinese character is 刘晋源. Below are pictures of me taken at Tsinghua, in 2021 and 2020.

Philosophy

good taste, work hard, interest, smart