Abstract

Experimental investigations are carried out on flow over a backward-facing step in a subsonic wind tunnel. The effect of step angle and Reynolds number on reattachment length are studied and compared. The step angles considered are 30°, 45°, 60°, 75°, 90°. The effect of Reynolds number is studied by varying it over a range of 84,000 to 220,000, and it is observed that the reattachment length and recirculation region increase with increase in Reynolds number for all step angles.

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