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Dust formation in brown dwarf atmospheres under conditions of driven turbulence (2003)

Helling, Christiane ; Klein, Rupert ; Woitke, Peter ; [weitere]

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Publikationsdatum: 2014-02-26

Beschreibung: Based on the knowledge gained from direct numerical simulations which are only possible in the microscale regime, a concept of driven turbulence is presented which allows to enter the mesoscopic scale regime. Here, dust formation under stochastic hydro- and thermodynamic conditions is studied: constructively superimposed stochastic waves initiate dust formation by the creation of singular nucleation events. It, hence, results a varying mean grain size and dust density in space and time. The newly formed dust changes the thermodynamic behavior from almost isotherm to adiabatic and chemically depletes the gas phase.

Schlagwort(e): ddc:000

Sprache: Englisch

Materialart: reportzib , doc-type:preprint

Format: application/postscript

Format: application/pdf

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