Laser-induced surface tension alteration in liquids - Further investigations

Jon P. Longtin, Kunio Hijikata, Kuniyasu Ogawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-intensity, short-pulse laser radiation incident on the free surface of an absorbing liquid results in heating that can alter the liquid surface tension, causing Marangoni convection. This flow can dominate the transport of thermal energy in the liquid. In previous work, the authors investigated laser-induced surface-tension-driven (LISTD) flows experimentally and analytically. A simple model based on a scaling analysis of the governing equations was performed that provided a reasonably good estimate of the measured flow associated with LISTD flows at low intensities and large beam areas. This work expands upon the previous work by performing a numerical simulation of the governing equations to obtain a more accurate description of the flow and heating associated with LISTD flows. The transport equations are solved using the SIMPLEC algorithm. The dependence on beam size and temperature increase in the liquid are investigated, with good agreement found between the numerical simulations and experimental data obtained in the previous study. The importance of natural convection and thermal conduction on the fluid-thermal transport were assessed numerically, with both found to be negligible for this liquid-laser system. Velocity and temperature profiles at the liquid surface are also presented, and it is observed that the temperature distribution and surface velocity rapidly decay after the laser pulse arrives.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Pages149-153
Number of pages5
Volume347
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Surface tension
Lasers
Liquids
Liquid lasers
Heating
Computer simulation
Laser radiation
Thermal energy
Natural convection
Laser pulses
Temperature distribution
Temperature
Fluids
Hot Temperature

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Longtin, J. P., Hijikata, K., & Ogawa, K. (1997). Laser-induced surface tension alteration in liquids - Further investigations. In American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD (Vol. 347, pp. 149-153)

Laser-induced surface tension alteration in liquids - Further investigations. / Longtin, Jon P.; Hijikata, Kunio; Ogawa, Kuniyasu.

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 347 1997. p. 149-153.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Longtin, JP, Hijikata, K & Ogawa, K 1997, Laser-induced surface tension alteration in liquids - Further investigations. in American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. vol. 347, pp. 149-153.
Longtin JP, Hijikata K, Ogawa K. Laser-induced surface tension alteration in liquids - Further investigations. In American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 347. 1997. p. 149-153
Longtin, Jon P. ; Hijikata, Kunio ; Ogawa, Kuniyasu. / Laser-induced surface tension alteration in liquids - Further investigations. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 347 1997. pp. 149-153
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