A review of heat transfer data for single circular jet impingement

Heat transfer to impinging isothermal gas and flame jets

Streamwise distribution of the recovery factor and the local heat transfer coefficient to an impinging circular air jet

Effect of jet-jet spacing on convective heat transfer to confined, impinging arrays of axisymmetric air jets

The local heat transfer from a small heat source to a normally impinging, axisymmetric, and submerged liquid jet, in confined and unconfined configurations, was experimentally investigated. A single jet of FC-77 issuing from a round nozzle impinged onto a square foil heater, which dissipated a constant heat flux. The nozzle and the heat source were both mounted in large round plates to ensure axisymmetric radial outflow of the spent fluid. The local surface temperature of the heat source was measured at different radial locations (r/d) from the center of the jet in fine increments. Results for the local heat transfer coefficient distribution at the heat source are presented as functions of nozzle diameter (0.79 ≤ d ≤ 6.35 mm), Reynolds number (4000 to 23,000), and nozzle-to-heat source spacing (1 ≤ Z/d ≤ 14). Secondary peaks in the local heat transfer observed at r/d 2 were more pronounced at the smaller (confined) spacings and larger nozzle diameters for a given Reynolds number, and shifted radially outward from the stagnation point as the spacing increased. The secondary-peak magnitude increased with Reynolds number, and was higher than the stagnation value in some instances.

Confined and Submerged Liquid Jet Impingement Heat Transfer

Heat Transfer From Arrays of Impinging Jets with Large Jet-to-Jet Spacing

Presentation d'experiences destinees a caracteriser un jet d'air chaud turbulent decharge d'un orifice a bords carres avec un rapport longueur/diametre egal a 1. Mesures des profils de temperature et de vitesse dans le jet et du champ de temperatures sur une plaque plane frappee normalement par le jet. Construction d'un modele de prediction du champ de temperatures sur la plaque

Entrainment Effects on Impingement Heat Transfer: Part I—Measurements of Heated Jet Velocity and Temperature Distributions and Recovery Temperatures on Target Surface

B. R. Hollworth

Papers

Heat Transfer From Arrays of Impinging Jets with Large Jet-to-Jet Spacing

Entrainment Effects on Impingement Heat Transfer: Part I—Measurements of Heated Jet Velocity and Temperature Distributions and Recovery Temperatures on Target Surface