Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1016/j.ijmultiphaseflow.2020.103273
Ключевые слова: Aerodynamics; Drop breakup; Grid computing; Large eddy simulation; Numerical methods; Phase interfaces; Computational studies; High-speed visualization; Incident shock waves; Integral characteristics; Mass entrainment; Mathematical simulations; Numerical approaches; Volume of fluid method; Shock waves
Аннотация: The work is devoted to experimental and computational studies of the behavior of water drop in a flow behind incident shock wave and verification of calculations on this basis. High-Speed visualization of the water drop interaction with the flow behind incident shock wave was obtained in the experiments at shock wave Mach numbers MПоказать полностьюs=1.109–1.34 and Weber numbers We = 208–2260. Conditions consistent with the experiments are simulated in the calculations. The numerical approach is based on the use of the volume of fluid (VOF) method to resolve the phase interface, large eddy simulation (LES) model to describe turbulence, and adapted dynamic grid technology. The structure of the flow near and in the wake of a drop, the features of the flow around a drop, the type of the shape evolution, and the character of the mass entrainment were studied. Comparison of simulation results with experimental data indicates good agreement with the main integral characteristics of the process, i.e. morphology, dynamics, and induction time of droplet breakup. © 2020
Журнал: International Journal of Multiphase Flow
Выпуск журнала: Vol. 127
Номера страниц: 103273
ISSN журнала: 03019322
Издатель: Elsevier Ltd.