A new version of algebraic stress model for simulating strongly swirling turbulent flows

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Numerical Heat Transfer. Part B, Fundamentals; (United States)

DOI:https://doi.org/10.1080/10407799208944969· OSTI ID:7029846

Zhang, J; Nieh, S; Zhou, L ^[1]

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1. Combustion and Multiphase Flows Lab., Dept. of Mechanical Engineering, Catholic Univ. of America, Washington, DC (US)

A new version of the algebraic Reynolds stress model (ASM) is formulated, simplified, and employed to simulate strongly swirling flows. This model for axisymmetric cylindrical coordinates accounts for some physical mechanisms relevant to swirl-turbulence interactions that have been ignored in the original ASM derived for Cartesian coordinates. The calculated results of gas tangential and axial velocities based on this model are in good agreement with the measurements. The central toroidal recirculation zone and the combined forced and free vortex motion are well predicted. Comparisons of the predicted mean dynamic properties of strongly swirling flows show the superiority of the present model over the k-{epsilon} model and the original ASM. a turbulence model constant {beta} which is introduced in the model formulation and represents the intensity of rotational effect on turbulence, is optimized through successive comparisons with the measured data.

• OSTI ID: 7029846
• Journal Information: Numerical Heat Transfer. Part B, Fundamentals; (United States), Journal Name: Numerical Heat Transfer. Part B, Fundamentals; (United States) Vol. 22:1; ISSN NHBFE; ISSN 1040-7790
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
661300 -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CALCULATION METHODS
CONVECTION
ENERGY TRANSFER
FLOW MODELS
FLUID FLOW
FORCED CONVECTION
GAS FLOW
HEAT TRANSFER
MASS TRANSFER
MATHEMATICAL MODELS
NATURAL CONVECTION
REYNOLDS NUMBER
THERMODYNAMICS
TURBULENT FLOW