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首页> 外文期刊>Journal of Fluids and Structures >Extended Vofire algorithm for fast transient fluid-structure dynamics with liquid-gas flows and interfaces
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Extended Vofire algorithm for fast transient fluid-structure dynamics with liquid-gas flows and interfaces

机译:扩展的Vofire算法,用于具有液-气流动和界面的快速瞬态流体结构动力学

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摘要

The present paper is dedicated to the simulation of liquid-gas flows with interfaces in the framework of fast transient fluid-structure dynamics. The two-fluid interface is modelled as a discontinuity surface in the fluid property. We use an anti-dissipative Finite-Volume discretization strategy for unstructured meshes in order to capture the position of the interface within a thin diffused volume. This allows to control the numerical diffusion of the artificial mixing between components and provide an accurate capture of complex interface motions. This scheme is an extension of the Vofire numerical solver. We propose specific developments in order to handle flows that involved high density ratio between liquid and gas. The resulting scheme capabilities are validated on basic examples and also tested against large scale fluid-structure test derived from the MARA 10 experiment. All simulations are performed using EUROPLEXUS fast transient dynamics software.
机译:本文致力于在快速瞬态流体结构动力学框架内模拟具有界面的液-气流动。二流体界面被建模为流体特性中的不连续表面。我们对非结构化网格使用抗耗散有限体积离散化策略,以便捕获薄扩散体积内的界面位置。这允许控制组件之间的人工混合的数值扩散,并提供对复杂界面运动的精确捕获。该方案是Vofire数值求解器的扩展。我们提出具体的发展方案,以处理涉及液体和气体之间高密度比的流量。所得方案的功能已在基本示例中进行了验证,并且还针对源自MARA 10实验的大规模流体结构测试进行了测试。所有仿真均使用EUROPLEXUS快速瞬态动力学软件进行。

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