P
Priyanka Shukla
Researcher at Indian Institute of Technology Madras
Publications - 26
Citations - 205
Priyanka Shukla is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Instability & Shear flow. The author has an hindex of 8, co-authored 26 publications receiving 182 citations. Previous affiliations of Priyanka Shukla include Indian Institute of Science Education and Research, Kolkata & Jawaharlal Nehru Centre for Advanced Scientific Research.
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Universality of shear-banding instability and crystallization in sheared granular fluid
TL;DR: In this paper, the linear stability analysis of uniform shear flow of granular materials is revisited using several cases of a Navier-Stokes-level constitutive model in which we incorporate the global equation of states for pressure and thermal conductivity and the shear viscosity is allowed to diverge at a density νμ (<νm), with all other transport coefficients diverging at νm.
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Landau-type order parameter equation for shear banding in granular Couette flow.
Priyanka Shukla,Meheboob Alam +1 more
TL;DR: The analytical bifurcation theory suggests that there is a subcritical finite-amplitude instability that is likely to lead to shear-band formation in dilute flows, which is in agreement with previous numerical simulations.
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Weakly nonlinear theory of shear-banding instability in a granular plane Couette flow: analytical solution, comparison with numerics and bifurcation
Priyanka Shukla,Meheboob Alam +1 more
TL;DR: In this article, a weakly nonlinear theory, in terms of the well-known Landau equation, has been developed to describe the nonlinear saturation of the shearbanding instability in a rapid granular plane Couette flow using the amplitude expansion method.
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Nonlinear stability and patterns in granular plane Couette flow: Hopf and pitchfork bifurcations, and evidence for resonance
Priyanka Shukla,Meheboob Alam +1 more
TL;DR: In this article, the first evidence of a variety of nonlinear equilibrium states of travelling and stationary waves is provided in a two-dimensional granular plane Couette flow via nonlinear stability analysis.
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Fingering dynamics driven by a precipitation reaction: Nonlinear simulations.
TL;DR: It is shown that, similarly to reactive viscous fingering patterns, the precipitation fingering structures differ depending on whether A invades B or vice versa, and asymmetry can be related to underlying asymmetric concentration profiles developing when diffusion coefficients or initial concentrations of the reactants differ.