A novel coupled level set and volume of fluid method for sharp interface capturing on 3D tetrahedral grids

Lv, Xuebin; Zou, Qingping; Zhao, Yong; Reeve, Dominic E.

doi:10.1016/j.jcp.2009.12.005

Cited by 58 publications

(36 citation statements)

References 59 publications

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“…One could also consider using automatic grid refinement to resolve the interface, as well as smaller bubbles and their collapse, better. However, all of these methods would likely be associated with an increased computational effort [24,70,71].…”

Section: Discussionmentioning

confidence: 99%

Characterisation of sheet cavity noise of a hydrofoil using the Ffowcs Williams–Hawkings acoustic analogy

2016

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Concerns about pollution of the marine environment with ship-induced noise and the scarcity of available numerical methods have recently stimulated significant amounts of research in hydroacoustic modelling. In this work, Large Eddy Simulation (LES) is used with Schnerr-Sauer mass-transfer cavitation model and a porous Ffowcs WilliamsHawkings (FW-H) acoustic analogy in order to simulate sheet cavitation on a NACA0009 hydrofoil. The aim is to investigate how well the proposed method captures the dominant noise sources associated with periodic sheet cavitation. The study further focuses on practical aspects, such as the importance of the non-linear FW-H term and convergence of the acoustic solution depending on the choice of the integration surface. This is done by correlating the radiated noise with integral and local flow quantities, such as cavity volume, lift coefficient and local vapour content. A key finding of the study is that the simulation framework is capable of correctly capturing the monopole nature of the sound generated by an oscillating cavity sheet. Results indicate that the numerical method is incapable of accurately resolving the flow during the final collapse stages of smaller cavity clouds, mainly due to mesh density limitations and the use of an incompressible flow assumption. Lack of small-scale bubble structures also causes the high-frequency range of the noise spectra to be under-predicted. Despite certain limitations the presented method offers a significant insight into the nature of cavitation-dominated noise and allows for some of the dominant sound generating mechanisms to be categorised.

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Section: Discussionmentioning

confidence: 99%

Characterisation of sheet cavity noise of a hydrofoil using the Ffowcs Williams–Hawkings acoustic analogy

2016

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“…For sharp interface models the coupling of LS and PLIC-VOF techniques into the CLSVOF method became very popular (Sussman and Puckett 2000;Son and Hur 2002;Sussman 2003;van der Pijl et al 2005;Yang et al 2006;Tong and Wang 2007;Sussman et al 2007;Coyajee and Boersma 2009;Wang et al 2009a;Lv et al 2010;Sun and Tao 2010). The main motivation for this coupling is to combine the better mass conservation properties of the VOF method with the more accurate computation of interface normal vectors and interface curvature of the LS method.…”

Section: Hybrid Methodsmentioning

confidence: 99%

“…is obtained. For this task, analytical relations are available for orthogonal hexahedral (Scardovelli and Zaleski 2000), triangular (Yang et al 2006) and tetrahedral grids (Lv et al 2010). …”

Section: Description Of the Interface Evolutionmentioning

confidence: 99%

Numerical modeling of multiphase flows in microfluidics and micro process engineering: a review of methods and applications

Wörner

2012

Microfluid Nanofluid

370

197

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This article presents a comprehensive review of numerical methods and models for interface resolving simulations of multiphase flows in microfluidics and micro process engineering. The focus of the paper is on continuum methods where it covers the three common approaches in the sharp interface limit, namely the volumeof-fluid method with interface reconstruction, the level set method and the front tracking method, as well as methods with finite interface thickness such as color-function based methods and the phase-field method. Variants of the mesoscopic lattice Boltzmann method for two-fluid flows are also discussed, as well as various hybrid approaches. The mathematical foundation of each method is given and its specific advantages and limitations are highlighted. For continuum methods, the coupling of the interface evolution equation with the single-field Navier-Stokes equations and related issues are discussed. Methods and models for surface tension forces, contact lines, heat and mass transfer and phase change are presented. In the second part of this article applications of the methods in microfluidics and micro process engineering are reviewed, including flow hydrodynamics (separated and segmented flow, bubble and drop formation, breakup and coalescence), heat and mass transfer (with and without chemical reactions), mixing and dispersion, Marangoni flows and surfactants, and boiling.

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“…Comparison of computed tidal levels (top) and surge (bottom) from the control conditions (solid line) with measurements at Newlyn (dots). This figure is available in colour online at wileyonlinelibrary.com/journal/qj with a novel hybrid level set/volume of fluid (LS/VOF) free surface capturing scheme (Lv et al, 2010(Lv et al, , 2012.…”

Section: Surf Zone Modellingmentioning

confidence: 99%

Ensemble prediction of coastal flood risk arising from overtopping by linking meteorological, ocean, coastal and surf zone models

Zou

Chen

Cluckie

et al. 2013

Quart J Royal Meteoro Soc

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This paper presents an integrated 'Clouds-to-Coast' ensemble modelling framework of coastal flood risk due to wave overtopping. The modelling framework consists of four key components: meteorological forecasts, wave-tide-surge predictions, nearshore wave models and surf zone models. This type of ensemble prediction approach allows us to estimate the probabilities of various outcomes and so improve our understanding of the reliability of results. It also provides a measure of the uncertainty associated with predictions, which can be particularly large for extreme storms, and allows us to assess how the uncertainty propagates from meteorological forecasts to overtopping and subsequent coastal flood risk predictions. Copyright c 2013 Royal Meteorological SocietyKey Words: coastal flooding; overtopping; extreme events; ensemble prediction; uncertainty; sea wall

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A novel coupled level set and volume of fluid method for sharp interface capturing on 3D tetrahedral grids

Cited by 58 publications

References 59 publications

Characterisation of sheet cavity noise of a hydrofoil using the Ffowcs Williams–Hawkings acoustic analogy

Characterisation of sheet cavity noise of a hydrofoil using the Ffowcs Williams–Hawkings acoustic analogy

Numerical modeling of multiphase flows in microfluidics and micro process engineering: a review of methods and applications

Ensemble prediction of coastal flood risk arising from overtopping by linking meteorological, ocean, coastal and surf zone models

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