Dense inclined flows: Theory and experiments. Quarterly technical progress report, January 1, 1994--March 31, 1994
Rapid, gravity-driven flows of granular materials down inclines pose a challenge; even in situations in which the flow is steady and two-dimensional, the balance of momentum and energy within the flow and at the bottom boundary are not well understood. A research program was undertaken integrating theory, computer simulation, and experiment that will focus on dense entry flows down inclines. The effort involves the development of theory informed by the results of simultaneous computer simulations and the construction, instrumentation, and use of an experimental facility in which the variables necessary to assess the success or failure of the theory can be measured. In this period, we have improved the operations of the chute facility to permit a precise setting of its angle. We have also improved the microphone probe and collection vessel that records the mass holdup of particles. We have completed a series of measurements of the impact properties of acrylic and polystyrene spheres. Finally, we have interrogated our computer simulations in an effort to refine our theoretical predictions for the flux of fluctuating energy through a flat, frictional wall.
- Research Organization:
- Cornell Univ., Ithaca, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-91PC90183
- OSTI ID:
- 10154078
- Report Number(s):
- DOE/PC/90183-T11; ON: DE94012605; BR: AA1510050
- Resource Relation:
- Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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