Computational Fluid Dynamics of Four-Quadrant Marine-propulsor Flow

摘要

Computational fluid dynamics results are presented of four-quadrant flow for marine-propulsor P4381. The solution method is unsteady three-dimensional incompressible Reynolds-averaged Navier-Stokes equations in generalized coordinates with the Baldwin-Lomax turbulence model. The method was used previously for the design condition for marine-propulsor P4119, including Detailed verification and validation. Only limited verification is performed for P4381. The validation Is limited by the availability of four-quadrant performance data ring vortex visualizations for The crashback conditions.