3D SPH simulations of grain growth in protoplanetary disks

Guillaume Laibe; Jean-François Gonzalez; Laure Fouchet; Sarah T. Maddison

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arXiv · 0709.3070

3D SPH simulations of grain growth in protoplanetary disks

Guillaume Laibe·Jean-François Gonzalez·Laure Fouchet·Sarah T. Maddison

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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.

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Guillaume Laibe, Jean-François Gonzalez, Laure Fouchet, Sarah T. Maddison. 2007-09-19. 3D SPH simulations of grain growth in protoplanetary disks. https://arxiv.org/abs/0709.3070

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