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http://dx.doi.org/10.3795/KSME-B.2004.28.12.1494

The Effect of the Collision Process Between Molecules on the Rates of Thermal Relaxation of the Translational-Rotational-Vibrational Energy Exchange  

Heo, Joong-Sik (한국기기유화시험연구단 연구개발팀)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.12, 2004 , pp. 1494-1500 More about this Journal
Abstract
A zero-dimensional direct simulation Monte Carlo(DSMC) model is developed for simulating diatomic gas including vibrational kinetics. The method is applied to the simulation of two systems: vibrational relaxation of a simple harmonic oscillator and translational-rotational-vibrational energy exchange process under heating and cooling. In the present DSMC method, the variable hard sphere molecular model and no time counter technique are used to simulate the molecular collision kinetics. For simulation of diatomic gas flows, the Borgnakke-Larsen phenomenological model is adopted to redistribute the translational and internal energies.
Keywords
Thermal Relaxation Rates; Direct Simulation Monte Calro Method; Double Relaxation; Number of Degrees of Freedom; Simple Harmonic Oscillator;
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