A computational model for coal transport and combustion. Quarterly technical progress report, December 1, 1992--February 28, 1993
In the period of December 1, 1992 to February 28, 1993, further progress was made in using the thermodynamically consistent, rate dependent model for turbulent two-phase flows analysis. The effect of particle Reynolds number on variations of the fluctuation kinetic energy with the solid volume fraction for the special case of a simple shear flow was analyzed. Additional results for the application of the kinetic model for rapid flows of granular materials, which includes frictional losses were obtained. The velocity profile for granular gravity flow down an inclined chute, including slip velocity at the wall were obtained, and the results were compared with the data of Drake and Shreve and Johnson et al. The computational model for rapid granular and two-phase flows in complex geometries was further developed. The discrete element scheme was used and the granular flow down a chute was analyzed. The results are compared with the experimental data model prediction of Savage, and the simulation results of Campbell and Brennen. The experimental monolayer simple shear flow device was modified to allow for shearing of 12 mm multi-color glass particles. The device was reassembled and made fully operational. Sample videos of the granular motions are obtained. Developing a software for analyzing video images was initiated.
- 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:
- 10143678
- Report Number(s):
- DOE/PC/91297-6; ON: DE93012460
- Resource Relation:
- Other Information: PBD: 1993
- Country of Publication:
- United States
- Language:
- English
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