Abstract
In this paper, some of the preparatory experiments of the ESA sponsored space program CIMEX-1 are presented. A liquid layer of variable thickness is subject to a flow of inert gas. The non-uniform evaporation induced by the gas flow creates a temperature gradient parallel to the interface triggering in that way thermocapillary convection. The combined action of evaporation, thermocapillarity and gravity has been not completely clarified both theoretically and experimentally. The experiment presented in this work concerns a liquid layer of ethanol of 2.2 mm thickness in presence of a mass flow of Nitrogen whose intensity varies in the range of hundreds of milliliter per minute. The experiments were performed at an initial liquid temperature of 21°C. The patterns observed are strongly dependent on the flow rate of inert gas. A change in the instability patterns has been observed for a gas flow of about 1.7 l/min.
| Original language | English |
|---|---|
| Pages (from-to) | 27-29 |
| Number of pages | 3 |
| Journal | Microgravity Science and Technology |
| Volume | 19 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 1 Jan 2007 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Modelling and Simulation
- Engineering(all)
- Physics and Astronomy(all)
- Applied Mathematics
Cite this
Thermal patterns in evaporating liquid. / Iorio, Carlo S.; Kabov, Oleg A.; Legros, Jean Claude.
In: Microgravity Science and Technology, Vol. 19, No. 3-4, 01.01.2007, p. 27-29.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal patterns in evaporating liquid
AU - Iorio, Carlo S.
AU - Kabov, Oleg A.
AU - Legros, Jean Claude
PY - 2007/1/1
Y1 - 2007/1/1
N2 - In this paper, some of the preparatory experiments of the ESA sponsored space program CIMEX-1 are presented. A liquid layer of variable thickness is subject to a flow of inert gas. The non-uniform evaporation induced by the gas flow creates a temperature gradient parallel to the interface triggering in that way thermocapillary convection. The combined action of evaporation, thermocapillarity and gravity has been not completely clarified both theoretically and experimentally. The experiment presented in this work concerns a liquid layer of ethanol of 2.2 mm thickness in presence of a mass flow of Nitrogen whose intensity varies in the range of hundreds of milliliter per minute. The experiments were performed at an initial liquid temperature of 21°C. The patterns observed are strongly dependent on the flow rate of inert gas. A change in the instability patterns has been observed for a gas flow of about 1.7 l/min.
AB - In this paper, some of the preparatory experiments of the ESA sponsored space program CIMEX-1 are presented. A liquid layer of variable thickness is subject to a flow of inert gas. The non-uniform evaporation induced by the gas flow creates a temperature gradient parallel to the interface triggering in that way thermocapillary convection. The combined action of evaporation, thermocapillarity and gravity has been not completely clarified both theoretically and experimentally. The experiment presented in this work concerns a liquid layer of ethanol of 2.2 mm thickness in presence of a mass flow of Nitrogen whose intensity varies in the range of hundreds of milliliter per minute. The experiments were performed at an initial liquid temperature of 21°C. The patterns observed are strongly dependent on the flow rate of inert gas. A change in the instability patterns has been observed for a gas flow of about 1.7 l/min.
UR - http://www.scopus.com/inward/record.url?scp=36549023946&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36549023946&partnerID=8YFLogxK
U2 - 10.1007/BF02915741
DO - 10.1007/BF02915741
M3 - Article
VL - 19
SP - 27
EP - 29
JO - Microgravity Science and Technology
JF - Microgravity Science and Technology
SN - 0938-0108
IS - 3-4
ER -