Numerical simulation of 3D unsteady turbulent free surface flows using κ - ε model and ADBQUICKEST scheme

Autor(es)

Kurokawa, F. A. ; Correa, L. ; de Queiroz, R. A. B.

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 40, n. 4, p. 16-pg., 2018-04-01.

Resumo

This work deals with the development of a numerical technique to simulate 3D complex turbulent free surface flows. This technique is based on the finite-difference GENSMAC methodology coupled with high Reynolds kappa - epsilon turbulence model and the ADBQUICKEST upwind scheme to deal with the advective terms. The computations are performed using the 3D version of the Freeflow simulation system, in which the effectiveness of the numerical technique is analyzed for the dam-break flow and a turbulent jet impinging orthogonally onto a flat surface. The numerical results are compared with existing analytical and experimental data. To demonstrate applicability of the Freeflow-3D simulation system for solving complex free surface flows at high Reynolds numbers, a case of the fluid-structure interaction was simulated. (AU)

• Processo FAPESP: 10/16865-2 - Simulação de grandes escalas de escoamentos incompressíveis turbulentos envolvendo superfícies livres móveis
• Beneficiário: Laís Corrêa
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 05/51458-0 - Solucao numerica de escoamentos tridimensionais turbulentos com superficies livres.
• Beneficiário: Fernando Akira Kurokawa
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 06/05910-1 - Simulacao computacional das equacoes de navier stokes incompressiveis em qualquer regime do numero de reynolds.
• Beneficiário: Rafael Alves Bonfim de Queiroz
• Modalidade de apoio: Bolsas no Brasil - Mestrado