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Characteristics of Impinging Diesel Spray on the Heated Flat Wall in High Temperature and High Pressure Environments
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 Title & Authors
Characteristics of Impinging Diesel Spray on the Heated Flat Wall in High Temperature and High Pressure Environments
Im, Gyeong-Hun; Lee, Bong-Su; Kim, Jong-Hyeon; Gu, Ja-Ye;
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 Abstract
Characteristics of a diesel spray impingement with the variation of ambient temperature, wall temperature and ambient pressure were investigated through shadowgraphy method by using high speed camera. The radial penetration of spray was increased with ambient temperature and wall temperature. It is resulted from the decrease of ambient gas density caused by the increase of temperature. The height of spray was also increased with ambient temperature and wall temperature, because the height of stagnate region is noticeably increased, although height of wall jet vortex is decreased. At the same ambient pressure, the area ratio of impinging spray of room temperature environment to high temperature environment was increased, as the temperature difference between room temperature and high temperature increases. And the increment of area ratio was higher at low ambient pressure than high ambient pressure.
 Keywords
Diesel Spray Impingement;Shadowgraphy;Radial Penetration;Height of Spray;Stagnate Region;
 Language
Korean
 Cited by
 References
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