Navier-Stokes analysis of vortex flow over a cropped delta wing. (English) Zbl 0921.76116

Summary: The vortex flow over a \(65^\circ\) cropped delta wing with round leading edge, at \(M_\infty= 0.85\) and \(Re_\infty= 2.38\times 10^6\), has been analyzed for \(10^\circ\), \(20^\circ\), and \(30^\circ\) angles of attack. A vertex based finite volume code, JUMBO3D, with an algebraic turbulence model has been used to solve the Reynolds averaged Navier-Stokes equations. An \(H-O\) type grid generated by a hybrid elliptic-algebraic method has been used here, and a significant improvement of the results over an \(O-O\) type grid has been obtained. The results are compared with available experimental data. The complex physical phenomena due to interactions among the primary, secondary, and tertiary vortices, cross-flow and terminating shocks, and turbulent boundary layer, as visualized from the numerical solutions obtained, are presented and discussed here.


76M25 Other numerical methods (fluid mechanics) (MSC2010)
76N10 Existence, uniqueness, and regularity theory for compressible fluids and gas dynamics
76G25 General aerodynamics and subsonic flows


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