Scientific computing · CWI, Amsterdam
Small scales
Big questions
I’m Syver. I study turbulent flows, the details our simulations cannot see, and how to model what’s missing.
Explore the ideasIllustrated atmosphere
Your time integrator
is a filter
A simulation smooths the world in space. It does the same in time. What happens when the model accounts for both?
Read the interactive essayAnalytic signal · illustrative, not experimental data
02 Notes from the work
All writing ↗What symmetry buys a learned turbulence model
What do symmetry constraints buy a neural turbulence closure? Same accuracy floor, 25× fewer parameters, and one missing input for Reynolds-number generalization. An interactive companion to the paper.
Interactive essayYour time integrator is a filter
Time integration acts as a filter too: at practical CFL numbers the time-integration error dominates the coarse-simulation residual, and one extra closure term fixes it. Interactive companion to the paper.
Interactive essayYour grid is a filter
An interactive tour of exact expressions for the unresolved stress in finite-volume LES: the grid is a filter, and the classic subgrid stress is the wrong modeling target.
Interactive essay03 A little context
Between mathematics
and the moving world
I’m a postdoctoral researcher at CWI in Amsterdam. My work connects numerical methods, machine learning, and the physics of turbulence. Away from it: history, languages, and the piano.
More about meIncompressibleNavierStokes.jl
Differentiable, GPU-accelerated fluid simulation. The software behind the questions, and a place to start asking your own.
Explore the software