Flow separation from 3 slender bodies of revolution in steady turning is studied using Computational Fluid Dynamics RANS simulations. The body profiles include the DRDC-STR, DARPA SUBOFF, and the Series-58 Model 4621. The flow conditions consider varying turning radii, 1.0≤R/l≤10 (where R is the radius of the turn and l is the body length) with a fixed pivot point located 25% aft of the nose. The Reynolds numbers considered were 6.5, 11.7 and 23 million. Scaling laws deduced for the development of separation along the midbody and tail were used to develop an analytical model for predicting the separation line along a body of revolution of arbitrary profile.
Ocean Engineering – Elsevier
Published: Nov 1, 2015
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