| タイトル | Prediction and Validation of Mars Pathfinder Hypersonic Aerodynamic Data Base |
| 本文（外部サイト） | http://hdl.handle.net/2060/20040090463 |
| 著者（英） | Gnoffo, Peter A.; Braun, Robert D.; Mitcheltree, Robert A.; Engelund, Walter C.; Powell, Richard W.; Weilmuenster, K. James |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1998-01-01 |
| 言語 | eng |
| 内容記述 | Postflight analysis of the Mars Pathfinder hypersonic, continuum aerodynamic data base is presented. Measured data include accelerations along the body axis and axis normal directions. Comparisons of preflight simulation and measurements show good agreement. The prediction of two static instabilities associated with movement of the sonic line from the shoulder to the nose and back was confirmed by measured normal accelerations. Reconstruction of atmospheric density during entry has an uncertainty directly proportional to the uncertainty in the predicted axial coefficient. The sensitivity of the moment coefficient to freestream density, kinetic models and center-of-gravity location are examined to provide additional consistency checks of the simulation with flight data. The atmospheric density as derived from axial coefficient and measured axial accelerations falls within the range required for sonic line shift and static stability transition as independently determined from normal accelerations. |
| NASA分類 | Spacecraft Design, Testing and Performance |
| レポートNO | AIAA Paper98-2445 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/88424 |
