CFD analysis of laminar oscillating flows

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Description

This paper describes a numerical simulations of oscillating flow in a constricted duct and compares the results with experimental and theoretical data. The numerical simulations were performed using the computational fluid dynamics (CFD) code CFX4.2. The numerical model simulates an experimental oscillating flow facility that was designed to test the properties and characteristics of oscillating flow in tapered ducts, also known as jet pumps. Jet pumps are useful devices in thermoacoustic machinery because they produce a secondary pressure that can counteract an unwanted effect called streaming, and significantly enhance engine efficiency. The simulations revealed that CFX could accurately model velocity, ... continued below

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6 p.

Creation Information

Booten, C. W. Charles W.); Konecni, S. (Snezana); Smith, B. L. (Barton L.) & Martin, R. A. (Richard A.) January 1, 2001.

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Description

This paper describes a numerical simulations of oscillating flow in a constricted duct and compares the results with experimental and theoretical data. The numerical simulations were performed using the computational fluid dynamics (CFD) code CFX4.2. The numerical model simulates an experimental oscillating flow facility that was designed to test the properties and characteristics of oscillating flow in tapered ducts, also known as jet pumps. Jet pumps are useful devices in thermoacoustic machinery because they produce a secondary pressure that can counteract an unwanted effect called streaming, and significantly enhance engine efficiency. The simulations revealed that CFX could accurately model velocity, shear stress and pressure variations in laminar oscillating flow. The numerical results were compared to experimental data and theoretical predictions with varying success. The least accurate numerical results were obtained when laminar flow approached transition to turbulent flow.

Physical Description

6 p.

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  • "Submitted to: 2001 ASME Fluids Engineering Division Summer Meeting (FEDSM01), New Orleans, Louisiana, May 29-June 1, 2001."

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  • Report No.: LA-UR-01-0872
  • Report No.: LA-UR-01-872
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975138
  • Archival Resource Key: ark:/67531/metadc929266

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

Description Last Updated

  • Dec. 12, 2016, 2:56 p.m.

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Booten, C. W. Charles W.); Konecni, S. (Snezana); Smith, B. L. (Barton L.) & Martin, R. A. (Richard A.). CFD analysis of laminar oscillating flows, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc929266/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.