User: Guest  Login
Title:

A mixed/hybrid Dirichlet formulation for wall-bounded flow problems including turbulent flow

Document type:
Zeitschriftenaufsatz
Author(s):
Gamnitzer, P.; Gravemeier, V.; Wall, W.A.
Abstract:
In this study, a new method for the weak imposition of Dirichlet boundary conditions in convection-dominated convection-diffusion and wall-bounded turbulent flow problems is developed. It is based on an embedded Dirichlet formulation which utilises an additional discontinuous stress field for imposing boundary conditions. Values at outflow boundaries may not be sufficiently controllable on underresolved meshes, e.g., when using Nitsche’s method for weak enforcement of Dirichlet boundary conditi...     »
Keywords:
embedded Dirichlet formulation, weak boundary conditions, law of the wall, variational multiscale method, turbulent channel flow
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
Computer Methods in Applied Mechanics and Engineering
Year:
2012
Journal volume:
245-246
Pages contribution:
22-35
Covered by:
Web of Science
Reviewed:
ja
Language:
en
Fulltext / DOI:
doi:10.1016/j.cma.2012.06.013
Status:
Verlagsversion / published
Semester:
WS 12-13
Format:
Text
 BibTeX