Numerical simulation of the atomization process of liquid jet in a crossflow based on VOF-DPM
ZHOU Taotao
TANG Zhiquan
WANG Chen
ZHANG Yu
Abstract：In order to efficiently and accurately simulate the multi-scale atomization process of liquid jet in crossflow(LJIC)in aerospace power system,the LJIC atomization process is simulated using the discrete phase model(DPM)and coupled the volume of fluid(VOF)and DPM(VOF-DPM).The simulation results of the two models on the atomization process of LJIC are compared,and the effects of model conversion diameter and breakup model on the simulation results are investigated.The simulation results indicate that,compared with DPM,the jet penetration depth obtained by VOF-DPM is closer to the experimental results,the atomization process is more realistic and more detailed flow field information can be captured.When the model conversion diameter is smaller,there are more droplets that cannot be converted into discrete phase particles,which are still solved by VOF and block the flow causing small vortex clusters to form around them.Breakup model has little effect on the jet penetration depth and the flow field structure,but it causes the discrete phase particles to be further breakup into more and smaller particles.
Keywords：liquid jet in a crossflowatomizationVOF-DPMmodel transition diameter
Publication Date：2024-08-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：10( 1-10 )