3D SPH simulations of grain growth in protoplanetary disks

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Title: 3D SPH simulations of grain growth in protoplanetary disks
Author(s): Laibe, Guillaume; Gonzalez, Jean-Francois; Fouchet, Laure; Maddison, Sarah T.
Abstract: We present the first results of the treatment of grain growth in our 3D, two-fluid (gas+dust) SPH code describing protoplanetary disks. We implement a scheme able to reproduce the variation of grain sizes caused by a variety of physical processes and test it with the analytical expression of grain growth given by Stepinski & Valageas (1997) in simulations of a typical T Tauri disk around a one solar mass star. The results are in agreement with a turbulent growing process and validate the method. We are now able to simulate the grain growth process in a protoplanetary disk given by a more realistic physical description, currently under development. We discuss the implications of the combined effect of grain growth and dust vertical settling and radial migration on subsequent planetesimal formation.
Publication type: Conference paper
Research centre: Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing
Source: Exoplanets: detection, formation and dynamics: proceedings of the International Astronomical Union Symposium 249, Suzhou, China, 22-26 October 2007 / Yi-Sui Sun, Sylvio Ferraz Mello and Ji-Lin Zhou (eds.), Vol. 3, no. (2008), pp. 385-388
Publication year: 2008
Keyword(s): Numerical methods; Planetary systems; Protoplanetary disks; SPH
Publisher: Cambridge University Press
ISSN: 1743-9213 (series ISSN)
ISBN: 9780521874717, 0521874718
Publisher URL: http://dx.doi.org/10.1017/S1743921308016864
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