CORRELATIONS OF HEAT-TRANSFER DATA AND OF FRICTION DATA FOR INTERRUPTED PLANE FINS STAGGERED IN SUCCESSIVE ROWS

摘要

The available heat-transfer and friction data on plane fin sur-faces that are interrupted and staggered in successive rows in the fluid-flow direction were separately correlated. The data presented were taken from five reference reports and cover wide ranges of flow Reynolds number, passage hydraulic diameter, fin transverse spacing, fin length in the fluid-flow direction, fin thickness, and various stagger arrangements of the fins.nA single heat-transfer correlation equation was obtained that satisfactorily represents the heat-transfer data over the entire range, of conditions investigated. The friction data required sep¬arate correlation equations above and below the transition Reynolds number of 3500, based on the fin-passage hydraulic diameter. The bulk of the friction data available satisfactorily correlated.