69 citations · 387 across the 32 of their papers we have counts for
5 papers · 2 filters
State estimation in minimal turbulent channel flow: A comparative study of 4DVar and PINN
Yifan Du, Mengze Wang, Tamer A. Zaki
The state of turbulent, minimal-channel flow is estimated from spatio-temporal sparse observations of the velocity, using both a physics-informed neural network (PINN) and adjoint-…
Reconstructing velocity and pressure from sparse noisy particle tracks using Physics-Informed Neural Networks
Patricio Clark Di Leoni, Karuna Agarwal, Tamer Zaki +2
Volume-resolving imaging techniques are rapidly advancing progress in experimental fluid mechanics. However, reconstructing the full and structured Eulerian velocity and pressure f…
Assimilation of wall-pressure measurements in high-speed flow over a cone
David A. Buchta, Stuart J. Laurence, Tamer A. Zaki
A nonlinear ensemble-variational (EnVar) data assimilation is performed in order to estimate the unknown flow field over a slender cone at Mach-6, from isolated wall-pressure measu…
Spatio-temporal Signatures of Elasto-inertial Turbulence in Viscoelastic Planar Jets
Sami Yamani, Yashasvi Raj, Tamer A. Zaki +2
The interplay between viscoelasticity and inertia in dilute polymer solutions at high deformation rates can result in inertio-elastic instabilities. The nonlinear evolution of thes…
Origin of Enhanced Skin Friction at the Onset of Boundary-Layer Transition
Mengze Wang, Gregory L. Eyink, Tamer A. Zaki
Boundary-layer transition is accompanied by a significant increase in skin friction whose origin is rigorously explained using the stochastic Lagrangian formulation of the Navier-S…