Problems of Diffusion in a Low Pressure Gas Stream as Related to the Polanyi Diffusion Flame (Cloud) Method.
Abstract
In anticipation of the application of the Polanyi diffusion flame (cloud) technique to the study of unimolecular reactions and energy transfer at higher temperatures, we have investigated some experimental and theoretical aspects of the time-dependent and steady-state behavior of diffusion of a reactant into a low pressure (approximately equal to torr) gas stream. A study of the diffusion of Hg vapor in N2 atmospheric gas was made. The effects of the Hg inlet nozzle configuration and the inlet gas flow rate on the diffusion process and on the atmospheric gas stream have been investigated. Monte Carlo calculations have been made to reveal the time-dependent and steady-state behavior of a species diffusing from a point source into gas streams having various velocity profiles. Some aspects of a reactive diffusing species are also treated mathematically. The present results are integrated with previous results of other investigators in order to provide an overall view of the relationship between real and model flow systems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1977
- Accession Number
- ADA044436
Entities
People
- Benton Seymour Rabinovitch
- D. G. Keil
- J. F. Burkhalter
Organizations
- University of Washington