Modeling of a high-energy laser pulse focused within an aerosol spray

John P. Barton, Pratap B. Cheekati, Dennis R. Alexander, Larry C. Liou

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

Abstract

A computer program is being developed for the theoretical analysis of the propagation of a laser pulse optically focused within an aerosol spray. The computer program can be applied, for example, to analyze laser ignition arrangements where a focused laser pulse would be used to ignite a liquid aerosol fuel spray. Laser light scattering and absorption of the individual aerosol droplets are evaluated using electromagnetic Lorenz-Mie theory. Initially, beam propagation is being modeled using a simple modified paraxial theory. Arbitrary input parameters to the computer program describing the optical/laser/aerosol spray arrangement include the liquid volume fraction, average droplet size, droplet size distribution, laser wavelength, laser pulse energy, laser pulse duration, lens focal length, beam diameter incident on the lens, and the choice of aerosol liquid and surrounding gaseous medium (through arbitrary inputted values of the thermodynamic and optical properties of the aerosol liquid and the gaseous medium). The output of the computer program includes, as a function of spatial position along the laser propagation axis within the spray, the laser pulse intensity and energy, the overall volumetric absorption of laser energy by the aerosol liquid and by the gaseous medium, and the overall average temperature rise of the aerosol liquid and of the gaseous medium.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages258-268
Number of pages11
ISBN (Print)0819410896
StatePublished - Jan 1 1993
EventLaser Applications in Combustion and Combustion Diagnostics - Los Angeles, CA, USA
Duration: Jan 19 1993Jan 20 1993

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1862
ISSN (Print)0277-786X

Other

OtherLaser Applications in Combustion and Combustion Diagnostics
CityLos Angeles, CA, USA
Period1/19/931/20/93

Fingerprint

High energy lasers
Aerosols
sprayers
Laser pulses
aerosols
pulses
lasers
Lasers
Computer program listings
Liquids
energy
liquids
computer programs
Lenses
propagation
lenses
fuel sprays
Light scattering
Light absorption
Ignition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Barton, J. P., Cheekati, P. B., Alexander, D. R., & Liou, L. C. (1993). Modeling of a high-energy laser pulse focused within an aerosol spray. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 258-268). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1862). Publ by Int Soc for Optical Engineering.

Modeling of a high-energy laser pulse focused within an aerosol spray. / Barton, John P.; Cheekati, Pratap B.; Alexander, Dennis R.; Liou, Larry C.

Proceedings of SPIE - The International Society for Optical Engineering. Publ by Int Soc for Optical Engineering, 1993. p. 258-268 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1862).

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

Barton, JP, Cheekati, PB, Alexander, DR & Liou, LC 1993, Modeling of a high-energy laser pulse focused within an aerosol spray. in Proceedings of SPIE - The International Society for Optical Engineering. Proceedings of SPIE - The International Society for Optical Engineering, vol. 1862, Publ by Int Soc for Optical Engineering, pp. 258-268, Laser Applications in Combustion and Combustion Diagnostics, Los Angeles, CA, USA, 1/19/93.
Barton JP, Cheekati PB, Alexander DR, Liou LC. Modeling of a high-energy laser pulse focused within an aerosol spray. In Proceedings of SPIE - The International Society for Optical Engineering. Publ by Int Soc for Optical Engineering. 1993. p. 258-268. (Proceedings of SPIE - The International Society for Optical Engineering).
Barton, John P. ; Cheekati, Pratap B. ; Alexander, Dennis R. ; Liou, Larry C. / Modeling of a high-energy laser pulse focused within an aerosol spray. Proceedings of SPIE - The International Society for Optical Engineering. Publ by Int Soc for Optical Engineering, 1993. pp. 258-268 (Proceedings of SPIE - The International Society for Optical Engineering).
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