Cross flow influence upon impingement convective heat transfer in circular arrays of jets - A general correlation
Abstract
A mathematical formalism is presented which takes into account the cross flow influence on impingement heat transfer rates for arrays of circular jets. A one-dimensional flow description provides a novel dimensionless parameter based on the length of the array in the exit cross flow direction. A relation is derived for evaluating the overall average Nusselt number. For larger values of the dimensionless parameter (larger pressure gradients), heat transfer rates become much larger. This is seen as confirming the strong pressure gradient contribution to the average impingement heat transfer rate.
- Publication:
-
Heat Transfer 1982, Volume 3
- Pub Date:
- 1982
- Bibcode:
- 1982hetr....3..343G
- Keywords:
-
- Computational Fluid Dynamics;
- Convective Heat Transfer;
- Cross Flow;
- Flow Geometry;
- Jet Impingement;
- Flow Velocity;
- Heat Transfer Coefficients;
- Nusselt Number;
- One Dimensional Flow;
- Pressure Gradients;
- Reynolds Number;
- Fluid Mechanics and Heat Transfer