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Synopsis
Excerpt from Equations of Flow in a Rarefied Atmosphere: June 17, 1959
The introduction of ionization opens a veritable Pandora's box of complex phenomena. To start, consider the mean-free-path which is no longer unique and does not, by itself, give a criterion for either free flow or simple continuum flow. There is a mean free-path for neutral-neutral encounters, for encounters between charged particles, and for encounters between a neutral and a charged particle. For simplicity let us ignore inelastic effects such as ionization, recombination, charge exchange, and related surface effects. We speak of free paths rather than collision times since the former are about the same size for electrons and for ions. We also choose to ignore as minor the difference between neutral-neutral and neutral-charged cross-sections. This leaves two distinct mean-free-paths, the neutral and the Coulomb. At the temperatures existing in the atmosphere, the Coulomb cross section is much larger than the neutral cross-section. This is counterbalanced by the fact that the neutral density is usually much larger than the charged particle density. The Coulomb mean free-path is always large (at least 300 meters), but the neutral mean-free-path can range from microscopic values at low altitudes to values large compared to the Coulomb mean-free-path.
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- PublisherForgotten Books
- Publication date2018
- ISBN 10 1332124844
- ISBN 13 9781332124848
- BindingPaperback
- LanguageEnglish
- Number of pages48
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Equations of Flow in a Rarefied Atmosphere: June 17, 1959 (Classic Reprint)
Print on DemandSeller: Forgotten Books, London, United Kingdom
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Paperback. Condition: New. Print on Demand. This book delves into the fascinating realm of aerodynamics, exploring the complex interplay between gases and moving objects at the boundaries of the Earth's atmosphere. The author takes readers on a journey through various flow regimes, deftly explaining the delicate balance of forces that govern the behavior of gases in these extreme conditions. From the near-frictionless realm of free molecular flow to the viscous complexities of continuum flow, the book unveils the subtle shifts in gas dynamics as the mean free pathâ"the average distance traveled by gas molecules between collisionsâ"varies. The author's meticulous analysis reveals the profound influence of the mean free path on the flow of gases around objects, showcasing how seemingly minor changes in this parameter can trigger dramatic transitions in flow patterns. This book not only provides a comprehensive understanding of rarefied atmosphere dynamics but also lays the groundwork for further exploration in this captivating field. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781332124848_0
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Equations of Flow in a Rarefied Atmosphere June 17, 1959 Classic Reprint
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781332124848
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Equations of Flow in a Rarefied Atmosphere June 17, 1959 Classic Reprint
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
Seller rating 4 out of 5 stars
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781332124848
Quantity: 15 available