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Computation of Aerodynamic Drag in the Martian Atmosphere.

Weischede, F. and Gill, E. (1996) Computation of Aerodynamic Drag in the Martian Atmosphere. DLR-Interner Bericht. 96-02, 42 S.

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Abstract

The modeling of the Martian atmospheric density for aerodynamic drag computation is discussed in the framework of the Mars 96 project. To this end the Stewart density model is described in detail comprising a critical review. Since the density signifi- cantly depends on the incident solar radiation, emphasis has been given to the modeling of 10.7cm solar flux and its impact on the exospheric temperature. Making use data from a new solar activity cycle a least-squares fit with a periodic function model has been performed. Comparing the flux forecast with the revised and original Stewart model reveals, however, that no substantial improvement with respect the original Stewart model can be achieved. For reference, a revised FORTRAN 90 implementation of the Stewart model is given in the appendix.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1997,
Title:Computation of Aerodynamic Drag in the Martian Atmosphere.
Authors:
AuthorsInstitution or Email of Authors
Weischede, F.UNSPECIFIED
Gill, E.UNSPECIFIED
Date:1996
Number of Pages:42
Status:Published
Keywords:Mars 96, Drag Acceleration on Mars Orbiters, Stewart density model, Solar flux
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Hauptabteilung Raumflugmissionen
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 05:21

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