Internal structure of LSD wave based on a 1-D laser‑induced discharge model: Comparison between numerical simulation and experiment

Joseph A. Ofosu, Toru Shimano, Hiroyuki Koizumi, Rei Kawashima, Kohei Matsi, Kimiya Komurasaki, Kohei Shimamura

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

Abstract

Repetitively pulsed (RP) laser propulsion is one of the key beamed energy propulsion (BEP) technological concepts for future space missions. The mechanism by which a laser beam source is absorbed to produce plasma in an ambient gas and to propagate an ionization wave efficiently for thrust generation is termed as laser supported detonation (LSD). Discharge-based physics is required to describe the LSD wave propagation properties as detonation theory based only on hydrodynamic relations is inadequate to do. This paper describes a computational fluid dynamics (CFD) simulation tool for laser-produced plasma fluid system based on a 1-D photoionization-induced laser discharge model. The set of equations described here consists of radiative transfer equations coupled with plasma fluid equations. The simulated results for argon gas at 1 atm, based on the model, are compared with experimentally observed results for the same gas in order to validate the model. The simulated results are shown to be consistent with experimentally obtained characteristics of the internal structure of the LSD wave.

Original languageEnglish
Title of host publication47th AIAA Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104343
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event47th AIAA Plasmadynamics and Lasers Conference, 2016 - Washington, United States
Duration: 2016 Jun 132016 Jun 17

Publication series

Name47th AIAA Plasmadynamics and Lasers Conference

Conference

Conference47th AIAA Plasmadynamics and Lasers Conference, 2016
Country/TerritoryUnited States
CityWashington
Period16/6/1316/6/17

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Internal structure of LSD wave based on a 1-D laser‑induced discharge model: Comparison between numerical simulation and experiment'. Together they form a unique fingerprint.

Cite this