Abstract: This paper presents a computational study to better understand the underlying fluid dynamics associated with various duct shapes and the resultant impact on both total vehicle drag and propulsor ...

Abstract: The unsteady turbulent inflow into a swirl-inducing stator upstream of propeller (SISUP) propeller is presented. The upstream stators and hull boundary layer generate a complex, three-dimensional ...

Abstract: The equivalent continuum properties of a structure composed of repeated patterns of discrete elements with both displacement and rotation coordinates are determined. These nodal coordinates are transformed to rigid body ...

Abstract: The unsteady vortex flows produced by biologically inspired tail articulation are investigated. The application is to provide active means of reducing tonal noise due to upstream wake interaction ...

Abstract: This paper presents a method to combine computational fluid dynamics (CFD) modeling with subscale experiments to improve full-scale propulsor performance prediction. Laboratory experiments were ...

Abstract: A computational study was performed to investigate a method to generate vehicle maneuvering forces from a propulsor alone. A ducted, preswirl propulsor was configured with an upstream stator row ...