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Interactive Combustion of Two-dimensionally Arranged Quasi-droplet Clusters Under Microgravity by Harunori Nagata; Isao Kudo; Ken’ichi Ito; Sosuke Nakamura; Yasuhiro Takeshita is a Engineering article available to read on EtoBox.

What is Interactive Combustion of Two-dimensionally Arranged Quasi-droplet Clusters Under Microgravity about?

To investigate the mutual interactions between droplets in the spray combustion, combustion of 2-dimensionally arranged quasi-droplet clusters is studied under microgravity. Quasi-droplet samples, which are solid in room temperature and change into liquid just after the ignition, consist of alcohol (propanol, butanol, pentanol, or hexanol) and polyethylene glycol with a volumetric ratio of 2:1. Seven samples sustained by glass rods form a 2-dimensional quasi-droplet cluster. Electrically heated nichrome wires ignite all samples in the cluster simultaneously. Single envelope flames that surround the clusters appeared. The results show that the sample spacing has a strong effect on the shape and movement of the flame. Sample clusters with large sample spacings come to the external group combustion through the scavenging combustion mode, whereas the small spacing clusters start directly with the external group combustion. At large sample spacings, the distance from the edge of the sample cluster to the flame (flame distance) increases to a maximum value and then decreases with time. The period of flame growth is prolonged with decreasing sample spacing and finally, at a small enough s

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Author

Harunori Nagata; Isao Kudo; Ken’ichi Ito; Sosuke Nakamura; Yasuhiro Takeshita

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0010-2180)

Published

2002

Language

EN

Field

Engineering (Physical Sciences)