Jinge Wang

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My work sits at the intersection of high-performance computing, applied mathematics, and fluid dynamics. My primary expertise lies in developing highly parallelized numerical frameworks to simulate complex physical systems, particularly in the areas of hydrodynamic instability and nonlinear wave interactions. My research investigates rotating shear flows — studying phenomena such as triadic wave resonance and the Zombie Vortex Instability. The applications of this work range from aeronautical studies of aircraft wake vortices to the astrophysical modeling of protoplanetary disks.

Throughout my doctoral research and my industrial experience at Apple, my focus has been on pushing the performance boundaries of large-scale infrastructure. I have modernized legacy codebases into parallel pseudo-spectral frameworks (like MLegS) and architected core components for high-performance multi-physics solvers. My approach relies on translating rigorous mathematical theory into highly scalable software architecture, ultimately enabling the high-fidelity simulation of complex physical phenomena.

Prior to joining Berkeley, I earned my bachelor’s degree from the University of Rochester, where I conducted extensive experimental research on advection-reaction-diffusion systems.

Core Competencies:

  • Computational Fluid Dynamics (CFD): Pseudo-spectral methods, Exponential-time-differencing (ETD) schemes, incompressible and Boussinesq equations, rotating/stratified flows, vortex dynamics, wave interactions.

  • High-Performance Computing (HPC): Hybrid MPI/OpenMP parallelization, custom GPU (CUDA) kernels, modular Fortran architecture, supercomputing scalability.

  • Applied Math & Theoretical Physics: Multi-scale perturbation theory, asymptotic analysis, and reduced-order modeling for nonlinear wave interactions.

 

My PhD Exit Seminar:

The complete presentation slides can be accessed here.

 

If you can’t find me at the lab, it is likely that I am windsurfing at Cal Sailing Club. I have been windsurfing for more than 13 years, but I am yet to launch my first forward loop – finger crossed that I will land one before I graduate. <- Turned out that I did not manage to learn forward loop before leaving Cal. 🙁

 

Windsurfing on an old Mistral One Design. Xuanwu Lake, Nanjing, China

Research at CFD Lab with Prof. Marcus:

Full-Length Articles

Haley Y. Wohlever, Jinge Wang, Philip S. Marcus (2026) Zombie Vortex Instability in rotating, stratified, shear flows: global stability and viscous thresholds, In preparation

Jinge Wang, Philip S Marcus (2026) A semi-analytical pseudo-spectral method for 3D Boussinesq equations of rotating, stratified flows in unbounded cylindrical domains, arXiv preprint arXiv:2603.07046, url

Sangjoon Lee, Jinge Wang (2025) MLegS: Modernized and Parallelized Mapped Legendre Spectral Method Code, Zenodo, url, doi:10.5281/zenodo.17095748

Jinge Wang, Sangjoon Lee, Philip S. Marcus (2024) Perturbation analysis of triadic resonance in columnar vortices: selection rules and the roles of external forcing and critical layers, arXiv preprint arXiv:2402.05287, url

Haris M. Sheikh, Sangjoon Lee, Jinge Wang, Philip S. Marcus (2023) Airfoil optimization using Design-by-Morphing, Journal of Computational Design and Engineering 10(4), p. 1443-1459, url, doi:10.1093/jcde/qwad059

Conference Papers/Abstracts

Jinge Wang, Philip S. Marcus (2025) Baroclinic Critical Layers and the Zombie Vortex Instability in Rotating Stratified Cylindrical Flows, APS Division of Fluid Dynamics Meeting Abstracts

Sangjoon Lee, Jinge Wang, Philip S. Marcus (2024) Modernized and Parallelized Mapped Legendre Spectral Method Code for Unbounded Vortical Flow Simulations, APS Division of Fluid Dynamics Meeting Abstracts, p. L16-007, url

Jinge Wang, Sangjoon Lee, Philip S. Marcus (2024) Stability Analysis of the Q-Vortex: Critical Swirling Parameter Determination via Perturbation Theories and Resonant Triadic Perturbations in the Sub-Critical Region, APS Division of Fluid Dynamics Meeting Abstracts, p. J38-005, url

Jinge Wang, Sangjoon Lee, Philip S. Marcus (2023) Three-Wave Resonance in Neutrally Stable Wake Vortices, APS Division of Fluid Dynamics Meeting Abstracts, p. ZC38-002, url

Philip S. Marcus, Jinge Wang, Sangjoon Lee (2022) A General Framework for Destabilizing Neutrally-Stable Flows Applied to Aircraft Wake Vortices, APS Division of Fluid Dynamics Meeting Abstracts, p. L18-001, url

Jinge Wang, Sangjoon Lee, Philip S. Marcus (2021) Destabilizing Neutrally Stable Wake Vortices Using Degenerate Eigenmodes, APS Division of Fluid Dynamics Meeting Abstracts, p. E24-003, url