Theoretical considerations of the volume penalization immersed boundary method for turbulent flows

Llorente, Víctor J. (Universidad de Zaragoza)

Resumen: This Letter explores the volume penalization immersed boundary method for turbulent flows from a more physical perspective. The volume penalization approach consists of introducing a penalty source into the governing equations, resulting in a flow akin to a porous medium with low permeability. Although penalizing the turbulent equations conventionally involves adding a similar penalty source as in the original equations, this work reveals an alternative formulation that includes an additional term with physical meaning. The novelty of this Letter is to consider the penalized flow with an additional property, the fluid resistance, establishing a cross correlation with fluctuating velocity for further modeling.

Idioma: Inglés

DOI: 10.1063/5.0213290

Año: 2024

Publicado en: Physics of Fluids 36, 7 (2024), 6 pp.
ISSN: 1070-6631

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Matemática Aplicada (Dpto. Matemática Aplicada)