On estimating the interface normal and curvature in PLIC-VOF approach for 3D arbitrary meshes
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ProjectDNS Y MODELIZACION MULTI-ESCALA DE FENOMENOS DE TRANSPORTE INTERFACIAL EN FLUJOS DE BURBUJAS Y PELICULAS DESCENDIENTES. APLICACION A SISTEMAS Y EQUIPOS TERMICOS (AEI-PID2020-115837RB-I00)
Volume of fluid (VOF) method with its Piecewise Linear Interface Calculation (PLIC) reconstruction algorithm is one of the most popular approaches in numerical simulation of interfacial flows with a wide range of applications in different areas. In an effort to evaluate the similarity of the PLIC-generated planes in comparison with the exact interface, a point-cloud, based on the polygon centers of PLIC planes is extracted, which later is used to form a triangular grid that represents the estimated interface. The main objective of this article is to evaluate the interface geometrical properties based on the extracted triangular grid of the interface. The methods presented in this article, characterized by a higher spatially convergence ratio, are compared with the commonly used methods. The proposed methods are tested for two 3-dimensional general test cases, where an evident improvement is seen in calculation accuracy and spatial convergence of the errors of interface normal vector and curvature.
CitationAmani, A. [et al.]. On estimating the interface normal and curvature in PLIC-VOF approach for 3D arbitrary meshes. "AICHE journal", 3 Gener 2022, p. 1-15.
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