Longitudinal vortices can potentially enhance heat transfer with small pressure loss penalty.
The objective of this experimental work is to investigate the influence of arrays of
longitudinal vortices generated by half-delta wings on the local and average heat transfer
and fluid flow of an otherwise laminar boundary layer. Heat transfer experiments and hot-
wire velocity measurements were conducted in order to clarify the mechanisms of heat
transfer augmentation. Experiments with arrays of co-rotating and counter-rotating …