Computational modeling of localized laser energy deposition in quiescent air

Ramnath Kandala, Graham V. Candler

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

2 Scopus citations

Abstract

A model for Nd:YAG laser energy deposition in air is developed. Laser beam optics, inversebremsstrahlung absorption, plasma reflection, air breakdown chemistry and the fluid dynamics of the blast wave are modeled. The energy deposition process is simulated using this model. The effects of varying absorptivity and reflectivity on the plasma structure are studied. The simulated plasma and the detonation wave are compared with the experimental results. The CFD results are capable of capturing the main features of laser induced spark formation and the shape of the detonation wave, but the fluid dynamics that follow are not suffciently represented in quantitative terms, due to excessuve numerical dissipation.

Original languageEnglish (US)
Title of host publication33rd Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101144
DOIs
StatePublished - Jan 1 2002
Event33rd Plasmadynamics and Lasers Conference 2002 - Maui, HI, United States
Duration: May 20 2002May 23 2002

Publication series

Name33rd Plasmadynamics and Lasers Conference

Other

Other33rd Plasmadynamics and Lasers Conference 2002
CountryUnited States
CityMaui, HI
Period5/20/025/23/02

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