, Volume 29, Issue 2, pp 185-190

Surface shear stress for a submerged jet impingement using electrochemical technique

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The surface local shear stress values were measured for a round submerged jet, with a fully developed turbulent velocity profile, impinging on a flat surface, using the electrochemical limiting current technique with the electrolyte consisting of potassium ferri- and ferrocyanide supported by aqueous sodium hydroxide. Experimental parameters were in the Reynolds number range 9200–73500, and in␣the nozzle-to-plate distance range 2–10. The measurements of local shear stress values on the impingement surface in the radial direction were taken, and the effect of the experimental parameters on the behaviour of the shear stress values was discussed.