COARSE-GRID SIMULATION OF REACTING AND NON-REACTING GAS-PARTICLE FLOWS

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The principal goal of this project, funded under the ''DOE Vision 21 Virtual Demonstration Initiative'' is virtual demonstration of circulating fluidized bed performance. We had proposed a ''virtual demonstration tool'', which is based on the open-domain CFD code MFIX. The principal challenge funded through this grant is to devise and implement in this CFD code sound physical models for the rheological characteristics of the gas-particle mixtures. Within the past year, which was the third year of the project, we have made the following specific advances. (a) We have completed a study of the impact of sub-grid models of different levels ... continued below

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98 pages

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Sundaresan, Sankaran March 2004.

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Description

The principal goal of this project, funded under the ''DOE Vision 21 Virtual Demonstration Initiative'' is virtual demonstration of circulating fluidized bed performance. We had proposed a ''virtual demonstration tool'', which is based on the open-domain CFD code MFIX. The principal challenge funded through this grant is to devise and implement in this CFD code sound physical models for the rheological characteristics of the gas-particle mixtures. Within the past year, which was the third year of the project, we have made the following specific advances. (a) We have completed a study of the impact of sub-grid models of different levels of detail on the results obtained in coarse-grid simulations of gas-particle flow. (b) We have also completed a study of a model problem to understand the effect of wall friction, which was proved in our earlier work to be very important for stable operation of standpipes in a circulating fluidized bed circuit. These are described in a greater detail in this report.

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98 pages

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OSTI as DE00822872

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  • Other Information: PBD: 1 Mar 2004

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  • Report No.: NONE
  • Grant Number: FC26-00NT40971
  • DOI: 10.2172/822872 | External Link
  • Office of Scientific & Technical Information Report Number: 822872
  • Archival Resource Key: ark:/67531/metadc785257

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  • March 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 18, 2016, 1:59 p.m.

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Sundaresan, Sankaran. COARSE-GRID SIMULATION OF REACTING AND NON-REACTING GAS-PARTICLE FLOWS, report, March 2004; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc785257/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.