Adaptive computations of turbulent forced convection

Citation
L. Ignat et al., Adaptive computations of turbulent forced convection, NUM HEAT A, 34(8), 1998, pp. 847-871
Citations number
31
Categorie Soggetti
Mechanical Engineering
Journal title
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
ISSN journal
10407782 → ACNP
Volume
34
Issue
8
Year of publication
1998
Pages
847 - 871
Database
ISI
SICI code
1040-7782(199812)34:8<847:ACOTFC>2.0.ZU;2-F
Abstract
This article presents an adaptive finite element method for solving incompr essible turbulent flows with heat transfer. Solutions are obtained in primi tive variables using a highly accurate quadratic finite element method on u nstructured grids. Turbulence modeling is achieved using the k-epsilon mode l. A projection error estimator is presented that incorporates errors from various sources: velocity, temperature, pressure, and turbulence variables, including the eddy viscosity. The efficiency and reliability of the method ology are studied by solving a problem with a known analytical solution. Th e method is then applied to heat transfer over a backward facing step and t o a heated jet. In all cases, predictions are compared to experiments.