- Author
-
Manzello, S. L.
|
Yozgatligil, A.
|
Choi, M. Y.
- Title
- Experimental Investigation of Sootshell Formation in Microgravity Droplet Combustion.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
Drexel Univ., Philadelphia, PA
- Journal
-
International Journal of Heat and Mass Transfer,
Vol. 47,
No. 24,
5381-5385,
November 2004
- Keywords
-
soot
|
microgravity
|
combustion
|
flame fronts
|
experiments
|
soot formation
|
droplets
- Identifiers
- thermophoresis; droplet burning; soot transport in microgravity droplet combustion; mechanism of sootshell formation, from initiation near the flame and transport of the soot toward the sootshell
- Abstract
- Spherically symmetric droplet combustion experiments were performed at the NASA Glenn Research Center (GRC) 2.2 second drop tower in Cleveland, OH in an effort to better understand the mechanism leading to sootshell formation. Rapid insertion of a blunt plunger was used to remove the symmetric sootshell that formed during the period of quasi-steady burning. This allowed for the observation of sootshell re-formation. Soot particles were formed near the flame front and migrated towards the droplet to ultimately reside at the sootshell location. These experiments helped to bring about a better understanding of soot transport in microgravity droplet combustion.