Numerical model for circulation-control flows Academic Article uri icon

abstract

  • Current computational models for circulation-control flows have been applied, in most cases, to elliptical airfoils having only one blowing slot. This work describes a two-dimensional Navier-Stokes solver that has been developed for modeling the flowfields of a circular airfoil with two jets. In its original form, the Baldwin-Lomax algebraic turbulence model is shown to be inadequate for describing compound boundary layers such as those produced by the wall jet. A new turbulence model is therefore proposed. To account for the nonequilibrium production of turbulence at the slot exits and for its suppression due to wall curvature, two corrections to the turbulence model were implemented. A slanted slot exit boundary was used to reduce grid skewness without degrading solution accuracy. The current model has been validated for high-Reynolds-number/low-Mach-number flow over a circular cylinder with two jets. The model is shown to be valid over a wide range of slot flow conditions including stall. Some insight into wall jet separation is also presented. 1994 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

published proceedings

  • AIAA Journal

altmetric score

  • 3

author list (cited authors)

  • Holz, R. G., Hassan, A. A., & Reed, H. L.

citation count

  • 7

complete list of authors

  • Holz, Richard G||Hassan, Ahmed A||Reed, Helen L

publication date

  • April 1994