Changes between Version 16 and Version 17 of u/erica/SteadyStateAccretionProblemPage


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Timestamp:
02/25/19 14:08:33 (6 years ago)
Author:
Erica Kaminski
Comment:

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  • u/erica/SteadyStateAccretionProblemPage

    v16 v17  
    1313=== 128^3^, fixed grid ===
    1414
    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.
     15At 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.
    1616
    1717A density comparison of the new algorithm (left) vs. the Krumholz algorithm (right):
     
    4545==== Running at higher resolution ====
    4646
    47 128^3^ + 1 level...
     47At 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
     49Here's a lineout of the initial density, radial velocity, and mach number of this flow:
    4850
    4951[[Image()]]
     52
     53
     54With movies: