Add NASA9 format - Githubissues

VlachosGroup / pMuTT

Python Multiscale Thermochemistry Toolbox (pMuTT)

https://vlachosgroup.github.io/pMuTT/

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Add NASA9 format #78

Closed jonlym closed 5 years ago

jonlym commented 5 years ago

Currently, pMuTT only supports the NASA 7 format. The NASA 9 format has several advantages such as more coefficients and an arbitrary number of knots for better curve fitting.

If we do implement this, fitting the polynomial to thermodynamic data should allow the user to:

specify the number of knots,
specify the location of the knots.

If the user doesn't specify these, pMuTT should determine the number of knots for a certain cross-validation error threshold.

jonlym commented 5 years ago

Reference links for NASA 9 format: https://www.grc.nasa.gov/WWW/CEAWeb/def_formats.htm https://cantera.org/science/science-species.html#the-nasa-9-coefficient-polynomial-parameterization

jonlym commented 5 years ago

Added to developer branch in commit 91c0a12

jonlym commented 5 years ago

Merged with master for version 1.2.12 in commit 6dd5bb9