Computation of heat transfer in rotating two-pass square channels by a second-moment closure model Academic Article uri icon

abstract

  • A multiblock numerical method has been employed for the calculation of three-dimensional flow and heat transfer in rotating two-pass square channels with smooth walls. The finite-analytic method solves Reynolds-averaged Navier-Stokes equations in conjunction with a near-wall second-order Reynolds stress (second-moment) closure model and a two-layer k-ε isotropic eddy viscosity model. Comparison of second-moment and two-layer calculations with experimental data clearly demonstrate that the secondary flows in rotating two-pass channels have been strongly influenced by the Reynolds stress anisotropy resulting from the Coriolis and centrifugal buoyancy forces as well as the 180°wall curvatures. The near-wall second-moment closure model provides accurate heat transfer predictions which agree well with measured data. (C) 2000 Elsevier Science Ltd. All rights reserved.

author list (cited authors)

  • Chen, H., Jang, Y., & Han, J.

citation count

  • 47

complete list of authors

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

publication date

  • May 2000