14 citations · 14 across the 2 of their papers we have counts for
7 papers
Spatiotemporal evolution of asymmetries in turbulent trailing vortices
M. A. Khodkar
The outward propagation of asymmetries introduced to originally axisymmetric turbulent flows is investigated, where 3D Batchelor vortices at high Reynolds numbers and with arbitrar…
Phase-locking of laminar wake to periodic vibrations of a circular cylinder
M. A. Khodkar, Joseph T. Klamo, Kunihiko Taira
Phase synchronization between the vortex shedding behind a two-dimensional circular cylinder and its vibrations is investigated using the phase-reduction analysis. Leveraging this…
Phase-synchronization properties of laminar cylinder wake for periodic external forcings
Mohammad Amin Khodkar, Kunihiko Taira
We investigate the synchronization properties of the two-dimensional periodic flow over a circular cylinder using the principles of phase-reduction theory. The influence of harmoni…
A Koopman-based framework for forecasting the spatiotemporal evolution of chaotic dynamics with nonlinearities modeled as exogenous forcings
Mohammad Amin Khodkar, Pedram Hassanzadeh, Athanasios Antoulas
We introduce a data-driven method and shows its skills for spatiotemporal prediction of high-dimensional chaotic dynamics and turbulence. The method is based on a finite-dimensiona…
Data-driven Spatio-temporal Prediction of High-dimensional Geophysical Turbulence using Koopman Operator Approximation
M. A. Khodkar, Athanasios C. Antoulas, Pedram Hassanzadeh
We show the skills of a data-driven low-dimensional linear model in predicting the spatio-temporal evolution of turbulent Rayleigh-Bénard convection. The model is based on dynamic…
Data-driven reduced modelling of turbulent Rayleigh-Benard convection using DMD-enhanced Fluctuation-Dissipation Theorem
M. A. Khodkar, Pedram Hassanzadeh
A data-driven, model-free framework is introduced for calculating Reduced-Order Models (ROMs) capable of accurately predicting time-mean responses to external forcings, or forcings…