MEASUREMENT OF VORTEX SEPARATION. PART II. THREE-DIMENSIONAL CIRCULAR AND ELLIPTIC BODIES.
MASSACHUSETTS INST OF TECH CAMBRIDGE AEROPHYSICS LAB
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An experimental investigation of vortex separation about three-dimensional circular and elliptic cones and an ogive cylinder using the hydrogen bubble technique for flow visualization is discussed. Data on the position of the vortex and location of the separation point of the vortex feeding sheet are presented as a function of angle of attack for angles up to thirty degrees. A semi-empirical formula is given to predict the separation position on a circular cone as a function of cone semi-apex angle and angle of attack over the range of angles tested. A semi -empirical formula is also given which predicts the location of separation on an elliptic cone of arbitrary axis-ratio as a function of angle of attack and some equivalent cone semi-apex angle. All data are presumed to be laminar. Author
- Fluid Mechanics