Research on heat transfer law of cement clinker accumulation body in grate cooler based on lattice Boltzmann method

Abstract

In view of the porous media characteristics of the clinker accumulation body in the cement cooler, this paper combined the seepage heat transfer theory with the lattice Boltzmann method (LBM) to analyze the heat transfer of the particle accumulation body. According to the principle of nonmutation of permeability, the minimum feature unit model of cement particles was established, and its heat transfer law was analyzed by LBM. The heat transfer law of the boundary of the feature unit was obtained, and it was used to analyze the heat transfer law of the whole accumulation body by using the double‐loop nesting algorithm. The correctness of this study result was verified by particle heat transfer experiments.

Numerical investigation of low Prandtl number effect on mixed convection in a horizontal channel by the lattice Boltzmann method

“…15,16 It is a mesoscopic approach that solves the Boltzmann equation (BE) with the Bhatnagar-Gross-Krook (BGK) approximation. 17 In comparison with the conventional computational fluid dynamics methods, based on the Navier-Stokes equations, the LBM offers some interesting advantages such as easy calculation procedure, a simple implementation for parallel computation, and simulation of complex fluid problems such as nanofluids, [18][19][20][21] MHD flow, 22 porous media, [23][24][25] multiphase flow, 26 melting PCM, 27 and turbulent flow. 22,28,29 Generally, there are three categories of thermal lattice Boltzmann models: the multispeed model, 30 the passive scalar model, 31 and the double-distribution model.…”