Mathematics
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994p%26ss...42..593a&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 42, no. 8, p. 593-598
Mathematics
3
Atmospheric Heating, Earth Atmosphere, Meteorology, Micrometeoroids, Reentry Effects, Rotational States, Surface Reactions, Temperature Profiles, Zodiacal Dust, Boundary Conditions, Mathematical Models, Surface Temperature, Temperature Gradients, Two Dimensional Models
Scientific paper
The beginning height of a meteor varies by approximately 10 km depending on the rotation state of a spherical meteoroid as long as the body sustains a temperature gradient. Such gradients build up in friable stony meteoroids larger than approximately 0.1 cm and in iron meteoroids that are approximately 1 cm or larger. The height where 100 microns or smaller zodiacal dust particles ablate is nearly independent of rotation. Stony particles in the 100 microns size range ablate near 120 km while both larger and smaller meteoroids penetrate deeper. All calculations were made with a nominal speed of 30 km/s and a zenithal distance equal to zr = 0 deg. Larger meteoroids cool their surface by conduction to the interior while smaller meteoroids decelerate significantly due to their large surface area to mass ratio so that the surface receives a lower energy flux. Some micro-meteoroids smaller than approximately 10 microns may escape abalation altogether at the nominal velocity. The effect of rotation on particle temperature during atmospheric flight is significant on meteoroids larger than 0.1 cm but may be negligible on micro-meteorites that are typically 10-50 microns in diameter.
Adolfsson Lars G.
Gustafson Bo Åke Sture
No associations
LandOfFree
Effect of meteoroid rotation on atmospheric entry heating and meteor beginning height does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effect of meteoroid rotation on atmospheric entry heating and meteor beginning height, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of meteoroid rotation on atmospheric entry heating and meteor beginning height will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1238862