Actions for Predictive modelling of particle-laden, turbulent flows. Quarterly progress report No. 2, January 1, 1993--March 31, 1993 [electronic resource].

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Predictive modelling of particle-laden, turbulent flows. Quarterly progress report No. 2, January 1, 1993--March 31, 1993 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
22 pages : digital, PDF file
Additional Creators
Carnegie Mellon University. Department of Chemical Engineering, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The excellent comparison between the data of Bader et al (1988) and the predictions using the fully-developed flow model of Sinclair and Jackson (1989) have not yet been repeated with any other experimental data set for riser flow. This may be due to the fact that the data sets investigated thus far have reflected gas-solid flow in a developing state (low L/D ratios). In addition, the model of Sinclair and Jackson (1989) neglected gas phase turbulence which should have an effect on the solid concentration distribution. Hence, a dilute, particle-laden, turbulent flow model is developed here. Model predictions highlight the importance of an independent measurement of the specularity factor, an appropriate representation of the kinetic contribution to the total particle phase stress for very low solid loadings in confined flows, and a correct representation of the interaction between the fluctuating velocity components for the two phases.
Report Numbers
E 1.99:doe/pc/92540--t2
doe/pc/92540--t2
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
07/01/1993.
"doe/pc/92540--t2"
"DE93017725"
Sinclair, J.L.
Type of Report and Period Covered Note
Quarterly; 01/01/1993 - 03/31/1993
Funding Information
FG22-92PC92540
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