NASA NASA-TM-X-3128
NASA NASA-TM-X-3128 1974-JAN-01 Expermental aerodynamc characterstcs for a cylndrcal body of revoluton wth varous noses at angles of attack from 0 deg to 58 deg and Mach numbers from 06 to 20
NASA NASA-TM-X-3128 1974-JAN-01 Expermental aerodynamc characterstcs for a cylndrcal body of revoluton wth varous noses at angles of attack from 0 deg to 58 deg and Mach numbers from 06 to 20
An experimental investigation was conducted to determine the effect of forebody geometry, a grit ring around the nose, Reynolds number, Mach number, and angle of attack on the aerodynamic characteristics of a body of revolution. Aerodynamic force and moment characteristics were measured for a cylindrical body with tangent ogive noses of fineness ratio 2.5, 3.0, 3.5, and 5.0. The cylindrical body was tested with an ogive nose having a rounded tip and an ogive nose with two different nose strake arrangements. Aerodynamic configurations were tested at various Mach numbers, angles of attack, and Reynolds numbers. The data demonstrate that the aerodynamic characteristics for a body of revolution can be significantly affected by changes in nose fineness ratio, nose bluntness, Reynolds number, Mach number, and, of course, angle of attack. Nose strakes increased the normal forces but had little effect on the side forces that developed at subsonic Mach numbers for alpha greater than about 25. A grit ring around the nose had little or no effect on the aerodynamic characteristics.