A conservative level set method suitable for variable-order approximations and unstructured meshes

“…Recently, the coupled level set (for more information about the level set method, see [222,223,249]) and volume of fluid (CLSVOF) methods [249][250][251] has attracted much attention. As mentioned above, mass conservation and handling large density ratios are the main advantages of the VOF method and inaccurate interface curvature is the main drawback of the VOF method.…”

Section:  Fully Lagrangian Methodsmentioning

confidence: 99%

“…However, the precise capturing and evaluation of the curvature of the free surface is the main advantage of the LS method [208,209,249,252]. It is clear that by coupling the level set and volume of fluid methods (CLSVOF), the mass conservation property of VOF can be combined with the interface smoothness property of LS [249][250][251]. Different algorithms for the coupling of LS and VOF methods have been suggested [249][250][251].…”

Section:  Fully Lagrangian Methodsmentioning

confidence: 99%

“…It is clear that by coupling the level set and volume of fluid methods (CLSVOF), the mass conservation property of VOF can be combined with the interface smoothness property of LS [249][250][251]. Different algorithms for the coupling of LS and VOF methods have been suggested [249][250][251]. In general, in comparison with the VOF method, in CLSVOF we have less spurious currents and more accurate interface normal and curvature.…”

Section:  Fully Lagrangian Methodsmentioning

confidence: 99%

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A Comprehensive Review on Fluid Dynamics and Transport of Suspension/Liquid Droplets and Particles in High-Velocity Oxygen-Fuel (HVOF) Thermal Spray

2015

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Abstract:In thermal spraying processes, molten, semi-molten, or solid particles, which are sufficiently fast in a stream of gas, are deposited on a substrate. These particles can plastically deform while impacting on the substrate, which results in the formation of well-adhered and dense coatings. Clearly, particles in flight conditions, such as velocity, trajectory, temperature, and melting state, have enormous influence on the coating properties and should be well understood to control and improve the coating quality. The focus of this study is on the high velocity oxygen fuel (HVOF) spraying and high velocity suspension flame spraying (HVSFS) techniques, which are widely used in academia and industry to generate different types of coatings. Extensive numerical and experimental studies were carried out and are still in progress to estimate the particle in-flight behavior in thermal spray processes. In this review paper, the fundamental phenomena involved in the mentioned thermal spray techniques, such as shock diamonds, combustion, primary atomization, secondary atomization, etc., are discussed comprehensively. In addition, the basic aspects and emerging trends in simulation of thermal spray processes are reviewed. The numerical approaches such as Eulerian-Lagrangian and volume of fluid along with their advantages and disadvantages are explained in detail. Furthermore, this article provides a detailed review on simulation studies published to date. OPEN ACCESSCoatings 2015, 5 577

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“…The Y Zβ shock-capturing has been used also in a number of other contexts, including as discontinuity capturing in modeling arterial drug delivery [21] and free-surface flows [22][23][24][25], and as shock-capturing in edge-based SUPG computation of inviscid compressible flows [26].…”

Section: Introductionmentioning

confidence: 99%

Particle tracking and particle–shock interaction in compressible-flow computations with the V-SGS stabilization and $$YZ\beta $$ Y Z β shock-capturing

et al. 2015

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The Y Zβ shock-capturing technique, which is residual-based, was introduced in conjunction with the Streamline-Upwind/Petrov-Galerkin (SUPG) formulation of compressible flows in conservation variables. It was later also combined with the variable subgrid scale (V-SGS) formulation of compressible flows in conservation variables and successfully tested on 2D and 3D computation of inviscid flows with shocks. In this paper we extend that combined method to inviscid flow computations with particle tracking and particle-shock interaction. Particles are tracked individually, assuming one-way dependence between the particle dynamics and the flow. We present two steady-state test computations with particle-shock interaction, one in 2D and one in 3D, and show that the overall method is effective in particle tracking and particle-shock interaction analysis in compressible flows.

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A conservative level set method suitable for variable-order approximations and unstructured meshes

Cited by 124 publications

References 68 publications

Direct Fem Large Scale Computation of Turbulent Multiphase Flow in Urban Water Systems and Marine Energy

Direct Fem Large Scale Computation of Turbulent Multiphase Flow in Urban Water Systems and Marine Energy

A Comprehensive Review on Fluid Dynamics and Transport of Suspension/Liquid Droplets and Particles in High-Velocity Oxygen-Fuel (HVOF) Thermal Spray

Particle tracking and particle–shock interaction in compressible-flow computations with the V-SGS stabilization and $$YZ\beta $$ Y Z β shock-capturing

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