Numerical study of vortical flow over a sideslipping delta wingThe three-dimensional vortical viscous flow past a sideslipping delta wing at a high angle of attack is numerically investigated. A computational method for calculating low-speed viscous flowfields is developed. The time-iterative method uses an implicit upwind-relaxation finite-difference algorithm with a nonsingular eigensystem to solve the preconditioned, three-dimensional, incompressible Navier-Stokes equations in curvilinear coordinates. An algebraic turbulence model is implemented to account for the eddy viscosity. The technique of local time stepping is incorporated to accelerate the rate of convergence to a steady-state solution. Computed results are compared with experimental data.
Document ID
19900058881
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hsu, C.-H. (Vigyan, Inc. Hampton, VA, United States)
Liu, C. H. (NASA Langley Research Center Hampton, VA, United States)