Outer planet probe entry thermal protection. I Aerothermodynamic environment

The atmospheric entry of a meteor is quite complex, with the body losing kinetic energy both from atmospheric drag and from mass loss due to aerodynamic heating. Moreover, high pressures on the windward side of the body result in enormous compressive stresses which may exceed the yield strength of the material and cause rapid fragmentation of the meteor. While ablative mass loss is not important for extremely large objects, it must be accurately estimated to correctly predict the trajectories of objects that are several tens of meters in diameter. The current paper describes a computer model which performs calculations of shock layer conditions, accounting for the time varying temperature distribution, radiative cooling of the shocked gases, and blockage of surface heating by ablation products. Application of the model to the well-known Tunguska Event indicates that the responsible bolide was probably a carbonaceous chondrite, although a stony asteroid or a cometary body cannot be conclusively ruled out. 23,20723,208

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Viscous-Shock-Layer Solutions with Radiation and Ablation Injection for Jovian Entry

1976

Radiative Transfer and Thermal Control

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Outer planet probe entry thermal protection. I Aerothermodynamic environment

Cited by 7 publications

References 3 publications

Effects of the interaction between radiation and a disintegrating vitreous material

Effects of the interaction between radiation and a disintegrating vitreous material

An analytical model of the atmospheric entry of large meteors and its application to the Tunguska Event

Viscous-Shock-Layer Solutions with Radiation and Ablation Injection for Jovian Entry

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