Changes between Version 15 and Version 16 of CollidingFlows


Ignore:
Timestamp:
07/07/11 06:04:17 (14 years ago)
Author:
Jonathan
Comment:

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  • CollidingFlows

    v15 v16  
    2424 || TEMPSCALE  ||  {{{1.00000000000000}}}||
    2525 || SCALEGRAV  ||  {{{1.287482066849589E-002}}}||
    26 
     26------------------
    2727== Results ==
    2828||  A  ||  B  ||  C  ||  D  ||
     
    9898
    9999
    100 
     100--------------
    101101== Discussion ==
    102102  All of these runs had poorly resolved cooling lengths (fractions of a cell).  The fastest growing modes were therefore at the nyquist frequency.  This is however much larger than the cooling length of the shocked layer.  I suspect that at higher resolutions the size of the condensations from the TI will much smaller and more prone to evaporation (or clump destruction) in the turbulent background flow...
     
    134134
    135135we can see that optimal parameters are somewhere around a density of 20 and a velocity of 16 km/s although we still need clumps to survive for ~ 10 cloud crushing times before collapsing...  Of course if the wind turns off then clumps will be able to survive longer and collapse.  It might be better therefore to use finite wind durations...
     136
     137
     138-------
     139== Miscellaneous ==
     140Here is an image showing the frame production rate for a 2D 1024^2^ fixed grid vs a 64^2^+4 colliding flow run.
     141
     142[[Image(times.png)]]