Supersonic Viscous Perfect-Gas Flow Past a Slender Sharp Elliptic Cone

摘要

The supersonic M_∞ = 5 flow past slender elliptic cones with the semi-vertex angle in the plane of the major semi-axis θ_c = 4° and an isothermal surface is investigated under the assumption of the flow symmetry. Calculations on the basis of the time-dependent three-dimensional Navier-Stokes and Reynolds equations are carried out on the Reynolds number and angle of attack ranges 10~4 ≤ Re ≤ 10~8 and 0 ≤ α ≤ 15° for cones with ellipticity coefficients 1/32 ≤ δ = b/a ≤ 1. The effect of the relevant parameters of the problem on the flowfield structure and the aerodynamic characteristics of the cones is demonstrated.