Periodic flow and heat transfer using unstructured meshes

✍ Scribed by J. Y. Murthy; S. Mathur

• Book ID: 101244959
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 310 KB
• Volume: 25
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19970930)25:6<659::aid-fld580>3.0.co;2-y

✦ Synopsis

A numerical scheme has been developed for computing ¯uid ¯ow and heat transfer in periodically repeating geometries. Unstructured solution-adaptive meshes are used in a cell-centred ®nite volume formulation. The SIMPLE algorithm is used for pressure±velocity coupling. For periodic ¯ows the static pressure is decomposed into a periodic component and one that varies linearly in the streamwise direction. The latter is computed from the imposition of overall mass balance at the periodic boundary. A subiteration between the periodic pressure correction equation and the correction to the linear component is used. For heat transfer a formulation using the physical rather than the scaled temperature is employed. The scheme is applied to both laminar and turbulent computations of periodic ¯ow and heat transfer in a variety of heat exchanger geometries; comparison with published computations and experimental data is found to be satisfactory.