An empirical approach to pressure modeling in hollow cathodes

Pierre Yves C.R. Taunay, Christopher J. Wordingham, Edgar Y. Choueiri

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

Abstract

An empirical relationship for the total pressure inside thermionic, orificed hollow cathodes is presented. The total pressure inside hollow cathodes is necessary for analytical models of the insert region and insert lifetime calculations. Based on a database of existing cathodes, an empirical relationship for the total pressure as a function of cathode operational parameters is derived using a non-dimensional power-law fit to experimental data. The proposed relationship agrees well with experimental data and provides a framework for evaluating future analytical models.

Original languageEnglish (US)
Title of host publication2018 Joint Propulsion Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105708
DOIs
StatePublished - Jan 1 2018
Event54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018 - Cincinnati, United States
Duration: Jul 9 2018Jul 11 2018

Publication series

Name2018 Joint Propulsion Conference

Conference

Conference54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018
CountryUnited States
CityCincinnati
Period7/9/187/11/18

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering

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