Prediction of thermal diffusion effects in laminar one-dimensional flames
Journal Article
·
· Combust. Sci. Technol.; (United States)
Because many gas-burning household appliances use laminar flames, knowledge of the physicochemical mechanisms involved in their stability, blowoff, etc., serves a useful purpose at the design level; moreover, flames in which chemical processes are dominant present excellent systems for studying the complicated chemical kinetics that play a role in any combustion system. A new technique has been developed for predicting the generally neglected Soret and Dufour flux effects in laminar, one-dimensional premixed gaseous flames. The procedure transforms the time-dependent flame equations into a form permitting their direct solution using methods utilized in the literature that solve the classical-type flame problem by neglecting the additional transport fluxes. Results computed using the transformed equations show the important role that thermal diffusion can play in accurately predicting the characteristics of hydrogen-air flames.
- Research Organization:
- Technion - Israel Institute of Technology, Haifa
- OSTI ID:
- 6163993
- Journal Information:
- Combust. Sci. Technol.; (United States), Journal Name: Combust. Sci. Technol.; (United States) Vol. 24; ISSN CBSTB
- Country of Publication:
- United States
- Language:
- English
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