Navier-Stokes solutions for vortical flows over a tangent-ogive cylinder

Reynolds number (Re) effects on low-speed vortical flows over 3.5-caliber, tangent-ogive cylinders at two angles of attack (α=20 and 30 deg) are computationally assessed for Re D =0.2-3 million (D: maximum diameter). The flowfield results are steady-state solution to the three-dimensional, incompressible Navier-Stokes equations in their thin-layer approximation. For the first time, a crossflow separation pattern, which consists of a laminar separation bubble with a subsequent transition in the separating shear layer that forms a primary vortex, has been modeled

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