CollisionIntegral-class: Class '"CollisionIntegral"'

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

Class "CollisionIntegral"

Description

Class for the empirical interpolation functions for 16 reduced Lennard-Jones (12-6) collision integrals in the range 0.3 <= \RTheta <= 400.
\RemphCollision integrals as function of reduced temperature \RTheta

Fields

l:

order of collision integral l

s:

order of collision integral s

coeff:

coefficients for collision integrals for order l and s, see data set coefficients_collisionintegral

A:

model parameter \RemphA

B:

model parameter \RemphB\sub1 ... B\sub6

C:

model parameter \RemphC\sub1 ... C\sub6

Methods

initialize(s, l):

Initialize reduced collision integral of order l and s

Omega(Theta):

Calculates reduced collision integral \ROmega(l,s) at reduced temperature \Theta using the empirical interpolation function

References

Kim SU, Monroe CW. High-accuracy calculations of sixteen collision integrals for Lennard-Jones (12-6) gases and their interpolation to parameterize neon, argon, and krypton. \RemphJournal of Computational Physics 2014;273:35873. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1016/j.jcp.2014.05.018")}.

Examples

O11 <- CollisionIntegral(l=1,s=1)
O11$Omega(0.3)

chapensk documentation built on June 4, 2026, 5:09 p.m.