activity
20202025
most citedEvolution of Perturbation in Quiescent Medium

1 citations · 1 across the 7 of their papers we have counts for

collaborators

7 papers

physics.flu-dyn2025

Spatio-temporal pulse propagation during highly-resolved onset of Rayleigh-Taylor and Kelvin-Helmholtz Rayleigh-Taylor instabilities

Bhavna Joshi, Aditi Sengupta, Yassin Ajanif +1

The present study explores the onset of the Rayleigh-Taylor instability (RTI) and Kelvin-Helmholtz Rayleigh-Taylor instability (KHRTI) with highly-resolved direct numerical simulat…

physics.flu-dyn2024

Pulse propagation in the quiescent environment during direct numerical simulation of Rayleigh-Taylor instability: Solution by Bromwich contour integral method

Tapan K. Sengupta, Bhavna Joshi, Prasannabalaji Sundaram

In: {\it "Three-dimensional direct numerical simulation (DNS) of Rayleigh-Taylor instability (RTI) trigerred by acoustic excitation -- Sengupta et al. {\bf 34},054108 (2022)"} the…

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…

physics.flu-dyn2023

Perturbation Field in The Presence of Uniform Mean Flow: Doppler Effect for Flows and Acoustics

Tapan K. Sengupta, Aditi Sengupta, Bhavna Joshi +1

Having developed the perturbation equation for a dissipative quiescent medium for planar propagation using the linearized compressible Navier-Stokes equation without the Stokes' hy…

physics.flu-dyn2023

Equation for Aeroacoustics in a Quiescent Environment

Tapan K. Sengupta, Aditi Sengupta, Bhavna Joshi

The perturbation equation for aeroacoustics has been derived in a dissipative medium from the linearized compressible Navier-Stokes equation without any assumption, by expressing t…

physics.flu-dyn2023★ 1 cited

Evolution of Perturbation in Quiescent Medium

Tapan K. Sengupta, Shivam K. Jha, Aditi Sengupta +2

Here, the perturbation equation for a dissipative medium is derived from the first principle from the linearized compressible Navier-Stokes equation without Stokes's hypothesis. Th…

math.CO2020

Filtering cohomology of ordinary and Lagrangian Grassmannians

The 2020 Polymath Jr. REU "q-binomials, the Grassmannian group", : +31

This paper studies, for a positive integer , the subalgebra of the cohomology ring of the complex Grassmannians generated by the elements of degree at most . We build in two…