29 citations · 73 across the 6 of their papers we have counts for
6 papers
Mechanisms of shock-induced initiation at micro-scale defects in energetic crystal-binder systems
Pratik Das, H. S. Udaykumar
Crystals of energetic materials, such as HMX, embedded in plastic binders are the building blocks of plastic-bonded explosives. Such heterogeneous energetic materials contain micro…
Numerical Investigation of Flow Structures Around a Cylindrical Afterbody Under Supersonic Condition
Pratik Das, Ashoke De
Large Eddy Simulation (LES) with dynamic Smagorinsky model has been applied to numerically investigate the complicated flow structures that evolve in the near wake of a cylindrical…
Numerical study of flow physics in supersonic base-flow with mass bleed
Pratik Das, Ashoke De
Large Eddy Simulation (LES) with dynamic sub-grid scale eddy viscosity model has been applied to numerically investigate the evolution of complicated flow structures in supersonic…
Decay of baryon inhomogeneities in an expanding universe
Pratik K. Das, Sovan Sau, Abhisek Saha +1
Baryon inhomogeneities can be generated very early in the universe. These inhomogeneities then decay by particle diffusion in an expanding universe. We study the decay of these bar…
A simulation-derived surrogate model for the vaporization rate of aluminum droplets heated by a passing shock wave
Pratik Das, H. S. Udaykumar
The vaporization rate of aluminum droplets in shocked flows plays a crucial role in determining the energy release rate during the combustion of the aluminized energetic materials.…
A novel approach to quantify the structural distortions of U/Th snub-disphenoids and their role in zircon to reidite type phase transitions of uranothorite
Sudip Kumar Mondal, Pratik Kr. Das, Nibir Mandal +1
Our density functional study reveals a peculiar relation between the normalized Th content i.e. Th/(U+Th) and the hydrostatic pressure enforcing zircon to reidite type transition i…