A Lagrangian particle method for the simulation of dense particulate flows
- Texas A&M Univ., College Station, TX (United States). Dept. of Mechanical Engineering
- Ecole Polytechnique, Paris (France)
- Los Alamos National Lab., NM (United States)
A new approach to the simulation of multi-phase dense particulate flows has been developed based on taking the best of Eulerian/Eulerian and Eulerian/Lagrangian formulations. This new approach uses a modern Particle-In-Cell method that has been extended to multi-phase flows. The method was accurate mappings from Lagrangian particles to and from Eulerian space so that continuum intergranular stress formulations can be incorporated in the modeling. The result is a new model that can handle particulate loading ranging from dense to dilute, a distribution of particle sizes, and a range of particulate materials. This paper describes the new method and results from a one-dimensional implementation. The Lagrangian particulate formulation is well suited for a massively parallel environment, with a coupled high speed calculation of the underlying Eulerian gas phase governing equations. The new simulation method has important applications in Fluidized Bed Combustion, Catalytic Cracking processes and many other granular flows. Extension of the method to two- and three-dimensional flows with parallel computation means that we can offer a comprehensive methodology for dense granular flows.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Texas A and M Univ., College Station, TX (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10159093
- Report Number(s):
- LA-UR-94-1470; CONF-941142-7; ON: DE94013249
- Resource Relation:
- Conference: American Society of Mechanical Engineers` winter annual meeting,Chicago, IL (United States),6-11 Nov 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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