Numerical and experimental analysis of spallation phenomena

Alexandre Martin, Sean C.C. Bailey, Francesco Panerai, Raghava S.C. Davuluri, Huaibao Zhang, Alexander R. Vazsonyi, Zachary S. Lippay, Nagi N. Mansour, Jennifer A. Inman, Brett F. Bathel, Scott C. Splinter, Paul M. Danehy

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The spallation phenomenon was studied through numerical analysis using a coupled Lagrangian particle tracking code and a hypersonic aerothermodynamics computational fluid dynamics solver. The results show that carbon emission from spalled particles results in a significant modification of the gas composition of the post-shock layer. Results from a test campaign at the NASA Langley HYMETS facility are presented. Using an automated image processing of short exposure images, two-dimensional velocity vectors of the spalled particles were calculated. In a 30-s test at 100 W/cm2 of cold-wall heat flux, more than 722 particles were detected, with an average velocity of 110 m/s.

Original languageEnglish
Pages (from-to)229-236
Number of pages8
JournalCEAS Space Journal
Volume8
Issue number4
DOIs
StatePublished - Dec 1 2016

Bibliographical note

Publisher Copyright:
© 2016, CEAS (outside the USA).

Keywords

  • Ablation
  • Arcjet
  • Spallation
  • Thermal protection system

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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