This paper presents practical eulerian rough wall boundary conditions for particle mean velocity and fluctuating components. The model derives from a pdf approach and the Sommerfeld particle-wall rebound theory . We have implemented these boundary conditions in 2D Euler/Euler code “Me´lodif” by neglecting the “shadow effect”  and assuming an half-gaussian distribution for wall-normal incident particle velocities. Lagrangian calculations in which the particle-wall collisions are treated following Sommerfeld , are carried out. Low and high roughness cases are simulated and both simulations results are compared with Sommerfeld experimental database.
- Fluids Engineering Division
Comparison Between Euler-Euler and Euler-Lagrange Computations of Gas-Solid Turbulent Flow in a Horizontal Channel With Different Wall Roughness
Konan, NA, Lai´n, S, Simonin, O, & Sommerfeld, M. "Comparison Between Euler-Euler and Euler-Lagrange Computations of Gas-Solid Turbulent Flow in a Horizontal Channel With Different Wall Roughness." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 1: Symposia, Parts A and B. Miami, Florida, USA. July 17–20, 2006. pp. 617-625. ASME. https://doi.org/10.1115/FEDSM2006-98263
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