3 citations · 6 across the 7 of their papers we have counts for
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Revisiting Bolgiano-Obukhov scaling for moderately stably stratified turbulence
Shadab Alam, Anirban Guha, Mahendra K. Verma
According to the celebrated Bolgiano--Obukhov \citep{Bolgiano_1959,Obukhov_1959} phenomenology for moderately stably stratified turbulence, the energy spectrum in the inertial rang…
An inverse technique for reconstructing ocean's density stratification from surface data
Subhajit Kar, Anirban Guha
In this article, we propose an inverse technique that accurately reconstructs the ocean's density stratification profile simply from free surface elevation data. Satellite observat…
Explosive instability due to flow over a rippled bottom
Raunak Raj, Anirban Guha
In this paper, we study Bragg resonance, i.e. the triad interaction between surface and/or interfacial waves with bottom ripple, in presence of background velocity. We show that wh…
Energy transfer in resonant and near-resonant internal wave triads for weakly non-uniform stratifications. Part I: Unbounded domain
G. Saranraj, Anirban Guha
In this paper, using multiple scale analysis we derive a generalized mathematical model for amplitude evolution, and for calculating the energy exchange in resonant and near-resona…
Failure of Nielsen-Ninomiya theorem and fragile topology in two-dimensional systems with space-time inversion symmetry: application to twisted bilayer graphene at magic angle
Junyeong Ahn, Sungjoon Park, Bohm-Jung Yang
We show that the Wannier obstruction and the fragile topology of the nearly flat bands in twisted bilayer graphene at magic angle are manifestations of the nontrivial topology of t…
Ocean bathymetry reconstruction from surface data using hydraulics theory
Subhajit Kar, Anirban Guha
Here we propose a technique that successfully reconstructs ocean bathymetry from the free surface velocity and elevation data. This technique is based on the principles of open-cha…