53 citations · 86 across the 12 of their papers we have counts for
12 papers
Physics-informed neural networks for viscoelastic fluid flows around a cylinder in a two-dimensional channel
Midhuna Suresh, Akanksha Gupta
Grid-based fluid dynamics solvers routinely struggle with exhaustive meshing demands and ill-posed inverse problems. A practical mesh-free alternative is given by Physics-informed…
Physics-Informed Kolmogorov-Arnold networks for viscoelastic fluid equations
Suryanshu Singh, Midhuna Suresh, Akanksha Gupta
Kolmogorov-Arnold Networks (KANs), inspired by the Kolmogorov Arnold representation theorem, provide an interpretable alternative to multilayer perceptrons (MLPs) by using learnabl…
Understanding Stokes drift mechanism via crest and trough phase estimates
Anirban Guha, Akanksha Gupta
By providing mathematical estimates, this paper answers a fundamental question -- "what leads to Stokes drift"? Although overwhelmingly understood for water waves, Stokes drift is…
A new Lagrangian drift mechanism due to current-bathymetry interactions: applications in coastal cross-shelf transport
Akanksha Gupta, Anirban Guha
We show that in free surface flows, a uniform, streamwise current over small-amplitude wavy bottom topography generates cross-stream drift velocity. This drift mechanism, referred…
Pairs of surface wave packets with zero-sum energy in the Hawking radiation analog
Anirban Guha, Eyal Heifetz, Akanksha Gupta
Here we propose a minimal analog gravity setup and suggest how to select two surface gravity wave packets in order to mimic some key aspects of Hawking radiation from the horizon o…
Modified Stokes drift due to surface waves and corrugated sea-floor interactions with and without a mean current
Akanksha Gupta, Anirban Guha
In this paper, we show that Stokes drift may be significantly affected when an incident intermediate or shallow water surface wave travels over a corrugated sea-floor. The underlyi…
Sweeping effect and Taylor's hypothesis via correlation function
Mahendra Kumar Verma, Abhishek Kumar, Akanksha Gupta
We demonstrate the sweeping effect in turbulence using numerical simulations of hydrodynamic turbulence without a mean velocity. The velocity correlation function, C(k, τ ) decays…
Energy and enstrophy spectra and fluxes for the inertial-dissipation range of two-dimensional turbulence
Akanksha Gupta, Rohith Jayaram, Anando G. Chaterjee +3
In this paper, using Pao's conjecture [Y.-H. Pao, Phys. Fluids 11, 1371 (1968)], we derive expressions for the spectra and fluxes of kinetic energy and enstrophy for two-dimensiona…
Emergence of inertial waves from coherent vortex source in Yukawa medium
Akanksha Gupta, Rajaraman Ganesh
The evolution of isotropic, nondispersive, inertial wave, emerging from an unsteady initial coherent vortex is studied for strongly correlated Yukawa medium using 2D molecular dyna…
Viscoelastic effects on asymmetric two-dimensional vortex patterns in a strongly coupled dusty plasma
Akanksha Gupta, Rupak Mukherjee, Rajaraman Ganesh
Strongly coupled dusty plasma medium is often described as a viscoelastic fluid that retains its memory. In a flowing dusty plasma medium, vortices of different sizes appear when t…
Compressibility effects on quasistationary vortex and transient hole patterns through vortex merger
Rupak Mukherjee, Akanksha Gupta, Rajaraman Ganesh
The effect of compressibility in hydrodynamic vortex merging has been discussed. In the past, in incompressible limit it has been observed that the merging of a collection of inten…
Molecular shear heating and vortex dynamics in thermostatted two-dimensional Yukawa liquids
Akanksha Gupta, Rajaraman Ganesh, Ashwin Joy
It is well known that two-dimensional macroscale shear flows are susceptible to instabilities leading to macroscale vortical structures. The linear and nonlinear fate of such a mac…