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العنوان
A simplified model for preliminary estimation of solar wind charging on leo satellites /
الناشر
Kirolosse Mina Georges Zaki Girgis ,
المؤلف
Kirolosse Mina Georges Zaki Girgis
هيئة الاعداد
باحث / Kirolosse Mina Georges Zaki Girgis
مشرف / Atef Omar Sherif
مشرف / Mohamed Madbouli Abd El-Rahman
مشرف / christophe Sauty
تاريخ النشر
2016
عدد الصفحات
151 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
هندسة الطيران والفضاء
تاريخ الإجازة
3/6/2017
مكان الإجازة
جامعة القاهرة - كلية الهندسة - Aerospace Engineering
الفهرس
Only 14 pages are availabe for public view

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Abstract

In this thesis, the particle charging on low earth Orbit satellites were computed due to space weather severe situations. Three linked problems were solved: solar wind-magnetosphere problem with the magnetosphere-ionosphere potential coupled boundary, F-layer of ionization of the ionosphere and spacecraft charging estimation. Results were compared to NASA community coordinated modeling center three dimensional BATS-R-US magnetosphere model and schunk ionosphere model. Having solved the three linked sub-problems, the spacecraft charging was estimated by computing the excess voltage due to the increase in solar wind speed. The excess charging results provided necessary information to satellite shielding design procedure. A secondary objective of the work was to investigate the extent to which Mathematica® software and modern GPU CUDA® technologies may be used to accelerate the solution of the developed model