The evaluation of performance characteristics of hydrofoil systems employed to support water-borne craft commonly makes use of two-dimensional foil section analysis. Such evaluations are currently in need of more data for handling the contributions of the surfaces in the vicinity of the strut-foil junction where three-dimensional flow-interference effects occur. In this study, towing tank tests were used to evaluate the influence of interference on the lift and drag of selected models of common junction conditions under a variety of submergence, attack, and yaw conditions. The evaluation was made from pressure distribution measurements.
Prepared for Bureau of Ships, Department of the Navy under Bureau of Ships Project No. SF 013 02 01, Task 1702, Office of Naval Research Contract Nonr-710(39)
Ripken, J. F..
Interference Effects of a Strut on the Lift and Drag of a Hydrofoil.
St. Anthony Falls Hydraulic Laboratory.
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