Numerical Simulation of 3D Multi-fluid Flows

Autor: F.S. SOUSA, N. MANGIAVACCHI, A. CASTELO, L.G. NONATO, M.F. TOMÉ
Jazyk: English<br />Portuguese
Rok vydání: 2002
Předmět:
Zdroj: Trends in Computational and Applied Mathematics, Vol 3, Iss 1 (2002)
Druh dokumentu: article
ISSN: 2676-0029
DOI: 10.5540/tema.2002.03.01.0203
Popis: A method to simulate three-dimensional unsteady multi-fluid flows with free surfaces is described. A sharp interface separates incompressible fluids of different density and viscosity. Surface and interface tensions are also considered and the required curvature is approximated at the fronts by a methodology described in [3]. The method is based on the GENSMAC [14] front-tracking method. The velocity field is computed using a finite-difference scheme in an Eulerian grid. The free-surface and the interfaces are represented by an unstructured Lagrangian grid. The method was validated comparing the numerical results with analytical results for a number of simple problems. Other more complex numerical simulations show the robustness of the method, and some comparisons with experimental results are also presented.
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