AAS 207th Meeting, 8-12 January 2006
Session 9 Circumstellar Disks I
Poster, Monday, 9:20am-7:00pm, January 9, 2006, Exhibit Hall

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[9.08] Hydraulic/Shock-Jumps In Protoplanetary Disks

A. C. Boley, R. H. Durisen (Indiana University)

Spiral shocks, for most protoplanetary disk conditions, create a loss of vertical force balance in the post-shock region and result in rapid expansion of the gas perpendicular to the disk midplane. This expansion has characteristics similar to hydraulic-jumps, which occur in incompressible fluids. We present a theory to describe the behavior of these hydraulic/shock-jump hybrids (hs-jumps) and then compare the theory to three-dimensional hydrodynamics simulations. We discuss the fully three-dimensional shock structures that hs-jumps produce and discuss possible consequences of hs-jumps for disk mixing, turbulence, and evolution of solids.

A. C. B. was supported in part by an Indiana Space Grant Consortium fellowship and a NASA Graduate Student Research Program fellowship; R. H. D. was supported in part by NASA grants NAGS-11964 and NNG05GN11G.

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The author(s) of this abstract have provided an email address for comments about the abstract: acboley@astro.indiana.edu

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