Soot volume fraction maps for normal and reduced gravity laminar acetylene jet diffusion flames
- NASA Lewis Research Center, Cleveland, OH (United States)
- Wayne State Univ., Detroit, MI (United States). Mechanical Engineering Dept.
The study of soot particulate distribution inside gas jet diffusion flames is important to the understanding of fundamental soot particle and thermal radiative transport processes, as well as providing findings relevant to spacecraft fire safety, soot emissions, and radiant heat loads for combustors used in air-breathing propulsion systems. Compared to those under normal gravity (1-g) conditions, the elimination of buoyancy-induced flows is expected to significantly change the flow field in microgravity (0 g) flames, resulting in taller and wider flames with longer particle residence times. Work by Bahadori and Edelman demonstrate many previously unreported qualitative and semi-quantitative results, including flame shape and radiation, for sooting laminar gas jet diffusion flames. Work by Ku et al. report soot aggregate size and morphology analyses, and data and model predictions of soot volume fraction maps for various gas jet diffusion flames. In this study, the authors present the first 1-g and 0-g comparisons of soot volume fraction maps for laminar acetylene and nitrogen-diluted acetylene jet diffusion flames.
- OSTI ID:
- 445618
- Journal Information:
- Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 1-2 Vol. 108; ISSN 0010-2180; ISSN CBFMAO
- Country of Publication:
- United States
- Language:
- English
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