ar X iv : a st ro - p h / 05 10 30 5 v 4 1 0 M ar 2 00 6 Accepted for publication in ApJ Hydraulic / Shock Jumps in Protoplanetary Disks
نویسندگان
چکیده
In this paper, we describe the nonlinear outcome of spiral shocks in protoplan-etary disks. 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 hybrids between shocks and hydraulic jumps (shock bores) and then compare the theory to three-dimensional hydro-dynamics simulations. We discuss the fully three-dimensional shock structures that shock bores produce and discuss possible consequences for disk mixing, turbulence , and evolution of solids.
منابع مشابه
ar X iv : a st ro - p h / 05 10 30 5 v 1 1 1 O ct 2 00 5 Hydraulic / Shock - Jumps in Protoplanetary Disks
In this paper, we describe the nonlinear outcome of spiral shocks in protoplan-etary disks. 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 pre...
متن کاملar X iv : a st ro - p h / 05 10 30 5 v 3 6 J an 2 00 6 Hydraulic / Shock - Jumps in Protoplanetary Disks
In this paper, we describe the nonlinear outcome of spiral shocks in protoplan-etary disks. 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 pre...
متن کاملar X iv : a st ro - p h / 05 10 30 5 v 2 1 2 D ec 2 00 5 Hydraulic / Shock - Jumps in Protoplanetary Disks
In this paper, we describe the nonlinear outcome of spiral shocks in protoplan-etary disks. 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 pre...
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