A multi-region coupling scheme for compressible and incompressible flow solvers for two-phase flow in a numerical wave tank

Ferrer, Pedro José Martínez; Causon, D. M.; Qian, Ling; Mingham, Clive G.; Ma, Zhihua

doi:10.1016/j.compfluid.2015.11.005

Cited by 48 publications

(38 citation statements)

References 37 publications

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“…We integrate the fluid and solid mechanics solvers and the FSI coupling algorithm within our novel multi-region framework wsiFoam presented in the companion articles [30] and [31]. In [30] wsiFoam was presented as a multi-region framework to couple incompressible and compressible two-phase flow solvers.…”

Section: Numerical Implementationmentioning

confidence: 99%

“…For the sake of conciseness only the incompressible fluid solver of reference [30] is described here. This choice is also justified because compressibility effects are not important in the case studies presented in Section 3.…”

Section: Fluid Solvermentioning

confidence: 99%

“…An efficient implementation for FSI can also be achieved via multi-region coupling [30,31], which also offers the advantage of being completely transparent to parallel algorithms. Multi-region coupling applied to numerical wave tanks has demonstrated its potential to exploit HPC platforms when simulating large-scale ocean and naval engineering problems [30].…”

Section: Introductionmentioning

confidence: 99%

“…The main objective of the present work is to develop a versatile and efficient FSI method integrated on the multi-region NWT framework "wsiFoam" [30] that relies exclusively on the FVM through the opensource library OpenFOAM [32]. The present FSI framework can therefore take advantage of HPC and, because it integrates the fluid and solid solvers as well as their coupling in one single executable file similarly to [29], it is a competitive and very efficient numerical tool for the study of typical wave-structure engineering problems often found in real-world engineering problems or in laboratory experiments.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An efficient finite-volume method to study the interaction of two-phase fluid flows with elastic structures

Martínez-Ferrer

Qian

et al. 2018

Journal of Fluids and Structures

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Section: Numerical Implementationmentioning

confidence: 99%

Section: Fluid Solvermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An efficient finite-volume method to study the interaction of two-phase fluid flows with elastic structures

Martínez-Ferrer

Qian

et al. 2018

Journal of Fluids and Structures

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“…The transport equation for the temperature term is derived from the energy conservation equation, (Martínez Ferrer et al, 2016), and is calculated accordingly using equation (11) below:…”

Section: Compressible Model Governing Equationsmentioning

confidence: 99%

Analysis of Fluid Flow Impact Oscillatory Pressures With Air Entrapment at Structures

Mayon

Sabeur

Tan

et al. 2017

Int. Conf. Coastal. Eng.

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Hydrodynamic wave loading at coastal structures is a complex phenomenon to quantify. The chaotic nature of the fluid flow field as waves break against such structures has presented many challenges to Scientists and Engineers for the design of coastal defences. The provision of installations such as breakwaters to resist wave loading and protect coastal areas has evolved predominantly through empirical and experimental observations. This is due to the challenging understanding and quantification of wave impact energy transfer processes with air entrainment at these structures. This paper presents a numerical investigation on wave loading at porous formations including the effects of air entrapment. Porous morphologies generated from cubic packed spheres with varying characteristics representing a breakwater structure are incorporated into the numerical model at the impact interface and the effect on the pressure field is investigated as the wave breaks. We focus on analysing the impulse impact pressure as a surging flow front impacts a porous wall. Thereafter we investigate the multi-modal oscillatory wave impact pressure signals which result from a transient plunging breaker wave impinging upon a modelled porous coastal protective structure. The high frequency oscillatory pressure effects resulting from air entrapment are clearly observed in the simulations. A frequency domain analysis of the impact pressure responses is undertaken. We show that the structural morphology of the porous assembly influences the pressure response signal recorded during the impact event. The findings provide good confidence on the robustness of our numerical model particularly for investigating the air bubbles formation and their mechanics at impact with porous walls.

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A pressure‐based numerical scheme for compressible–incompressible two‐phase flows

Wei

Jiang

Nie

2021

Numerical Methods in Fluids

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This article presents a numerical scheme for two-phase flows consisting of compressible gas and incompressible liquid. Assuming that the gas density is determined by pressure only and that the liquid density is constant, we develop a new set of governing equations for compressible-incompressible two-phase flows, which can be seen as a simplification of the previous unified governing equations. The volume fraction of gas, velocity, and pressure are the primary variables. Given the liquid's usual leading role in the flow motion, a pressure-based method is employed to solve the equations. A fifth-order accurate weighted essentially nonoscillatory (WENO) scheme is applied to discretize the advection terms, and the tangent of hyperbola for interface capturing (THINC) scheme is utilized to capture the interface. The numerical scheme proposed is validated against the generalized Bagnold model and the free drop of a water patch in a closed tank. The results show that the scheme can tackle low Mach number compressible-incompressible two-phase flows. For the one-dimensional Bagnold model, the present numerical model achieves first-order convergence and gives better results than that based on the previous unified governing equations with the same numerical methods. In the simulation of the free drop of a water patch in a closed tank, a similar pressure curve with other reported work is given.

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A multi-region coupling scheme for compressible and incompressible flow solvers for two-phase flow in a numerical wave tank

Cited by 48 publications

References 37 publications

An efficient finite-volume method to study the interaction of two-phase fluid flows with elastic structures

An efficient finite-volume method to study the interaction of two-phase fluid flows with elastic structures

Analysis of Fluid Flow Impact Oscillatory Pressures With Air Entrapment at Structures

A pressure‐based numerical scheme for compressible–incompressible two‐phase flows

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