Frontiers of Energy and Power Engineering in China

, 3:373

Numerical study on natural convection in a square enclosure containing a rectangular heated cylinder

  • Jianhua Lu
  • Baochang Shi
  • Zhaoli Guo
  • Zhenhua Chai
Research Article

DOI: 10.1007/s11708-009-0078-x

Cite this article as:
Lu, J., Shi, B., Guo, Z. et al. Front. Energy Power Eng. China (2009) 3: 373. doi:10.1007/s11708-009-0078-x

Abstract

In this paper, the natural convection in a square enclosure with a rectangular heated cylinder is investigated via the lattice Boltzmann method. A detailed study is conducted on the effect of the cylinder width and the Rayleigh number on the fluid flow and heat transfer. The flow structures and heat transfer patterns are classified into eight buoyant regimes, i.e., four steady regimes, two periodic regimes, one multiple periodic regime, and one chaos regime, two of which are reported for the first time.

Keywords

natural convectionbuoyant regimeheated cylinderlattice Boltzmann

Copyright information

© Higher Education Press and Springer Berlin Heidelberg 2009

Authors and Affiliations

  • Jianhua Lu
    • 1
  • Baochang Shi
    • 2
  • Zhaoli Guo
    • 1
  • Zhenhua Chai
    • 1
  1. 1.State Key Laboratory of Coal CombustionHuazhong University of Science and TechnologyWuhanChina
  2. 2.School of Mathematics and StatisticsHuazhong University of Science and TechnologyWuhanChina