Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds
The study of entry and reentry dynamics for space vehicles is very important, particularly for manned vehicles and vehicles which is carry important devices and which can be used again. There are three types for entry dynamic, ballistics entry, glide entry and skip entry. The skip entry is used in...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2010-11-01
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| Series: | Iraqi Journal of Physics |
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| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/844 |
| _version_ | 1797871342823931904 |
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| author | Waleed I. Yaseen |
| author_facet | Waleed I. Yaseen |
| author_sort | Waleed I. Yaseen |
| collection | DOAJ |
| description |
The study of entry and reentry dynamics for space vehicles is very important, particularly for manned vehicles and vehicles which is carry important devices and which can be used again. There are three types for entry dynamic, ballistics entry, glide entry and skip entry. The skip entry is used in this work for describing entry dynamics and determining trajectory. The inertia coordinate system is used to derive equations of motion and determines initial condition for skip entry. The velocity and drag force for entry vehicle, where generate it during entry into earth’s atmosphere are calculated in this work. Also the deceleration during descending and determining entry angles, velocities ratio and altitude ratio have been studied. The circular velocity and super circular velocity are used in this work as initial values. From results we noted the skip entry type has longer flight time compared with other types, and the velocity vehicle is lower at high layer for earth atmosphere, where the density of air is very low. Therefore the skip entry is suitable for space shuttle during entry from space
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| first_indexed | 2024-04-10T00:41:17Z |
| format | Article |
| id | doaj.art-fe0249d397d04520ae23488a15242857 |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T00:41:17Z |
| publishDate | 2010-11-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-fe0249d397d04520ae23488a152428572023-03-14T05:49:01ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482010-11-01812Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular SpeedsWaleed I. Yaseen0Department of Physics, College of Science, University of Baghdad The study of entry and reentry dynamics for space vehicles is very important, particularly for manned vehicles and vehicles which is carry important devices and which can be used again. There are three types for entry dynamic, ballistics entry, glide entry and skip entry. The skip entry is used in this work for describing entry dynamics and determining trajectory. The inertia coordinate system is used to derive equations of motion and determines initial condition for skip entry. The velocity and drag force for entry vehicle, where generate it during entry into earth’s atmosphere are calculated in this work. Also the deceleration during descending and determining entry angles, velocities ratio and altitude ratio have been studied. The circular velocity and super circular velocity are used in this work as initial values. From results we noted the skip entry type has longer flight time compared with other types, and the velocity vehicle is lower at high layer for earth atmosphere, where the density of air is very low. Therefore the skip entry is suitable for space shuttle during entry from space https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/844Skip Entry Trajectories Space Vehicles Super Circular Speeds |
| spellingShingle | Waleed I. Yaseen Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds Iraqi Journal of Physics Skip Entry Trajectories Space Vehicles Super Circular Speeds |
| title | Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds |
| title_full | Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds |
| title_fullStr | Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds |
| title_full_unstemmed | Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds |
| title_short | Determination of Skip Entry Trajectories for Space Vehicles at Circular and Super Circular Speeds |
| title_sort | determination of skip entry trajectories for space vehicles at circular and super circular speeds |
| topic | Skip Entry Trajectories Space Vehicles Super Circular Speeds |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/844 |
| work_keys_str_mv | AT waleediyaseen determinationofskipentrytrajectoriesforspacevehiclesatcircularandsupercircularspeeds |