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- Katarina Gustavsson, Bernhard Mehlig
- Physical review. E, Statistical, nonlinear, and…
- 2011

We compute the distribution of relative velocities for a one-dimensional model of heavy particles suspended in a turbulent flow, quantifying the caustic contribution to the moments of relative… (More)

- Anna-Karin Tornberg, Katarina Gustavsson
- J. Comput. Physics
- 2006

In this paper, we present a numerical method designed to simulate the challenging problem of the dynamics of slender fibers immersed in an incompressible fluid. Specifically, we consider microscopic,… (More)

- Sara Zahedi, Katarina Gustavsson, Gunilla Kreiss
- J. Comput. Physics
- 2009

A new model for simulating contact line dynamics is proposed. We apply the idea of driving contact-line movement by enforcing the equilibrium contact angle at the boundary, to the conservative level… (More)

- Katarina Gustavsson, Jonas Einarsson, Bernhard Mehlig
- Physical review letters
- 2014

We analyze the tumbling of small nonspherical, axisymmetric particles in random and turbulent flows. We compute the orientational dynamics in terms of a perturbation expansion in the Kubo number, and… (More)

- Katarina Gustavsson, Fanny Berglund, Per R. Jonsson, Bernhard Mehlig
- Physical review letters
- 2016

Recent studies show that spherical motile microorganisms in turbulence subject to gravitational torques gather in down-welling regions of the turbulent flow. By analyzing a statistical model we… (More)

We have performed numerical simulations of inertial particles in random model flows in the white-noise limit (at zero Kubo number, Ku = 0) and at finite Kubo numbers. Our results for the moments of… (More)

- Katarina Gustavsson, Bernhard Mehlig
- Physical review. E, Statistical, nonlinear, and…
- 2013

In a one-dimensional model for a turbulent aerosol (inertial particles suspended in a random flow) we compute the distributions of particle-velocity gradients and the rate of caustic formation at… (More)

- Katarina Gustavsson, Bernhard Mehlig
- The European physical journal. E, Soft matter
- 2016

Abstract.Finding a quantitative description of the rate of collisions between small particles suspended in mixing flows is a long-standing problem. Here we investigate the validity of a… (More)

We consider collisions of particles advected in a fluid. As already pointed out by Smoluchowski (1917 Z. Phys. Chem. 92 129–68), macroscopic motion of the fluid can significantly enhance the… (More)

- Katarina Gustavsson, Bernhard Mehlig, Michael Wilkinson, Ville Uski
- Physical review letters
- 2008

We discuss the relative speeds DeltaV of inertial particles suspended in a highly turbulent gas when the Stokes number, a dimensionless measure of their inertia, is large. We identify a mechanism… (More)