Simulation of warm dense matter in intense bubble collapse

Brett Tully, Nicholas Hawker, Matthew Betney, Yiannis Ventikos

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

3 Citations (Scopus)

Abstract

Previous work by the authors includes computational study of shock-bubble interaction. This work demonstrated strong compression and heating within the bubble, with gas reaching densities of order of magnitude 1 g/cc and temperatures of 10 eV. These conditions correspond to the warm dense matter regime. This paper addresses limitations of previous work through utilisation of various equations of state (EOS) appropriate for the modelling of dense plasma. This is achieved through the design and implementation of a generic interface based on tabulated EOS data. Any EOS may be utilised through the framework, requiring only knowledge of pressure and energy as functions of density and temperature. The solutions to various issues such as table interpolation, tabulated change of variables, arbitrary calculation of entropy and calculation of thermodynamic derivatives are presented. In addition, the trade-offs between CPU time, memory requirement and computational accuracy are discussed. Validation work is presented and a comparison of different EOS is also explored. The EOS used include but are not limited to the EOS for air utilised by Moss et al (1994) to study SBSL, SESAME tabulated EOS and QEOS-type formulations. Finally, conditions attained during shock-bubble interaction are re-examined.

Original languageEnglish
Title of host publicationProceedings of Meetings on Acoustics
PublisherAIP Publishing
Volume19
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventInternational Congress on Acoustics 2013: 165th Meeting of the Acoustical Society of America - Montreal, Canada
Duration: 2 Jun 20137 Jun 2013
Conference number: 21st
https://pubs.aip.org/asa/poma/issue/19/1

Publication series

NameProceedings of Meetings on Acoustics
PublisherAcoustical Society of America (ASA)
ISSN (Print)1939-800X

Conference

ConferenceInternational Congress on Acoustics 2013
Abbreviated titleICA 2013
Country/TerritoryCanada
CityMontreal
Period2/06/137/06/13
Internet address

Cite this