Two-phase SPH model based on an improved Riemann solver for water entry problems

Yang, Qiuzu; Xu, Fei; Yang, Yang; Wang, Jingyu

doi:10.1016/j.oceaneng.2020.107039

Cited by 37 publications

(11 citation statements)

References 42 publications

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“…Then the water rolls down and forms air cavity. The evolution results of 2‐D dam break obtained by the present ISPH‐FVM coupling method are agreed with those obtained by pure SPH methods 86–88 . The phase interface can be clearly captured by the present ISPH‐FVM coupling method.…”

Section: Numerical Examplessupporting

confidence: 81%

“…The measurement data obtained by the present ISPH-FVM coupling method are in good agreement with those obtained by other methods. [85][86][87][88] The comparison of the impact pressure results shows that the present ISPH-FVM coupling method can effectively predict the impact pressure value and avoid the numerical oscillation of the impact pressure solution in 2-D dam break simulation. For convergence study, the comparison of water height (H1, H2) and impact pressure (P1) with different particle/mesh resolutions are also given in Figure 28.…”

Section: Dam Break Problemmentioning

confidence: 91%

“…The evolution results of 2-D dam break obtained by the present ISPH-FVM coupling method are agreed with those obtained by pure SPH methods. [86][87][88] The phase interface can be clearly captured by the present ISPH-FVM coupling method. The comparison results of 2-D dam break evolution between the present ISPH-FVM coupling method and SPH-FVM coupling method proposed by Reference 68 are also given in Figure 25.…”

Section: Dam Break Problemmentioning

confidence: 91%

“…The 2-D dam break numerical model had been widely used to verify the numerical method for simulating multiphase flow. [84][85][86][87][88] In this section, the 2-D dam break numerical model introduced by Gao et al 85 is adopted to verify the adaptability and robustness of present ISPH-FVM coupling method. As shown in Figure 23, the problem domain is a tank with 3.22 m in length and 1.8 m in height.…”

Section: Dam Break Problemmentioning

confidence: 99%

“…Dam break is a typical two‐phase flow problem in hydrodynamic simulations, which usually involves large deformation and fracture of the phase interface. The 2‐D dam break numerical model had been widely used to verify the numerical method for simulating multiphase flow 84–88 …”

Section: Numerical Examplesmentioning

confidence: 99%

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An incompressible smoothed particle hydrodynamics‐finite volume method coupling algorithm for interface tracking of two‐phase fluid flows

Yang

2022

Numerical Methods in Fluids

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Two‐phase flow involves complex interface evolution process such as the formation, development, pulsation, and rupture of phase interfaces. Numerical simulation is one of the important means to study two‐phase flow. The tracking and reconstruction of phase interface is the focus of two‐phase flow simulation. A two‐phase flow simulation algorithm based on coupled incompressible smoothed particle hydrodynamics (ISPH) method and finite volume method (FVM) is developed in this article. In present ISPH‐FVM coupling algorithm, one phase which has smaller volume is represented by SPH particles, while the other phase is defined on the FVM grids. The coupling of ISPH and FVM is achieved through the transfer and interaction of physical parameters at the overlapping area of the SPH particles and FVM grids. The continuous medium surface force model is also introduced into the ISPH‐FVM coupling algorithm to study the effect of surface tension on the two‐phase flow. Several numerical examples of two‐phase flow are adopted to verify the effectiveness of the ISPH‐FVM coupling method.

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Section: Numerical Examplessupporting

confidence: 81%