Abstract
Phenomena of a gas-in-liquid compound drop hitting a flat plate with a temperature greater than the Leidenfrost temperature were experimentally observed with a high speed video camera. The collision phenomena were found to depend strongly on the Weber number as well as the relative size and position of the gas core within the compound drop. For a gas core of diameter greater than half the compound drop diameter, the collision created a central jet which would penetrate the gas core to form a donut-shaped bubble if the gas core was near the bottom. If the gas core was near the top, the whole process took much longer dimensionless time to complete and the gas core may rupture before it was penetrated by the central jet. A distinct feature of the gas-in-liquid compound drop collision was the relatively large amount of liquid that was left near the center (the contact point). In the range of Weber number studied, the spread of the liquid on the hot plate produced a crown disintegration.
| Original language | English |
|---|---|
| Publication status | Published - 2009 Jan 1 |
| Event | 7th Asia-Pacific Conference on Combustion, ASPACC 2009 - Taipei, Taiwan Duration: 2009 May 24 → 2009 May 27 |
Conference
| Conference | 7th Asia-Pacific Conference on Combustion, ASPACC 2009 |
|---|---|
| Country | Taiwan |
| City | Taipei |
| Period | 09-05-24 → 09-05-27 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Fuel Technology
- Chemical Engineering(all)
Cite this
}
Impingement of a gas-in-liquid compound drop on a heated flat plate. / Chang, Ku Nieng; Chen, Rong Horng; Pu, Jen Yung; Lin, Ta-Hui.
2009. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.Research output: Contribution to conference › Paper
TY - CONF
T1 - Impingement of a gas-in-liquid compound drop on a heated flat plate
AU - Chang, Ku Nieng
AU - Chen, Rong Horng
AU - Pu, Jen Yung
AU - Lin, Ta-Hui
PY - 2009/1/1
Y1 - 2009/1/1
N2 - Phenomena of a gas-in-liquid compound drop hitting a flat plate with a temperature greater than the Leidenfrost temperature were experimentally observed with a high speed video camera. The collision phenomena were found to depend strongly on the Weber number as well as the relative size and position of the gas core within the compound drop. For a gas core of diameter greater than half the compound drop diameter, the collision created a central jet which would penetrate the gas core to form a donut-shaped bubble if the gas core was near the bottom. If the gas core was near the top, the whole process took much longer dimensionless time to complete and the gas core may rupture before it was penetrated by the central jet. A distinct feature of the gas-in-liquid compound drop collision was the relatively large amount of liquid that was left near the center (the contact point). In the range of Weber number studied, the spread of the liquid on the hot plate produced a crown disintegration.
AB - Phenomena of a gas-in-liquid compound drop hitting a flat plate with a temperature greater than the Leidenfrost temperature were experimentally observed with a high speed video camera. The collision phenomena were found to depend strongly on the Weber number as well as the relative size and position of the gas core within the compound drop. For a gas core of diameter greater than half the compound drop diameter, the collision created a central jet which would penetrate the gas core to form a donut-shaped bubble if the gas core was near the bottom. If the gas core was near the top, the whole process took much longer dimensionless time to complete and the gas core may rupture before it was penetrated by the central jet. A distinct feature of the gas-in-liquid compound drop collision was the relatively large amount of liquid that was left near the center (the contact point). In the range of Weber number studied, the spread of the liquid on the hot plate produced a crown disintegration.
UR - http://www.scopus.com/inward/record.url?scp=85071580971&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071580971&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:85071580971
ER -