کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1765285 1020094 2013 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Drag coefficient modeling for grace using Direct Simulation Monte Carlo
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
Drag coefficient modeling for grace using Direct Simulation Monte Carlo
چکیده انگلیسی

Drag coefficient is a major source of uncertainty in predicting the orbit of a satellite in low Earth orbit (LEO). Computational methods like the Test Particle Monte Carlo (TPMC) and Direct Simulation Monte Carlo (DSMC) are important tools in accurately computing physical drag coefficients. However, the methods are computationally expensive and cannot be employed real time. Therefore, modeling of the physical drag coefficient is required. This work presents a technique of developing parameterized drag coefficients models using the DSMC method. The technique is validated by developing a model for the Gravity Recovery and Climate Experiment (GRACE) satellite. Results show that drag coefficients computed using the developed model for GRACE agree to within 1% with those computed using DSMC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 52, Issue 12, 15 December 2013, Pages 2035–2051
نویسندگان
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