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Title: Simulation of annular swirling turbulent flows with a new algebraic Reynolds stress model

Abstract

Swirling flows in annular ducts are utilized in a variety of engineering devices, including combustors, fluid machinery, heat exchangers, swirl nozzles, and cyclone separators. This article presents a numerical simulation of swirling turbulent flows in a cylindrical annular duct. A new algebraic Reynolds stress model (ASM), which was developed specifically for simulating swirling turbulent flows, was employed for the closure of the second-order correlation moments in the time-averaged governing equations. The {kappa}-{epsilon} turbulence model was also used in the present simulation for comparison. The calculated mean flow fields as well as the turbulence quantities were compared in detail with measured test data under different swirl numbers. The predictions by the new ASM are in generally good agreement with the measurements of gas axial and tangential velocities, Reynolds stresses, and wall shear stresses. It is shown that the new ASM is superior to the {kappa}-{epsilon} model in simulating annular swirling turbulent flows.

Authors:
; ;  [1];  [2]
  1. Tsinghua Univ., Beijing (China). Dept. of Engineering Mechanics
  2. Catholic Univ. of America, Washington, DC (United States). Dept. of Mechanical Engineering
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
477331
Resource Type:
Journal Article
Journal Name:
Numerical Heat Transfer. Part B, Fundamentals
Additional Journal Information:
Journal Volume: 31; Journal Issue: 2; Other Information: PBD: Mar 1997
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ANNULAR SPACE; TURBULENT FLOW; NUMERICAL ANALYSIS; FLOW MODELS; COMPARATIVE EVALUATIONS; VORTEX FLOW

Citation Formats

Zhang, J, Lu, H, Zhou, L, and Nieh, S. Simulation of annular swirling turbulent flows with a new algebraic Reynolds stress model. United States: N. p., 1997. Web. doi:10.1080/10407799708915107.
Zhang, J, Lu, H, Zhou, L, & Nieh, S. Simulation of annular swirling turbulent flows with a new algebraic Reynolds stress model. United States. https://doi.org/10.1080/10407799708915107
Zhang, J, Lu, H, Zhou, L, and Nieh, S. 1997. "Simulation of annular swirling turbulent flows with a new algebraic Reynolds stress model". United States. https://doi.org/10.1080/10407799708915107.
@article{osti_477331,
title = {Simulation of annular swirling turbulent flows with a new algebraic Reynolds stress model},
author = {Zhang, J and Lu, H and Zhou, L and Nieh, S},
abstractNote = {Swirling flows in annular ducts are utilized in a variety of engineering devices, including combustors, fluid machinery, heat exchangers, swirl nozzles, and cyclone separators. This article presents a numerical simulation of swirling turbulent flows in a cylindrical annular duct. A new algebraic Reynolds stress model (ASM), which was developed specifically for simulating swirling turbulent flows, was employed for the closure of the second-order correlation moments in the time-averaged governing equations. The {kappa}-{epsilon} turbulence model was also used in the present simulation for comparison. The calculated mean flow fields as well as the turbulence quantities were compared in detail with measured test data under different swirl numbers. The predictions by the new ASM are in generally good agreement with the measurements of gas axial and tangential velocities, Reynolds stresses, and wall shear stresses. It is shown that the new ASM is superior to the {kappa}-{epsilon} model in simulating annular swirling turbulent flows.},
doi = {10.1080/10407799708915107},
url = {https://www.osti.gov/biblio/477331}, journal = {Numerical Heat Transfer. Part B, Fundamentals},
number = 2,
volume = 31,
place = {United States},
year = {Sat Mar 01 00:00:00 EST 1997},
month = {Sat Mar 01 00:00:00 EST 1997}
}