fluidsim.base.output.increments

Increments

Provides:

class fluidsim.base.output.increments.Increments(output)

Bases: SpecificOutput

Handles the saving of pdf of increments.

_tag = 'increments'

_name_file = 'increments.h5'

static _complete_params_with_default(params)

_init_online_plot()

_online_plot_saving(dict_results, key='rot')

online plot on pdf

compute()

compute the values at one time.

compute_values_inc(valmin, valmax)

load()

load the saved pdf and return a dictionary.

plot(tmin=0, tmax=None, delta_t=2, order=2, yscale='log')

Plot some structure functions.

strfunc_from_pdf(pdf, values, order, absolute=False)

Following the identity:

\[E(x^m) = \int_{-\inf}^{\inf} x^m p(x) dx\]

In this case, replace x with increments,

\[\delta u(r, x) = u(x+r) - u(x)\]

Thus, for a every value of r the mean of increments are computed as follows:

\[<(\delta u)^m> = \int_{-\inf}^{\inf} (\delta u)^m p(\delta u) d(\delta u) = d(\delta u) \Sigma (\delta u)^m p(\delta u)\]

load_pdf_from_file(tmin=0, tmax=None, key_var='ux', irx_to_plot=None)

Plot some pdf.

plot_pdf(tmin=0, tmax=None, key_var='ux', order=0, nb_rx_to_plot=5)

Functions

strfunc_from_pdf(rxs, pdf, values, order[, ...])

Compute structure function of specified order from pdf

Classes

Increments(output)

Handles the saving of pdf of increments.