Dr Rahil Valani: Publications

Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation

Journal of Fluid Mechanics Cambridge University Press (CUP) 990 (2024) a13

Authors:

Rahil N Valani, Brendan Harding, Yvonne M Stokes

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Unpredictable tunneling in a retarded bistable potential

Chaos An Interdisciplinary Journal of Nonlinear Science AIP Publishing 34:4 (2024) 043117

Authors:

Álvaro G López, Rahil N Valani

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Infinite-memory classical wave-particle entities, attractor-driven active particles, and the diffusionless Lorenz equations

Chaos An Interdisciplinary Journal of Nonlinear Science AIP Publishing 34:1 (2024) 013133

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Bifurcations in Inertial Focusing of a Particle Suspended in Flow Through Curved Rectangular Ducts

Springer Proceedings in Mathematics & Statistics Springer Nature 454 (2024) 667-683

Authors:

Rahil N Valani, Brendan Harding, Yvonne M Stokes

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Inertial Particle Focusing in Curved Ducts: Bifurcation and Dynamics

(2023)

Authors:

Rahil Valani, Brendan Harding

Abstract:

Particles suspended in fluid flow through a curved duct can focus to stable equilibrium positions in the duct cross-section due to the balance of two dominant forces - inertial lift force from axial flow and secondary drag force from cross-sectional vortices. Such particle focusing is exploited in various medical and industrial technologies aimed at separating particles by size. In this talk, we will present results of our numerical investigation of the dynamics of neutrally buoyant particles in fluid flow through curved ducts. We will show that rich bifurcations take place in the particle equilibria as a function of system parameters. We will offer insights on how these bifurcations in combination with particle dynamics can be exploited to separate particles of different sizes in circular and spiral ducts.

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Dr Rahil Valani

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Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation

Authors:

Unpredictable tunneling in a retarded bistable potential

Authors:

Infinite-memory classical wave-particle entities, attractor-driven active particles, and the diffusionless Lorenz equations

Bifurcations in Inertial Focusing of a Particle Suspended in Flow Through Curved Rectangular Ducts

Authors:

Inertial Particle Focusing in Curved Ducts: Bifurcation and Dynamics

Authors:

Abstract:

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Dr Rahil Valani

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Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation

Authors:

Unpredictable tunneling in a retarded bistable potential

Authors:

Infinite-memory classical wave-particle entities, attractor-driven active particles, and the diffusionless Lorenz equations

Bifurcations in Inertial Focusing of a Particle Suspended in Flow Through Curved Rectangular Ducts

Authors:

Inertial Particle Focusing in Curved Ducts: Bifurcation and Dynamics

Authors:

Abstract: