3 papers
physics.flu-dyn2026
Scalar mixing in non-Markovian homogeneous isotropic synthetic turbulence
Pratyush S. Awasthi, Joaquim P. Jossy, Amitabh Bhattacharya +1
We show that non-Markovianity of the velocity field is an essential property of turbulent mixing. We demonstrate this via passive scalar mixing by synthetically generated stochasti…
physics.flu-dyn2025
Active Scalar Mixing by Homogeneous Isotropic Turbulence
Joaquim P. Jossy, Pratyush S. Awasthi, Prateek Gupta
We study the mixing of active scalars by homogeneous isotropic incompressible stochastic velocity fields. We consider both Navier-Stokes generated turbulent fields as well as artif…
physics.flu-dyn2025
Role of phase distortion in nonlinear saturation of the unstable acoustic modes in hypersonic parallel flow boundary layer
Altaf Ahmed, Joaquim P. Jossy, Prateek Gupta
We analyze the role of the relative phasing in the nonlinear saturation of the unstable Mack modes in a hypersonic parallel flow boundary layer in two dimensions (2D). As the linea…