EXPERIMENTAL AND NUMERICAL INVESTIGATION OF LAMINAR-FLOW OVER A FORWARD FACING STEP INSIDE A PIPE

Authors
FREEK C PENALVA P PEREIRA JCF STIEGELMEIER M
Citation
C. Freek et al., EXPERIMENTAL AND NUMERICAL INVESTIGATION OF LAMINAR-FLOW OVER A FORWARD FACING STEP INSIDE A PIPE, Journal of enhanced heat transfer, 2(1-2), 1995, pp. 63-70
Citations number
7
Categorie Soggetti
Thermodynamics,"Engineering, Mechanical
Journal title
Journal of enhanced heat transfer → ACNP
ISSN journal
10655131
Volume
2
Issue
1-2
Year of publication
1995
Pages
63 - 70
Database
ISI
SICI code
1065-5131(1995)2:1-2<63:EANIOL>2.0.ZU;2-E
Abstract
An experimental and numerical study of the 3D laminar flow inside a pi pe over a forward facing step is presented. Flow visualization and LDA results show that as the Reynolds number increases, the flow topology involves from a single to multiple primary horseshoe vortices. The pr edicted 3D axial and tangential velocity fields are in satisfactory ag reement with the experiments. Numerical heat transfer calculations sho w that the horseshoe vortices enhances heat transfer.