Abstract

This paper presents an experimental investigation of highspeed flows past Pillow-Plate Heat Exchanger (PPHE) geometries by means of conventional and focussing schlieren optics. Past investigations have already shown that PPHE has positive flow behaviours compared to other heat exchangers. The static pressure drop along a pillow-plate surface is relatively low, but the profile offers a good mixing and heat transfer behaviour. These characteristics were not very well researched for higher Mach numbers until now.

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