Changes between Version 23 and Version 24 of u/ehansen/RT


Ignore:
Timestamp:
09/14/11 12:52:31 (13 years ago)
Author:
ehansen
Comment:

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  • u/ehansen/RT

    v23 v24  
    3030
    3131Therefore, the slope of a [[latex($\log{y(t)}$)]] vs. [[latex($t$)]] plot would yield the growth rate [[latex($\gamma$)]].
     32Said plot was created and used to determine which time period would be most appropriate for calculating the growth rate.
    3233* [attachment:snapshot1.png Log(interface_position) Plot]
     34At early times (approximately t < 2.5), the simulation does not have enough resolution to measure such small changes in the interface position.  At late times (approximately t > 4.0), the interface develops irregularities because the instability is entering the nonlinear regime.  Therefore, this type of analysis only works between the two aforementioned times.
     35
     36The plots were used to get a rough idea of when to calculate the growth rate.  Bear2fix was then used to actually do the calculation directly from the data.  The data does not actually need to be plotted to find the slope of a best fit line.  Essentially, this slope (the growth rate) was calculated used the method of least squares.
    3337== Results ==