Flow and Heat-Transfer Computations in Rotating Rectangular Channels with V-Shaped Ribs Academic Article uri icon

abstract

  • Computations were performed to study three-dimensional turbulent flow and heat transfer in a rotating rectangular channel with V-shaped ribs. The channel aspect ratio is 4:1, the rib-height-to-hydraulic-diameter ratio e/Dh, is 0.078, and the rib-pitch-to-height ratio P/e is 10. A total of eight calculations have been performed with various combinations of rotation number, Reynolds number, coolant-to-wall density ratio, and channel orientation. The rotation number and inlet coolant-to-wall density ratio were varied from 0.0 to 0.28 and from 0.122 to 0.40, respectively, whereas the Reynolds number was varied from 104 to 5 × 105. Three channel orientations (90, -135, and 135 deg from the rotation direction) were also investigated. A multiblock Reynolds-averaged Navier-Stokes method was employed in conjunction with a near-wall second-moment turbulence closure for detailed predictions of the mean velocities, mean temperature, turbulent Reynolds stresses, and heat fluxes.

author list (cited authors)

  • Su, G., Teng, S., Chen, H., & Han, J.

citation count

  • 7

complete list of authors

  • Su, Guoguang||Teng, Shuye||Chen, Hamn-Ching||Han, Je-Chin

publication date

  • October 2004