Prediction of confined three-dimensional impinging flows with various turbulence models

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Journal of Fluids Engineering; (United States)

DOI:https://doi.org/10.1115/1.2910019· OSTI ID:7029611

Liou, T M; Hwang, Y H; Chen, L ^[1]

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1. Dept. of Power Mechanical Engineering, National Tsing Hua Univ., Hsin-Chu 30043 (Taiwan, Province of China)

This paper deals with three-dimensional, turbulent, confined impinging flows. Various turbulence models are examined with reported laser-Doppler velocimetry data and flow-visualization photographs. The turbulence models considered are the k-[epsilon], k-[epsilon] with the Richardson number correction for swirling and recirculating flows (k-[epsilon] w/scm), algebraic Reynolds stress (k-[epsilon] - A), and modified k -kl models. The k-[epsilon] and k-[epsilon] - A models are found to be superior to the k-[epsilon] w/scm and modified k-kl models in predicting the main flow characteristics. The k-[epsilon] - A model provides a better quantitative agreement with the experimental data than can be achieved with the k-[epsilon] model, however, less computational effort is spent with the k-[epsilon] model than with the k-[epsilon] - A model. Also, the effect of the inlet velocity profile on the characteristics of the confined impinging flows is addressed in this study.

• OSTI ID: 7029611
• Journal Information: Journal of Fluids Engineering; (United States), Journal Name: Journal of Fluids Engineering; (United States) Vol. 114:2; ISSN 0098-2202; ISSN JFEGA4
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CALCULATION METHODS
FLOW MODELS
FLOW VISUALIZATION
FLUID FLOW
FLUID MECHANICS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MECHANICS
RICHARDSON NUMBER
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW
VELOCIMETERS
VORTEX FLOW