Finite difference-based lattice Boltzmann simulation of natural convection heat transfer in a horizontal concentric annulus |
| |
Authors: | Yong Shi ZL Guo |
| |
Affiliation: | Department of Mechanical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China |
| |
Abstract: | In this paper, a finite difference-based lattice BGK model for thermal flows is proposed based on the double-distribution function approach. We applied this model to simulate natural convection heat transfer in a horizontal concentric annulus bounded by two stationary cylinders with different temperatures. Velocity and temperature distributions as well as Nusselt numbers were obtained for the Rayleigh numbers ranging from 2.38 × 103 to 1.02 × 105 with the Prandtl number around 0.718. It is found that the numerical results are in good agreement with the experimental and numerical results reported in the literature. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|