ABSTRACT The present paper investigates the effect of streamwise slots applied to the boattail section of a projectile at supersonic speeds. Experimental work was performed to show the effect of the slots on the drag at Mach numbers M=1.36, 1.65 and 1.83. A single configuration of the slot pattern was used with two different slot widths (0.5mm and 2.0mm). The physics of the cavity flow was computationally investigated as well as the effect of the slots on the overall aerodynamic drag. Unlike the case of streamwise slots at transonic speeds, the suction and blowing mechanism is absent at supersonic speeds. It was found that there is a significant base drag reduction due to the presence of the streamwise slots. The reduction in total drag is modest when the width is W=0.5mm. However, the experiments showed that the drag increases at Mach numbers ranging from 1.36 to 1.83 for a slot width W=2.0mm.
A., I., & A., F. (2008). EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE AERODYNAMICS OF A SUPERSONIC PROJECTILE WITH STREAMWISE SLOTS. The International Conference on Applied Mechanics and Mechanical Engineering, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), 285-313. doi: 10.21608/amme.2008.39392
MLA
IBRAHIM A.; FILIPPONE A.. "EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE AERODYNAMICS OF A SUPERSONIC PROJECTILE WITH STREAMWISE SLOTS", The International Conference on Applied Mechanics and Mechanical Engineering, 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., 2008, 285-313. doi: 10.21608/amme.2008.39392
HARVARD
A., I., A., F. (2008). 'EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE AERODYNAMICS OF A SUPERSONIC PROJECTILE WITH STREAMWISE SLOTS', The International Conference on Applied Mechanics and Mechanical Engineering, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 285-313. doi: 10.21608/amme.2008.39392
VANCOUVER
A., I., A., F. EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE AERODYNAMICS OF A SUPERSONIC PROJECTILE WITH STREAMWISE SLOTS. The International Conference on Applied Mechanics and Mechanical Engineering, 2008; 13(13th International Conference on Applied Mechanics and Mechanical Engineering.): 285-313. doi: 10.21608/amme.2008.39392
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