auxi.tools.materialphysicalproperties.polynomial module

This module provides tools for calculating material physical properties.

class auxi.tools.materialphysicalproperties.polynomial.PolynomialModelT(material, proprty, symbol, display_symbol, units, references, datasets, coeffs)

Bases: auxi.tools.materialphysicalproperties.core.Model

A model that uses polynomial fits on experimental data to describe the variation of a specific material physical property as a function of temperature.

param material:the name of the material being described, e.g. “Air” param proprty:the name of the property being described, e.g. “density” param symbol:the symbol of the property being described, e.g. “rho” param display symbol:  the display symbol of the property being described, e.g. “

ho”

param units:the units used to express the property, e.g. “kg/m3” param references:  a list of literature references on which this model implementation is based, e.g. [‘lienhard2015’, ‘smith2006’] param datasets:a list of data sets on which this model implementation is based, e.g. [‘dataset-air-lienhard2015.csv’] param coeffs:polynomial coefficients sorted from highest to lowest power

calculate(**state)

Calculate the material physical property at the specified temperature in the units specified by the object’s ‘property_units’ property.

Parameters:T – [K] temperature Returns:physical property value

create(dataset, symbol, degree)

Create a model object from the data set for the property specified by the supplied symbol, using the specified polynomial degree.

Parameters:

• dataset – a DataSet object
• symbol – the symbol of the property to be described, e.g. ‘rho’
• degree – the polynomial degree to use

Returns:

a new PolynomialModelT object

plot(dataset, path, show=False)