## 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

JUMBO3D
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### References:

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