pdFOAM : a PIC-DSMC code for near-Earth plasma-body interactions
Capon, C.J. and Brown, M. and White, C. and Scanlon, T. and Boyce, R.R. (2017) pdFOAM : a PIC-DSMC code for near-Earth plasma-body interactions. Computers and Fluids, 149. pp. 160-171. ISSN 0045-7930 (https://doi.org/10.1016/j.compfluid.2017.03.020)
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Abstract
Understanding the interaction of the near-Earth space environment with orbiting bodies is critical, both from a design and scientific perspective. In Low Earth Orbit (LEO), the interaction between the Ionosphere and orbiting objects is well studied from a charging perspective. Not well understood is the effect of the Ionosphere on the motion of LEO objects i.e. ionospheric aerodynamics. This paper presents the implementation, validation, and verification of the hybrid electrostatic Particle-in-Cell (PIC) - Direct Simulation Monte Carlo (DSMC) code, pdFOAM, to study both the neutral and charged particle aerodynamics of LEO objects. The 2D aerodynamic interaction of a cylinder with a fixed uniform surface potential of −50 V in mesothermal O+ and H+ plasmas representative of ionospheric conditions is investigated. New insights into the role of bounded ion jets and their effect on surface forces are presented. O+ bounded ion jets are observed to cause a 4.4% increase in direct Charged Particle Drag (dCPD), while H+ ion jets produce a net reduction in H+ dCPD by 23.7% i.e. they cause a thrust force. As a result, this paper concludes the study of charged aerodynamics in LEO requires a self-consistent modelling tool, such as pdFOAM.
ORCID iDs
Capon, C.J., Brown, M., White, C., Scanlon, T. ORCID: https://orcid.org/0000-0002-6819-9277 and Boyce, R.R.;-
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Item type: Article ID code: 60352 Dates: DateEvent13 June 2017Published20 March 2017Published Online19 March 2017AcceptedSubjects: Technology > Motor vehicles. Aeronautics. Astronautics Department: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Pure Administrator Date deposited: 29 Mar 2017 09:03 Last modified: 02 Oct 2024 00:28 URI: https://strathprints.strath.ac.uk/id/eprint/60352