Colloquium Mathematics, Roel Verstappen
Join us for coffee and tea at 15.30 p.m.
Date: Tuesday, October 15th 2013
Speaker: Roel Verstappen
Room: 5161.0293 (Bernoulliborg)
Time: 16.00
Title:
Models for the larger eddies in turbulent flow
Abstract:
Most turbulent flows cannot be computed directly from the Navier-Stokes equations, because they possess far too many scales of motion. Therefore numerical simulations of turbulent flow have to resort to models of the small scales for which numerical resolution is not available. At the crossroads of theory and simulation new models start to develop. Basically there are two types of models: (1) regularization models that directly alter the nonlinearity to counter the production of small scales of motion and (2) dissipative models that effectively increase the viscosity to restrain (damp) the smallest scales. In this talk, both types are discussed and it is proposed to blend them. The blend is successfully tested for turbulent channel flows.
Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : A.C.D.van.Enter@rug.nl) and
Dr. A.V. Kiselev (e-mail: a.v.kiselev rug.nl )
http://www.rug.nl/research/jbi/news/colloquia/mathematics-colloquia/
Last modified: | 10 February 2021 2.29 p.m. |
More news
-
24 March 2025
UG 28th in World's Most International Universities 2025 rankings
The University of Groningen has been ranked 28th in the World's Most International Universities 2025 by Times Higher Education. With this, the UG leaves behind institutions such as MIT and Harvard. The 28th place marks an increase of five places: in...
-
05 March 2025
Women in Science
The UG celebrates International Women’s Day with a special photo series: Women in Science.
-
16 December 2024
Jouke de Vries: ‘The University will have to be flexible’
2024 was a festive year for the University of Groningen. In this podcast, Jouke de Vries, the chair of the Executive Board, looks back.