Changes between Version 16 and Version 17 of u/erica/SteadyStateAccretionProblemPage
- Timestamp:
- 02/25/19 14:08:33 (6 years ago)
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u/erica/SteadyStateAccretionProblemPage
v16 v17 13 13 === 128^3^, fixed grid === 14 14 15 At this resolution (dx=.03125), the critical radius (rcrit=.0158) is contained within the kernel (r_acc=.125), but below the grid scale (r_min=.027). So, the soln doesn't turn over the way it does in the above plots, at this resolution. Instead, the density and radial velocity are monotonic.15 At this resolution (dx=.03125), the critical radius (rcrit=.0158) is contained within the kernel (r_acc=.125), but below the grid scale (r_min=.027). (Note r_min is the radius of the nearest cell to the sink particle). So, the soln doesn't turn over the way it does in the above plots, at this resolution. Instead, the density and radial velocity are monotonic. 16 16 17 17 A density comparison of the new algorithm (left) vs. the Krumholz algorithm (right): … … 45 45 ==== Running at higher resolution ==== 46 46 47 128^3^ + 1 level... 47 At 128^3^ + 1 level, dx_min=0.015625, which means the critical radius (r_crit=.0158) is slightly above the grid scale (r_min=.0135) and contained within the kernel (r_acc=.0625) . (Note r_min is the radius of the nearest cell to the sink particle). 48 49 Here's a lineout of the initial density, radial velocity, and mach number of this flow: 48 50 49 51 [[Image()]] 52 53 54 With movies: