On properties of turbulence models

Autor: T. H. Moulden
Rok vydání: 2010
Předmět:
Zdroj: WIT Transactions on Engineering Sciences.
ISSN: 1743-3533
1746-4471
DOI: 10.2495/afm100021
Popis: Many applications of fluid mechanics are to turbulent flows. The practical computation of such flows call upon turbulence models to provide the information needed to close the mean motion equations. The present comments concern those properties of turbulence models that may be obtained by direct study of the field equations defining these models. The second moment model and the k ∼ � model are the focus of attention and norm inequalities are written for these models. The stability properties of the associated dynamical system are determined. Some difficulties associated with obtaining norm estimates are also discussed.
Databáze: OpenAIRE