Eulerian-Lagrangian Simulation of Gas-Particle Flows

10.6124/TAASRC.200512_37(4).01

張克勤(Keh-Chin Chang)；許志宏(Chih-Hung Hsu)；徐明君(Ming-Chun Hsu)

Two-phase flow ； Gas-particle flow ； Eulerian-Lagrangian formulation ； Inter-particle collisions

中國航空太空學會學刊

37卷4期（2005 / 12 / 01）

281 - 291

英文

The Eulerian-Lagrangian approach is widely applied to the simulation of gas-particle flows. Current development on modeling approaches and numerical methods for the carrier fluid turbulence, motion of dispersed particles, and inter-particle collisions of gas-particle flows are reviewed. Two examples of a collision-dominated and a contact-dominated gas-particle flows are studied for demonstration. The particle-laden turbulent channel flows experimentally investigated by Kulick et al. (1994) are solved using LES/deterministic, RANS/deterministic, and RANS/DSMC methods incorporated with hard-sphere model. The spouted fluidized bed experimentally investigated by Tsuji et al. (1993) is solved using DEM method with soft-sphere model. Finally, topics remained to be studied further are addressed.