chapensk: Estimation of Gas Properties from the Lennard-Jones Potential

Estimation of gas transport properties (viscosity, diffusion, thermal conductivity) using Chapman-Enskok theory (Chapman and Larmor 1918, <doi:10.1098/rsta.1918.0005>) and of the second virial coefficient (Vargas et al. 2001, <doi:10.1016/s0378-4371(00)00362-9>) using the Lennard-Jones (12-6) potential. Up to the third order correction is taken into account for viscosity and thermal conductivity. It is also possible to calculate the binary diffusion coefficients of polar and non-polar gases in non-polar bath gases (Brown et al. 2011, <doi:10.1016/j.pecs.2010.12.001>). 16 collision integrals are calculated with four digit accuracy over the reduced temperature range [0.3, 400] using an interpolation function of Kim and Monroe (2014, <doi:10.1016/j.jcp.2014.05.018>).

Version: 0.4
Depends: R (≥ 2.12.0), methods, Bessel
Published: 2025-07-29
DOI: 10.32614/CRAN.package.chapensk
Author: Stefan Langenberg ORCID iD [aut, cre]
Maintainer: Stefan Langenberg <langenberg at uni-bonn.de>
BugReports: https://github.com/langenbergstefan/chapensk/issues
License: GPL-3
URL: https://github.com/langenbergstefan/chapensk
NeedsCompilation: no
Materials: README
CRAN checks: chapensk results

Documentation:

Reference manual: chapensk.html , chapensk.pdf

Downloads:

Package source: chapensk_0.4.tar.gz
Windows binaries: r-devel: not available, r-release: chapensk_0.4.zip, r-oldrel: chapensk_0.4.zip
macOS binaries: r-release (arm64): chapensk_0.4.tgz, r-oldrel (arm64): chapensk_0.4.tgz, r-release (x86_64): chapensk_0.4.tgz, r-oldrel (x86_64): chapensk_0.4.tgz

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