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摘要
En 中文
Multiple fluid simulation has raised wide research interest in recent years. Despite the impressive successes of current works, simulation of scenes containing mixing or unmixing of high-density-ratio phases using particle-based discretizations still remains a challenging task. In this paper, we propose a peridynamic mixture-model theory that stably handles high-density-ratio multi-fluid simulations. With assistance of novel scalar-valued volume flow states, a particle based discretization scheme is proposed to calculate all the terms in the multi-phase Navier-Stokes equations in an integral form, We also design a novel mass updating strategy for enhancing phase mass conservation and reducing particle volume variations under high density ratio settings in multi-fluid simulations. As a result, we achieve significantly stabler simulations in mixture-model multi-fluid simulations involving mixing and unmixing of high density ratio phases. Various experiments and comparisons demonstrate the effectiveness of our approach.
Keyword:
multi-fluid
high-density-ratio
peridynamics
mass conservation
期刊
IF:
9.5
论文数:
4.7K
被引数:
3.6W
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收藏Mixture model for two-phase flows with high density ratios: A conservative and realizable SPH formulation高密度比两相流的混合模型: 保守且可实现的SPH公式.png)
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