Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
660577 | International Journal of Heat and Mass Transfer | 2011 | 7 Pages |
Abstract
In this paper we present the results on experimental investigation of the local opposing mixed convection heat transfer in the vertical flat channel with symmetrical heating in a laminar–turbulent transition region. The experiments were performed in airflow (p = 0.1–1.0 MPa) in the range of Re from 1.5 × 103 to 6.6 × 104 and Grq up to 1 × 1011 at the limiting condition qw1 = qw2 = const. The analysis of the results revealed significant increase in the heat transfer with increasing of air pressure (Gr number). Also sharp increase in heat transfer was noticed in the region with vortex flow in comparison with the turbulent flow region.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
P. Poskas, R. Poskas, A. Sirvydas, A. Smaizys,