Numerical simulation of the vortical flow over a round-edged double-delta wingSimulations of three-dimensional vortical flows over a thin double-delta wing with an aspect ratio of 2.05 have been performed. Steady-state solutions to the unsteady incompressible Navier-Stokes equations are obtained using a new implicit upwind-relaxation finite-difference scheme. The method is second-order accurate spatially and naturally dissipative. Numerical results indicate that key features of both vortical interaction and vortex breakdown are successfully simulated. The computed lift coefficients and lateral trajectories of the vortical cores are in good agreement with the experimental data.
Document ID
19890023781
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hsu, C.-H. (Vigyan Research Associates, Inc. Hampton, VA, United States)
Liu, C. H. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Aerodynamics
Meeting Information
Meeting: Southeastern Conference on Theoretical and Applied Mechanics