Peculiarities of high-temperature two-phase flow of combustion products in channels with an intentionally structured system of shock-waves

Voronetsky, A. V.; Suchkov, S. A.; Filimonov, L. A.

doi:10.1134/s0869864307020060

Cited by 7 publications

(2 citation statements)

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“…The usage of a detailed three-dimensional modeling of gas-dynamic fragmentation taking account of the effects at the interface [2,3,16,17] requires significant computational resources and complex validation of the results. However, at this stage the models used in the calculations (especially for finely dispersed liquid droplets) can give results that differ significantly (up to 50%) from the experimental ones [18][19][20][21]. In addition, performing a large number of parametric calculations requires significant computing resources which complicates the operational solution of a number of practical problems [22,23].…”

Section: Introductionmentioning

confidence: 99%

“…However, the known parametric models [11,19,20,27] have a limited ranges of application in terms of velocities, Weber and Reynolds numbers. In particular, the analysis of works [1,23] shows that the widespread cone-shaped dependence [27] for describing gas-dynamic fragmentation can give more than a twofold difference with experiment [24] for regimes with Weber numbers less than 100.…”

Section: Introductionmentioning

confidence: 99%

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Physical and Mathematical Modeling of the Interaction of Water Droplets and High-Speed Gas Flow

et al. 2021

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Present work is devoted to physical and mathematical modeling of the secondary disintegration of a liquid jet and gas-dynamic breakup of droplets in high-speed air flows. In this work the analysis of the experiments of water droplet breakup in the supersonic flow with Mach numbers up to M = 3 was carried out. The influence of shock wave presence in the flow on the intensity of droplets gas-dynamic breakup is shown. A developed empirical model is presented. It allows to predict the distribution of droplet diameters and velocities depending on the gas flow conditions, as well as the physical properties of the liquid. The effect of the Weber and Reynolds numbers on the rate of droplets gas-dynamic breakup at various Mach numbers is shown. The obtained data can be useful in the development of mathematical models for the numerical simulation of two-phase flows in the combined Lagrange-Euler formulation.

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