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Abstract
The steady-state performance of a pressurized air wave bearing in concentric position is predicted using a commercial computational fluid dynamics (CFD) code. This code solves the three-dimensional compressible Navier-Stokes equations in the turbulent regime, taking into account the real geometry of both the bearing fluid film and the supply regions. The code can provide detailed information about the flow (pressure, turbulent kinetic energy distributions, velocity profiles, etc.) in all bearing regions including the supply holes. This approach does not involve a correction of the flow rate with an empirical discharge coefficient. The predicted values of the supply flow rates are compared to the experimental values obtained with a dedicated wave bearing test rig located at NASA Glenn Research Center in Cleveland, Ohio.
Review led by Al Palazzolo
