Shearing Box Simulations Of Circumplanetary Flow

Details Shearing Box Simulations Of Circumplanetary Flow Shearing Box Simulations Of Circumplanetary Flow

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.0908d&link_type=abstract

American Astronomical Society, AAS Meeting #212, #9.08; Bulletin of the American Astronomical Society, Vol. 40, p.529

Astronomy and Astrophysics

Astronomy

Scientific paper

We study the accretion flow from a gaseous protoplanetary disk onto an embedded protoplanet. We use a code based on FLASH with block-structured adaptive mesh refinement to achieve high resolution inside the Hill sphere and in the proximity of shocks. The code solves the local Hill equations in Cartesian and polar coordinates centered on the planet with typical resolution near the planet of 0.001 gravitational radius. A circumplanetary disk forms inside the Hill radius while spiral arms are created for the case of massive planets extending to the point where the fluid becames subsonic in our frame of reference. We find that the two-dimensional approximation gives a correct estimate of the accretion rate for the terrestrial planet simulations.

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