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Meteor Entry and Breakup Based on Evolution of NASAs Entry Capsule Design ToolsPhysics of atmospheric entry of meteoroids was an active area of research at NASA ARC up to the early 1970s (e.g., the oft-cited work of Baldwin and Sheaffer). However, research in the area seems to have ended with the Apollo program, and any ties with an active international meteor physics community seem to have significantly diminished thereafter. In the decades following the 1970s, the focus of entry physics at NASA ARC has been on improvement of the math models of shock-layer physics (especially in chemical kinetics and radiation) and thermal response of ablative materials used for capsule heatshields. With the overarching objectives of understanding energy deposition into the atmosphere and fragmentation, could these modern analysis tools and processes be applied to the problem of atmospheric entry of meteoroids as well? In the presentation we will explore: (i) the physics of atmospheric entries of meteoroids using our current state-of-the-art tools and processes, (ii) the influence of shape (and shape change) on flow characteristics, and (iii) how multiple bodies interact.
Document ID
20170004915
Acquisition Source
Ames Research Center
Document Type
Presentation
Authors
Prabku, Dinesh K. (ERC, Inc. Moffett Field, CA, United States)
Saunders, D. (ERC, Inc. Moffett Field, CA, United States)
Stern, E. (ERC, Inc. Moffett Field, CA, United States)
Chen, Y.-K. (NASA Ames Research Center Moffett Field, CA, United States)
Allen, G. (ERC, Inc. Moffett Field, CA, United States)
Agrawal, P. (ERC, Inc. Moffett Field, CA, United States)
Jaffe, R. (NASA Ames Research Center Moffett Field, CA, United States)
White, S. (NASA Ames Research Center Moffett Field, CA, United States)
Tauber, M. (ERC, Inc. Moffett Field, CA, United States)
Bauschlicher, C. (NASA Ames Research Center Moffett Field, CA, United States)
Brandis, A. (ERC, Inc. Moffett Field, CA, United States)
Carlozzi, A. (San Jose State Univ. CA, United States)
Hart, K. (Georgia Inst. of Tech. Atlanta, GA, United States)
Date Acquired
June 1, 2017
Publication Date
July 7, 2015
Subject Category
Astrodynamics
Report/Patent Number
ARC-E-DAA-TN24556
Meeting Information
Meeting: International Workshop on Potentially Hazardous Asteroids Characterization, Atmospheric Entry and Risk Assessment
Location: Moffett Field, CA
Country: United States
Start Date: July 7, 2015
End Date: July 9, 2015
Sponsors: NASA Ames Research Center
Funding Number(s)
CONTRACT_GRANT: NNA10DE12C
Distribution Limits
Public
Copyright
Public Use Permitted.

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