Limitations and empirical extensions of the k-epsilon model as applied to turbulent confined swirling flowsShortcomings and recommended corrections to the standard two-equation k-epsilon turbulence model suggested by previous investigators are presented. They are assessed regarding their applicability to turbulent swirling recirculating flow. Recent experimental data on swirling confined flows, obtained with a five-hole pitot probe and a six-orientation hot-wire probe, are used to obtain optimum values of the turbulence parameters C-mu, C2, and sigma-epsilon for swirling flows. General predictions of moderately and strongly swirling flows with these values are more accurate than predictions with the standard or previous simple extensions of the k-epsilon turbulence model.
Document ID
19840035309
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lilley, D. G. (Oklahoma State University Stillwater, OK, United States)
Abujelala, M. T. (Oklahoma State Univ. Stillwater, OK, United States)