A three-dimensional dual potential procedure for inlets and indraft wind tunnels

A dual-potential formulation of the Navier-Stokes equations

“…1.3.2.1 Applications of the dual potential method The dual potential method has been applied to inviscid and viscous flow problems. Inviscid flow applica tions include the work of Rao et al (1989) and Giannakoglou et al (1988). Rao et al (1987) developed a three-dimensional inviscid rotational flow solver based on the dual potential method.…”

“…Inviscid flow applica tions include the work of Rao et al (1989) and Giannakoglou et al (1988). Rao et al (1987) developed a three-dimensional inviscid rotational flow solver based on the dual potential method. They incorporated a boundary layer interaction scheme for viscous flow problems.…”

“…Some viscous external flow solutions were obtained by Rao (1987) and Davis et al (1986) for flow over two-and three-dimensional troughs. Rao (1987) used interacting boundary layer theory to supply the vorticity to a dual potential code for the inviscid rotational part of the flow. Davis et al (1986Davis et al ( , 1989) use a viscous dual potential method for the entire flow field.…”

On computations of the integrated space shuttle flowfield using overset grids

“…They showed details of the treatment of shocks and wakes, and the solution was compared with Euler solutions. Rao et al (1987Rao et al ( , 1989 combined the boundary-layer equations with the vortidty/vector potential formulation to do viscous-inviscid in teraction. The vortidty was injected from the boundary-layer edge into the potential flow region to obtain the viscous effect.…”

“…Although only irrotational flow was computed in the current research, the proposed scheme has the potential of treating inviscid rotational flows. For the computation of viscous flows, the vortidty/velocity procedure imple mented in the current research can be coupled with the boundary-layer (as in Rao et al, 1987Rao et al, , 1989 or Navier-Stokes equations to solve the viscous flow. The viscous effects in the invisdd region are accounted for through the injection of vorticity from the boundary-layer edge or the computational domain of the Navier-Stokes equations.…”