Three-dimensional natural convection of a fluid with temperature-dependent viscosity in an enclosure with localized heating

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Description

Three-dimensional natural convection of a fluid in an enclosure is examined. The geometry is motivated by a possible magmaenergy extraction system, and the fluid is a magma simulant and has a highly temperature-dependent viscosity. Flow simulations are performed for enclosures with and without a cylinder, which represents the extractor, using the finite-element code FIDAP (Fluid Dynamics International). The presence of the cylinder completely alters the flow pattern. Flow-visualization and PIV experiments are in qualitative agreement wit the simulations.

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8 p.

Creation Information

Torczynski, J.R.; Henderson, J.A.; O`Hern, T.J.; Chu, T.Y. & Blanchat, T.K. January 1, 1994.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Three-dimensional natural convection of a fluid in an enclosure is examined. The geometry is motivated by a possible magmaenergy extraction system, and the fluid is a magma simulant and has a highly temperature-dependent viscosity. Flow simulations are performed for enclosures with and without a cylinder, which represents the extractor, using the finite-element code FIDAP (Fluid Dynamics International). The presence of the cylinder completely alters the flow pattern. Flow-visualization and PIV experiments are in qualitative agreement wit the simulations.

Physical Description

8 p.

Notes

OSTI as DE95002606

Source

  • 1995 National heat transfer conference, Portland, OR (United States), 5-9 Aug 1995

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  • Other: DE95002606
  • Report No.: SAND--94-2516C
  • Report No.: CONF-950828--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 62624
  • Archival Resource Key: ark:/67531/metadc694782

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1994

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 8:13 p.m.

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Torczynski, J.R.; Henderson, J.A.; O`Hern, T.J.; Chu, T.Y. & Blanchat, T.K. Three-dimensional natural convection of a fluid with temperature-dependent viscosity in an enclosure with localized heating, article, January 1, 1994; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc694782/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.