An explicit Runge-Kutta method for 3D turbulent incompressible flowsA computer code has been developed to solve for the steady-state solution of the 3D incompressible Reynolds-averaged Navier-Stokes equations. The approach is based on the cell-center, central-difference, finite-volume formulation and an explicit one-step, multistage Runge-Kutta time-stepping scheme. The Baldwin-Lomax turbulence model is used. Techniques to accelerate the rate of convergence to a steady-state solution include the preconditioned method, the local time stepping, and the implicit residual smoothing. Improvements in computational efficiency have been demonstrated in several areas. This numerical procedure has been used to simulate the turbulent horseshoe vortex flow around an airfoil/flat-plate juncture.
Document ID
19890028321
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sung, Chao-Ho (U.S. Navy, Naval Ship Research and Development Center Bethesda, MD, United States)
Lin, Cheng-Wen (ORI, Inc. Rockville, MD, United States)
Hung, C. M. (NASA Ames Research Center Moffett Field, CA, United States)