Coupled Level-Set/Volume-of-Fluid Method for Simulation of Injector Atomization
Coupled Level-Set/Volume-of-Fluid Method for Simulation of Injector Atomization
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DOI：
10.2514/1.b34198
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发表时间：
2013-01
影响因子：
1.9
通讯作者：
M. Arienti;Xiaoyi Li;M. Soteriou;C. Eckett;M. Sussman;R. Jensen
中科院分区：
文献类型：
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作者：
M. Arienti;Xiaoyi Li;M. Soteriou;C. Eckett;M. Sussman;R. Jensen
本文介绍了一个多相计算流体动力学代码使用耦合的水平集/体积的流体方法来模拟液体雾化的结果。这种界面捕获方法结合了流体体积法的质量守恒性质和水平集方法的精确表面重建性质，并且它包括表面张力作为以二阶精度计算的体积力。由作者之一开发的多相代码建立在组合水平集/流体体积方法的基础上，以实现泡状流、液体破裂和相变模拟。本文提出的扩展耦合拉格朗日分散相模型与块结构的自适应网格细化欧拉网格的液滴破碎后跟踪。在一组适当的标准下，将液滴表示从欧拉离散化转移到拉格朗日离散化，可以在更大的域上模拟喷雾，并且可以在更长的物理时间内模拟喷雾，而无需…
This paper presents results of a multiphase computational fluid dynamics code using a coupled level-set/volume-of-fluid method to simulate liquid atomization. This interface-capturing approach combines the mass conservation properties of the volume-of-fluid method with the accurate surface reconstruction properties of the level-set method, and it includes surface tension as a volume force calculated with second-order accuracy. Developed by one of the authors, the multiphase code builds upon the combined level-set/volume-of-fluid methodology to enable bubbly flow, liquid breakup, and phase-change simulations. The extension presented in this paper couples a Lagrangian dispersed phase model for postbreakup tracking of droplets with block-structured adaptive mesh refinement on the Eulerian grid. Under an appropriate set of criteria, the transfer of droplets representation from the Eulerian to the Lagrangian discretization enables the simulation of sprays on larger domains and for longer physical times without...