Accession Number:

ADP007698

Title:

The Application of a Navier Stokes CFD Method to Civil Engine Intake Flows,

Descriptive Note:

Corporate Author:

ROLLS ROYCE INC ATLANTA GA

Personal Author(s):

• Birch, N. T.
• Kitchen, E. H.

Report Date:

1992-02-01

Pagination or Media Count:

10.0

Abstract:

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.

Descriptors:

• *THREE DIMENSIONAL FLOW
• *AIR INTAKES
• ALGORITHMS
• CELLS
• ENGINES
• EQUATIONS
• FLOW
• FORMULATIONS
• GRADIENTS
• NAVIER STOKES EQUATIONS
• PRESSURE
• PRESSURE GRADIENTS
• REGIONS
• STABILITY
• TIME
• TURBULENCE
• VISCOUS FLOW
• VOLUME
• TRANSPORT AIRCRAFT
• SUBSONIC FLIGHT

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE