If u denotes a local, spatial average of u, then u′ = u − u is the associated fluctuation. Consider a time relaxation term added to the usual finite element method. The simplest case for the model advection equation ut + −→a · ∇u = f(x, t) is (uh,t + −→a · ∇uh, vh) + χ(uh, v′ h) = (f(x, t), vh). We analyze the error in this and (more importantly) higher order extensions and show that the added ...

No AccessTechnical Notes“Added-Mass” Vortex-Sheet Development in an Accelerating Incident FlowPascal Gehlert and Holger BabinskyPascal https://orcid.org/0000-0001-9825-6423University of Cambridge, England CB2 1PZ, United Kingdom*Postdoctoral Researcher, Department Engineering; . Student Member AIAA.Search for more papers by this author BabinskyUniversity Kingdom†Professor Aerodynamics, Fellow a...

BACKGROUND Gradual increases in mass such as during pregnancy are associated with changes in gait at natural velocities. The purpose of this study was to examine how added mass at natural and imposed slow walking velocities would affect gait parameters. METHODS Eighteen adult females walked at two velocities (natural and 25 % slower than their natural pace) under four mass conditions (initial...

0 1 5 Frequency [GHz] 6 2 3 4 Abstract The validity of lumped element microwave class-F amplifier circuit design has been demonstrated experimentally. By means of the proposed class-F amplifier design method, more than 4th-order higher harmonic frequencies can be taken into account in class-F microwave amplifier design using only lumped element components. In this approach, miniaturization of c...