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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.

MSC:

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

Software:

JUMBO3D
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References:

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