Changes between Version 11 and Version 12 of u/erica/CF_spectra


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Timestamp:
01/05/15 16:48:25 (10 years ago)
Author:
Erica Kaminski
Comment:

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  • u/erica/CF_spectra

    v11 v12  
    3939(but their integrals do - by Parsevel's theorem, stating the total power is equal), yet each give power spectra with the correct units for KE, which do you choose??
    4040
    41 It seems to be intuitively you want to save the squaring for after taking the FT, since if you do it before, 'you lose information about direction'. For instance, consider the 1D case of the initial condition of colliding flows. If you square the initial condition, you just get a constant function, peaking about k=0.
     41Intuitively it seems you want to save the squaring for after taking the FT, since if you do it before, 'you lose information about direction'. For instance, consider the 1D case of the initial condition of colliding flows. If you square the initial condition, you just get a constant function, peaking about k=0.
    4242
    4343Further, since,