Abstract
The present study investigates the role of turbulence in generating an inhomogeneous distribution of solid particles in rarefied gases where colliding gas elements produce acoustic waves with associated temperature, pressure and density enhancements. The dominant physical interactions in the reactive, dust-forming gas flow are estimated and detailed multi-dimensional simulations of compressible fluid-dynamics including dust formation kinetics have been carried out exemplary for physical conditions typical for brown dwarf atmospheres. The dust particle density directly maps the gas density distribution. An inhomogeneous distribution of the dust results. Since the dust formation time scales are considerably smaller than the hydrodynamic time scale, the largest particles are formed at sites of the highest density. Resulting expansion waves cause a decrease of temperature which becomes essential in hot environments.
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Chang C., Patzer A. B. C., Sedlmayr E., Sülzle D., 1998, Eur. Phys. J. D 2, 57–62
Dominik C., Sedlmayr E., Gail H.-P., 1993, A&A 277, 578–594
Gail H.-P., Sedlmayr E., 1988, A&A 206, 153–168
Gauger A., Gail H.-P., Sedlmayr E., 1990, A&A 235, 345–361
Hauschildt P., Allard F., Baron E., 1999, ApJ 512, 377–385
Jeong S., Chang, Ch., Sedlmayr, E., Sülzle, D., 2000, J. Phys. B 33, 3 K.417–3430
Köhler T. M., Gail H.-P., Sedlmayr E., 1997, A&A 320, 553–567
Oppenheimer B. R., Kulkarni S. R., Matthews K., Nakajima T., 1998, ApJ 502, 932
Patzer A. B. C., Köhler T., Sedlmayr E., 1995, Planet.& Sp.Sci. 43, 1233–1239
Smiljanovski V., Moser V., Klein R., 1997, Combust. Theory Modelling I, 183–215
Tsuji T., Ohnaka K., Aoki W., 1999, A&A 520, L19–L22
Woitke P., 2000, In Diehl R., Hartmann D.Astronomy with Radioactivities163–174, MPE Report 274
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© 2001 Springer Basel AG
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Helling, C., Klein, R., Lüttke, M., Sedlmayr, E. (2001). Dust Formation in Turbulent Media. In: Freistühler, H., Warnecke, G. (eds) Hyperbolic Problems: Theory, Numerics, Applications. ISNM International Series of Numerical Mathematics, vol 141. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8372-6_5
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DOI: https://doi.org/10.1007/978-3-0348-8372-6_5
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-9538-5
Online ISBN: 978-3-0348-8372-6
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