TY - GEN
T1 - Open electric propulsion with an application to thermionic orificed hollow cathodes
AU - Taunay, Pierre Yves C.R.
AU - Wordingham, Christopher J.
AU - Choueiri, Edgar Y.
N1 - Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2020
Y1 - 2020
N2 - The concept of open data and software for electric propulsion is discussed and exemplified by an open database that contains over 40 years of thermionic orificed hollow cathode experimental data. Because scaling laws for electric propulsion devices must be verified over a wide range of operating conditions, access to data is critical. Examples of statistical analysis that can be performed with the dataset and resulting physical insights are presented. The empirical analysis conducted suggests that the ratio of total to magnetic pressure inside hollow cathodes depends on at most two other non-dimensional parameters and that the value of 3.7 Torr-cm for the total pressure-insert diameter product is likely a sufficient condition for nominal cathode operation. Solutions to increase the sharing of data and software in the electric propulsion community are suggested.
AB - The concept of open data and software for electric propulsion is discussed and exemplified by an open database that contains over 40 years of thermionic orificed hollow cathode experimental data. Because scaling laws for electric propulsion devices must be verified over a wide range of operating conditions, access to data is critical. Examples of statistical analysis that can be performed with the dataset and resulting physical insights are presented. The empirical analysis conducted suggests that the ratio of total to magnetic pressure inside hollow cathodes depends on at most two other non-dimensional parameters and that the value of 3.7 Torr-cm for the total pressure-insert diameter product is likely a sufficient condition for nominal cathode operation. Solutions to increase the sharing of data and software in the electric propulsion community are suggested.
UR - http://www.scopus.com/inward/record.url?scp=85091283974&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85091283974&partnerID=8YFLogxK
U2 - 10.2514/6.2020-3638
DO - 10.2514/6.2020-3638
M3 - Conference contribution
AN - SCOPUS:85091283974
SN - 9781624106026
T3 - AIAA Propulsion and Energy 2020 Forum
SP - 1
EP - 10
BT - AIAA Propulsion and Energy 2020 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Propulsion and Energy 2020 Forum
Y2 - 24 August 2020 through 28 August 2020
ER -