The Application of a Navier Stokes CFD Method to Civil Engine Intake Flows,
ROLLS ROYCE INC ATLANTA GA
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Three-dimensional flows around civil engine intakes have been calculated by a Navier-Stokes method. The full Reynolds-averaged Navier-Stokes equations for viscous flow are solved by an explicit time-marching cell-centered finite-volume algorithm. To ensure numerical stability, Jamesons formulation of fourth-order and second-order smoothing is used. Second-order smoothing is switched on only in regions of strong pressure gradient such as shocks. The flow may be laminar or turbulent turbulence is treated by a mixing-length eddy viscosity model. The algorithm is applied on a body-fitted C-type computational grid.
- Fluid Mechanics