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Effective Potential Energies and Transport Cross Sections for Atom-Molecule Interactions of Nitrogen and Nitrogen

Authors :
Stallcop, James R
Partridge, Harry
Levin, Eugene
Arnold, Jim
Publication Year :
2001
Publisher :
United States: NASA Center for Aerospace Information (CASI), 2001.

Abstract

The potential energy surfaces for H2-N and N2-N interactions are calculated by accurate ab initio methods and applied to determine transport data. The results confirm that an effective potential energy for accurately determining transport properties can be calculated using a single orientation. A simple method is developed to determine the dispersion coefficients of effective potential energies Effective potential energies required for O2-O collisions are determ=ined. The H2-N, N2-N, O2-H, and O2-O collision integrals are calculated and tabulated for a large range of temperatures. The theoretical values of the N2-N and O2-O diffusion coefficients compare well with measured data available at room temperature.

Subjects

Subjects :
Atomic And Molecular Physics

Details

Language :
English
Database :
NASA Technical Reports
Notes :
RTOP 725-10-61
Publication Type :
Report
Accession number :
edsnas.20010095036
Document Type :
Report