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Numerical treatment of the normal stress boundary condition for projection methods in free surface flows

Grant number: 15/01243-0
Support type:Scholarships in Brazil - Master
Effective date (Start): May 01, 2015
Effective date (End): February 28, 2017
Field of knowledge:Physical Sciences and Mathematics - Mathematics - Applied Mathematics
Principal Investigator:Cassio Machiaveli Oishi
Grantee:Débora de Oliveira Medeiros
Home Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
Associated research grant:13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry, AP.CEPID

Abstract

In this project we will investigate the numerical treatment of the normal stress condition for projection methods in free surface flows. This condition, which is used to impose the pressure at the free surface, will be discretized by an implicit strategy in order to enhance the numerical stability of the projection method for solving the Navier-Stokes equations. In particular, we will study the construction of a formulation that involves the solution of a superficial laplacian in combination with the Poisson equation of the projection method. In the context of the MAC and front-tracking formulations, in order to apply an accurate solution of the superficial laplacian, numerical computations of the free-surface curvature will be also investigated. Finally, the numerical method will be tested using reference solutions and applied in moving free surface flows. (AU)

Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MEDEIROS, Débora de Oliveira. Tratamento numérico da condição de tensão normal para métodos de projeção em escoamentos com superfície livre. 2017. 83 f. Master's Dissertation - Universidade Estadual Paulista "Júlio de Mesquita Filho" Faculdade de Ciências e Tecnologia..

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