Abstract
The ejection process is described gas-dynamically for the case of normal incidence ona surface by a flow of radiation. A complete equation system is written down which is solved numerically. In this situation, the symmetry of the ejection offers an opportunity to eliminate one of the variables and makes it possible to carry out the calculation over time in a two-dimensional physical space. Absorption of the radiation energy by the solid is taken into account by the introduction of a discontinuity; the gas-dynamic quantities on both sides of the discontinuity are related by conservation laws and, at zero time, by the Jouguet rule. The gas is assumed to be ideal. The results of the calculation are presented in the form of curves. Conditions at the discontinuity which replaces the region of heating adjacent to the solid are discussed.
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Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fi/iki, No. 4, pp. 127–133, July–August 1971.
The authors are grateful to O. S. Ryzhov for interest in the work and for fruitful discussions and to I. V. Nemchinov for valuable advice and observations during the course of the work.
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Gusev, N.V., Pyarnpuu, A.A. Numerical study of ejection of material from a solid surface by intense radiation. J Appl Mech Tech Phys 12, 595–600 (1971). https://doi.org/10.1007/BF00851868
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DOI: https://doi.org/10.1007/BF00851868