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Clustering and caustics in one-dimensional models of turbulent aerosols


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Title: Clustering and caustics in one-dimensional models of turbulent aerosols
Authors: Meibohm, Jan
Issue Date: 2018
University: University of Gothenburg. Faculty of Science
Institution: Institute of Physics
Publication type: licentiate thesis
Publisher: Göteborgs universitet
Keywords: Fluid dynamics
Particle-laden flows
Turbulent aerosols
Particles in Turbulence
Preferential Concentration
Spatial Clustering
Fractals
Caustics
Inertial Particles
Stokes Law
Multiplicative Amplification
Lyapunov Exponents
Correlation Dimension
Abstract: Heavy particles suspended in turbulent fluid flows, so-called turbulent aerosols, are common in Nature and in technological applications. A prominent example is rain droplets in turbulent clouds. Due to their inertia, ensembles of aerosol particles distribute inhomogeneously over space and can develop large relative velocities at small separations. We use statistical models that mimic turbulent flow by means of Gaussian random velocity fields to describe these systems. Compared to models that ... more
ISBN: 978-91-7833-166-6
URI: http://hdl.handle.net/2077/57538
Appears in Collections:Licentiatavhandlingar / Institutionen för fysik

 

 

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