Experimental Investigation of Flow Past an Axially-Aligned Spinning Cylinder

Turbulent flow past axially aligned spinning cylinders are of common occurrence in projectiles, missiles, and munitions and the modeling and the prediction of these flow fields is crucial for their effective design. The objective of this study is to experimentally examine the flow over a single spinning cylinder and its wake to characterize the flow field and separation. The proposed experimental investigation is performed in a low-intensity subsonic wind tunnel and will characterize the flow field of an axially-aligned cylinder. The experiment covers a Reynolds number range of up to 60,000 and rotation numbers of up to 2 (based on cylinder diameter). Full measurement of the wake is possible since a forward mounted sting is used. Experimental investigations performed to date indicate that the experimental setup is capable of accurately capturing the flow separation and the wake flow field. The results are compared with the available data in the literature.