...Suresh V.; Kathiravan Balusamy; Senthilkumar Chidambaram Purpose An experimental investigation of hemispherical forebody interaction effects on the drag coefficient of a D-shaped model is carried out for three-dimensional flow in the subcritical range of Reynolds number 1 × 10⁵ ≤ Re...

... × 10⁶. Design/methodology/approach ICEM CFD and ANSYS CFX solver were used to generate the three-dimensional flow along with its structures. The flow structure and drag coefficient were computed using Reynolds-averaged Navier–Stokes equation model. The drag reduction mechanism was also explained...

... Freestream turbulence Parabolic and spherically blunted nose cones Drag coefficient Velocity profile Turbulence amplification L = Length of the nose cone (cm); d_b = Base diameter (cm); r_b = Base radius (cm); r_n = Radius of the spherical nose...