Characterisation of SPH noise in simulations of protoplanetary discs

Details Characterisation of SPH noise in simulations of protoplanetary discs Characterisation of SPH noise in simulations of protoplanetary discs

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..449a&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Astronomy and Astrophysics

Astrophysics

Protoplanetary Discs, Turbulence, Numerical Simulations

Scientific paper

We have started a characterization of the noise in SPH (Smoothed Particle Hydrodynamics) simulations of the gas component of protoplanetary discs. The main goal is the determination of the properties of the fluctuating velocity field in order to compare them to those proper both to standard incompressible Kolmogorov turbulence and to compressible supersonic turbulence. A controlled fluctuating velocity field with turbulence-like properties is very important in the context of the theories of pre-planetesimal formation where the dynamics of dust, driven by that of the gas, is the crucial point.

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