Modelling three-dimensional rotating flows in cylindrical-shaped vessels

Autor: M.F. Webster, K. S. Sujatha
Rok vydání: 2003
Předmět:
Zdroj: International Journal for Numerical Methods in Fluids. 43:1067-1079
ISSN: 1097-0363
0271-2091
DOI: 10.1002/fld.509
Popis: SUMMARY This paper reports on a study concerned with the numerical simulation of dough kneading that arises in the food processing industry. Theows considered are in a complex domain setting. Two dough mixers running at various rotation speeds are studied; one with a single stirrer and the other with two stirrers. Stirrers arexed on the lid of the vessel and the motion is driven by the rotation of the outer vessel. Two dierent mixer orientations are considered, generating horizontal or vertical-rotatingowelds. Three-dimensional numerical simulations are performed on the fullow equations in a cylindrical polar co-ordinates system, through anite-element, semi-implicit time stepping, Taylor-Galerkin pressure- correction scheme. The results reect excellent agreement against the equivalent experimentalndings. The motivation for this work is to develop advanced technology to model the kneading of dough. The ultimate target is to predict and adjust the design of dough mixers, so that optimal dough processing may be achieved notably, with reference to local rate-of-work input. Copyright ? 2003 John Wiley & Sons, Ltd.
Databáze: OpenAIRE
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