Gallery

All simulations and visualizations are my own work. Please email me to request permission before reuse.

Vorticity evolution in a doubly periodic square domain, simulated on a \(1024^2\) grid.

Decaying HIT. Freely decaying turbulence after the forcing is switched off. You can see similar swirling patterns when you stir your morning coffee!
Forced HIT. Turbulence sustained by continuous energy input from random forcing.
Volume rendering of vorticity magnitude in incompressible turbulent channel flow at \(Re_b = 5150\) (corresponding to \(Re_\tau \approx 300\)). The computational domain is \(4\pi h \times 2h \times 2\pi h\), where \(h\) is the channel half-height. Visualization rendered in ParaView.
Volume rendering of vorticity magnitude in four-way coupled particle-laden turbulent channel flow at \(Re_b = 5150\) and \(St^+ = 100\), a regime of pronounced drag reduction and turbulence attenuation. Only particles in low-speed fluid regions are shown, colored by their wall-normal velocity (\(v_p > 0\), red; \(v_p < 0\), blue), revealing the lift-up of particle streaks clustered in these regions. See J. Fluid Mech. 1015, A55 (2025) for the physical analysis. Visualization rendered in ParaView.