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Combined Level Set-VOF Method Used in the Computation of Incompressible Two-Phase Flows

Zhi Ning

Open publisher page 2 citations

Abstract

At present,the main methods of computing two-phase flows are VOF method and Level Set method.In this paper,the combined Level Set-VOF method used in the computation of incompressible two-phase flows was put forward based on the basic idea of CLSVOF method,and the computation results of some classical two-phase flows solved by VOF method,Level Set method and combined Level Set-VOF method were compared.The results show that the combined Level Set-VOF method inherits the advantage of VOF method namely precisely structuring phase interface,and that of Level Set method,namely accurately computing surface tension.The combined Level Set-VOF method can effectively weaken spurious current problems in the computation of two-phase flows and obtain more pre-cise solutions to incompressible two-phase flow problems.

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What this paper is about

At present,the main methods of computing two-phase flows are VOF method and Level Set method.In this paper,the combined Level Set-VOF method used in the computation of incompressible two-phase flows was put forward based on the basic idea of CLSVOF method,and the computation results of some classical two-phase flows solved by VOF method,Level Set method and combined Level Set-VOF method were compared.The results show that the combined Level Set-VOF method inherits the advantage of VOF method namely precisely structuring phase interface,and that of Level Set method,namely accurately computing surface tension.The combined Level Set-VOF method can effectively weaken spurious current problems in the computation of two-phase flows and obtain more pre-cise solutions to incompressible two-phase flow problems.

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Available abstract

At present,the main methods of computing two-phase flows are VOF method and Level Set method.In this paper,the combined Level Set-VOF method used in the computation of incompressible two-phase flows was put forward based on the basic idea of CLSVOF method,and the computation results of some classical two-phase flows solved by VOF method,Level Set method and combined Level Set-VOF method were compared.The results show that the combined Level Set-VOF method inherits the advantage of VOF method namely precisely structuring phase interface,and that of Level Set method,namely accurately computing surface tension.The combined Level Set-VOF method can effectively weaken spurious current problems in the computation of two-phase flows and obtain more pre-cise solutions to incompressible two-phase flow problems.

Key concepts: Volume of fluid method, Level set method, Computation, Compressibility, Set (abstract data type), Level set (data structures), Computer science, Incompressible flow

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