Effect of magnetic field on current colection on bare tether in LEO

Onishi, Tatsuo and Martínez-Sánchez, Manuel and Cooke, D.L. and Sanmartín Losada, Juan Ramón (2002). Effect of magnetic field on current colection on bare tether in LEO. In: "38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit", 7 - 10 Jul 2002, Indianapolis, Indiana. ISBN 978-1-62410-115-1.

Description

Title: Effect of magnetic field on current colection on bare tether in LEO
Author/s:
  • Onishi, Tatsuo
  • Martínez-Sánchez, Manuel
  • Cooke, D.L.
  • Sanmartín Losada, Juan Ramón
Item Type: Presentation at Congress or Conference (Article)
Event Title: 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Event Dates: 7 - 10 Jul 2002
Event Location: Indianapolis, Indiana
Title of Book: AIAA/ASME/SAE/ASEE 38th Joint Propulsion Conference and Exhibit: : proceedings of the conference
Date: 2002
ISBN: 978-1-62410-115-1
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An eiectrodynamic Tether is a long thin conductive string deployed from a spacecraft. A part of the ED tether near one end, which is rendered positive by the Electromotive force (EMF)along the tether, collects electrons from the ambient plasma. In the frame of reference moving with theter, ions flow toward the tether, get deflected near the tether by its high positive potential and create a wake. Due to the asymmetry of plasma distribution and the weak but significant Geomagnetic field, the conventional probe theory becomes almost inapplicable. Computational work for the prediction of current collection is thus necessiated.. In this paper, we analyze effects of magnetic field on velocity distribution funtion at a point that is far from the tether, and discuss a new way to treat electrons at computational boundary. Three cases with different magnetic field are simulated and compiled so as to provide a part of the pre-flight prediction of the space experiment by NASA ProSEDS, which is planned September 2002.

More information

Item ID: 30696
DC Identifier: http://oa.upm.es/30696/
OAI Identifier: oai:oa.upm.es:30696
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 06 Aug 2014 16:55
Last Modified: 01 Oct 2014 10:52
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