A dissipative scale-similarity model
Paper i proceeding, 2010

When Bardina in 1980 developed the scale-similarity model it was found that the gradient of the scale-similarity stress tensor was not sufficiently dissipative. They had to add a Smagorinsky SGS model. The present paper presents a scale-similarity model which is dissipative; this is achieved by using the fact that the viscous diffusion term is always dissipative. We include the gradient of the scale-similarity stress tensor only when its sign agrees with that of the viscous diffusion term, otherwise it is set to zero.

Författare

Lars Davidson

Chalmers, Tillämpad mekanik, Strömningslära

ERCOFTAC Series

1382-4309 (ISSN) 2215-1826 (eISSN)

Vol. 13 261-266

Ämneskategorier

Strömningsmekanik och akustik

DOI

10.1007/978-90-481-3652-0_39

ISBN

978-90-481-3652-0