EXPERIMENTAL STUDY OF WAKE SHIELDING EFFECTS OF THREE CYLINDERS IN CURRENTS

摘要

A large amount of experimental work has been carried out in the past to understand forces on a single cylinder in cross flows. In comparison substantially less work can be found on the interference between multiple cylinders and the number of publications available becomes drastically smaller as the number of cylinders involved increases. The current experimental work systematically examines the wake shielding effects of three cylinders by testing in a towing tank. Though staggered, the three cylinders are arranged mainly along the flow direction. The tests are carried out in the sub-critical and critical Reynolds number regimes. Significant drag reduction on downstream cylinders is identified.