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Title: A computational model for coal transport and combustion. Quarterly technical progress report, March 1, 1993--May 31, 1993

Technical Report ·
DOI:https://doi.org/10.2172/10180318· OSTI ID:10180318

The objective of this project is to develop an accurate model describing turbulent flows of coal slurries, rapid flows of granular coal-air mixtures, and turbulent coal combustion processes. The other main objective is to develop a computer code incorporating the new model. Experimental verification of the foundation of the model is also included in the study. Progress was made in the experimental study of monolayer simple shear flow device. Preliminary data concerning the shearing of 12 mm multi-color glass particles are obtained. The experimental data for the mean velocity and the solid volume fraction show the expected variations. The thermodynamically consistent, rate dependent model for turbulent two-phase flows analysis was used and the phasic fluctuation energy production rates are evaluated. Further progress on the application of the kinetic model for rapid flows of granular materials including the frictional energy losses were made. The velocity and the solid volume fraction profiles for granular flows down a vertical channel were obtained. The computational model was used and the rapid granular flows around a rectangular block in a channel were analyzed.

Research Organization:
Clarkson Univ., Potsdam, NY (United States). Dept. of Mechanical and Aeronautical Engineering
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG22-91PC91297
OSTI ID:
10180318
Report Number(s):
DOE/PC/91297-7; ON: DE93041222
Resource Relation:
Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English