Simulation of gas–solid particle flows over a wide range of concentration

✍ Scribed by Christian Masson; B. Rabi Baliga

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 312 KB
• Volume: 28
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19981230)28:10<1441::aid-fld771>3.0.co;2-u

✦ Synopsis

A two-fluid model of gas-solid particle flows that is valid for a wide range of the solid-phase volume concentration (dilute to dense) is presented. The governing equations of the fluid phase are obtained by volume averaging the Navier-Stokes equations for an incompressible fluid. The solid-phase macroscopic equations are derived using an approach that is based on the kinetic theory of dense gases. This approach accounts for particle-particle collisions. The model is implemented in a control-volume finite element method for simulations of the flows of interest in two-dimensional, planar or axisymmetric, domains. The chosen mathematical model and the proposed numerical method are applied to three test problems and one demonstration problem.