Interfacial Pressures and Shocks in a Multiphase Flow Mix Model.

Klem, D. E.

Technical Information Center Oak Ridge Tennessee

关键词: Quantum mechanics;    Classical mechanics;    General physics;    Closures;    Kinetic energy;   

RP-ID  :  DE200515011587

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Multiphase flow models have been proposed for use in situations which have combined Rayleigh-Taylor (RTI) and Richtmyer-Meshkov (RMI) instabilities. Such an approach works poorly for the case of a heavy to light shock incidence on a developed interface. I suggest that this difficulty can be overcome by adding an additional source to the turbulence kinetic energy equation. A variety of constraints on such a source are considered. In this context it is observed that a new constraint on closures arises. This occurs because of the discontinuity within the shock responsible for the RMI. The proposed model (Shock Scattering) is shown to give useful results.