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Vaporization of irradiated droplets

 

作者: R. L. Armstrong,   P. J. O’Rourke,   A. Zardecki,  

 

期刊: Physics of Fluids(00319171)  (AIP Available online 1986)
卷期: Volume 29, issue 11  

页码: 3573-3581

 

ISSN:0031-9171

 

年代: 1986

 

DOI:10.1063/1.865783

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The vaporization of a spherically symmetric liquid droplet subject to a high‐intensity laser flux is investigated on the basis of a hydrodynamic description of the system composed of the vapor and ambient gas. In the limit of the convective vaporization, the boundary conditions at the fluid–gas interface are formulated by using the notion of a Knudsen layer in which translational equilibrium is established. This leads to approximate jump conditions at the interface. For homogeneous energy deposition, the hydrodynamic equations are solved numerically with the aid of the CON1D computer code (‘‘CON1D: A computer program for calculating spherically symmetric droplet combustion,’’ Los Alamos National Laboratory Report No. LA‐10269‐MS, December, 1984), based on the implict continuous–fluid Eulerian (ICE) [J. Comput. Phys.8, 197 (1971)] and arbitrary Lagrangian–Eulerian (ALE) [J. Comput. Phys.14, 1227 (1974)] numerical mehtods. The solutions exhibit the existence of two shock waves propagating in opposite directions with respect to the contact discontinuity surface that separates the ambient gas and vapor.

 

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