Navier-Stokes analysis of a delta wing in static and dynamic rollThe three-dimensional, Reynolds-averaged, Navier-Stokes equations are used to numerically simulate non-steady high-incidence vortical flow about a 65 degree sweep delta wing under static roll and forced periodic roll motions. These computations have been previously reported in the literature, where emphasis was placed on validating the computational results with nonsteady experimental surface pressures, forces and moments. The emphasis of this research is to revisit these earlier computations and use nonsteady numerical flow visualization to analyze the nonlinear surface flow and vortex breakdown dynamics. Most notable are the periodic formation of surface-flow separation lines, and the periodic formation of vortex breakdown near the delta wing trailing edge.
Document ID
19960016969
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Chaderjian, N. (NASA Ames Research Center Moffett Field, CA United States)
Schiff, L. (NASA Ames Research Center Moffett Field, CA United States)