Development of PARISPHERE as the particle-based numerical wave flume for coastal engineering problems
Development of PARISPHERE as the particle-based numerical wave flume for coastal engineering problems
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DOI：
10.1080/21664250.2018.1560683
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发表时间：
2019-01
影响因子：
2.4
通讯作者：
N. Tsuruta;H. Gotoh;Kojiro Suzuki;H. Ikari;K. Shimosako
中科院分区：
文献类型：
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作者：
N. Tsuruta;H. Gotoh;Kojiro Suzuki;H. Ikari;K. Shimosako
本文基于不可压缩光滑粒子流体力学(ISPH)方法，提出了一种新的基于PARISPHERE程序的数值波浪水槽，并改进了计算框架，以提高数值精度和稳定性。PARISPHERE包括一个新的压力梯度模型以进一步增强，以及一个新的与离散元方法(DEM)-ISPH耦合的模型，以实现固体和液体目标之间的空间分辨率的灵活应用。此外，在框架中引入了已有的孔隙模型和冲刷模型。通过对目标驻波试验、波传播试验、破碎波试验、多孔介质溃坝问题、吃水、亲吻和翻滚(DKT)问题、两相流以及溢出海啸的冲刷过程等基准的比较，表明该方法比现有方案具有更大的优势。
ABSTRACT The paper presents a new numerical wave flume packaged as PARISPHERE code based on the Incompressible Smoothed Particle Hydrodynamics (ISPH) method with an improved framework for enhancement of the numerical accuracy and stability. PARISPHERE includes a new pressure gradient model for more enhancement and a new coupling model with Discrete Element Method (DEM)-ISPH to achieve flexible application of the spatial resolution between the solid and liquid targets. In addition, the existing porous model and scour model are introduced into the framework. Its enhancement is shown by comparing with the existing schemes through benchmarks with targeting a standing wave test, a wave propagation test, a breaking wave test, a dam break problem with a porous media, a drafting, kissing, and tumbling (DKT) problem, a two-phase flow, and a scour process by an overflowing tsunami.