Flow and heat transfer in rotating two-pass rectangular channels (AR=2) by Reynolds stress turbulence model Academic Article uri icon

abstract

  • Numerical predictions of three-dimensional turbulent flow and heat transfer are presented for a rotating two-pass smooth rectangular channel with channel aspect ratio of 2:1. The focus of this study is to investigate the effect of rotation, channel orientation and the sharp 180° turn on the flow and heat transfer distributions. Two channel orientation, are studied: β = 90° and β = 135°. A multi-block Reynolds-averaged Navier-Stokes (RANS) method was employed in conjunction with a near-wall second-moment turbulence closure. The Reynolds number (Re) is fixed at 10,000 while the rotation number (Ro) is varied from 0 to 0.22. Two inlet coolant-to-wall density ratios △ρ/ρ are studied (0.115 and 0.22). The numerical results are compared with the experimental data for both stationary and rotating two-pass rectangular channels. © 2002 Elsevier Science Ltd. All rights reserved.

author list (cited authors)

  • Al-Qahtani, M., Jang, Y., Chen, H., & Han, J.

citation count

  • 39

complete list of authors

  • Al-Qahtani, Mohammad||Jang, Yong-Jun||Chen, Hamn-Ching||Han, Je-Chin

publication date

  • April 2002