3 papers
physics.flu-dyn2026
Coupled Modal-Nonmodal Interactions Due to Periodic, Infinite Train of Convecting Vortices (TCV)
Jyothi Kumar Puttam, Prasannabalaji Sundaram, Vajjala K. Suman +4
Events during transition to turbulence either follow modal or non-modal routes, or combinations of the two. Here, we report a computational investigation of strong freestream excit…
physics.flu-dyn2025
DNS and role of round-off error: Two-Dimensional Taylor-Green vortex problem
V. K. Suman, T. K. Sengupta
The role of round-off errors on the receptivity and instability of fluid flows are conclusively established for the first time using high accuracy simulations of the benchmark two-…
physics.flu-dyn2023
Bifurcation sequence of two-dimensional Taylor-Green vortex via vortex interactions: Evolution of energy spectrum
Tapan K. Sengupta, Ankan Sarkar, Bhavna Joshi +2
The vorticity dynamics of the two-dimensional (2D) Taylor-Green vortex (TGV) problem is investigated in its multi-cellular configuration by solving the incompressible Navier-Stokes…