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An inviscid computational study of three '07 mars lander aeroshell configurations over a mach number range of 2.3 to 4.5
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Prabhu, Ramadas K. |
| Copyright Year | 2001 |
| Description | This report documents the results of a study conducted to compute the inviscid longitudinal aerodynamic characteristics of three aeroshell configurations of the proposed '07 Mars lander. This was done in support of the activity to design a smart lander for the proposed '07 Mars mission. In addition to the three configurations with tabs designated as the shelf, the canted, and the Ames, the baseline configuration (without tab) was also studied. The unstructured grid inviscid CFD software FELISA was used, and the longitudinal aerodynamic characteristics of the four configurations were computed for Mach number of 2.3, 2.7, 3.5, and 4.5, and for an angle of attack range of -4 to 20 degrees. Wind tunnel tests had been conducted on scale models of these four configurations in the Unitary Plan Wind Tunnel, NASA Langley Research Center. Present computational results are compared with the data from these tests. Some differences are noticed between the two results, particularly at the lower Mach numbers. These differences are attributed to the pressures acting on the aft body. Most of the present computations were done on the forebody only. Additional computations were done on the full body (forebody and afterbody) for the baseline and the Shelf configurations. Results of some computations done (to simulate flight conditions) with the Mars gas option and with an effective gamma are also included. |
| File Size | 1586886 |
| Page Count | 47 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20020016710 |
| Archival Resource Key | ark:/13960/t1rg0pn3z |
| Language | English |
| Publisher Date | 2001-12-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Aeroshells Flight Conditions Supersonic Speed Computational Fluid Dynamics Scale Models Afterbodies Wind Tunnel Tests Inviscid Flow Angle of Attack Aerodynamic Characteristics Mach Number Mars Missions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
