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RISIntroduction to Orthonormal Wavelet Analysis with Shift Invariance: Application to Observed Atmospheric Blocking Spatial Structure
Publisher: American Meteorological Society
Abstract: Orthonormal wavelet analysis (OWA) is a special form of wavelet analysis, especially suitable for analyzing spatial structures, such as atmospheric fields. For this purpose, OWA is much more efficient and accurate than the ...
Atmospheric Energetics in the Wavelet Domain. Part I: Governing Equations and Interpretation for Idealized Flows
Publisher: American Meteorological Society
Abstract: Orthonormal wavelet analysis of the primitive momentum equations enables a new formulation of atmospheric energetics, providing a new description of transfers and fluxes of kinetic energy (KE) between structures that are ...
Instantaneous Wavelet Energetic Transfers between Atmospheric Blocking and Local Eddies
Publisher: American Meteorological Society
Abstract: A new wavelet energetics technique, based on best-shift orthonormal wavelet analysis (OWA) of an instantaneous synoptic map, is constructed for diagnosing nonlinear kinetic energy (KE) transfers in five observed blocking ...
Atmospheric Energetics in the Wavelet Domain. Part II: Time-Averaged Observed Atmospheric Blocking
Publisher: American Meteorological Society
Abstract: Wavelet energetics (WE) is a useful generalization of traditional wavenumber energetics, for analyzing atmospheric dynamics. WE is doubly indexed by wavenumber band j and location k. The interpretation is that 2 to the jth ...
Impact of Damper Stiffness and Damper Support Stiffness on the Efficiency of a Linear Viscous Damper in Controlling Stay Cable Vibrations
Publisher: American Society of Civil Engineers
Abstract: Accurate prediction of optimum damper size and its corresponding maximum attainable modal damping ratio is essential for the design of a linear viscous damper to control cable vibrations on cable-stayed bridges. The stiffness ...
Experimental Investigations of an Internal Flow Generated by Porous Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An anisothermal channel flow generated by a porous injection is investigated in details for different Reynolds numbers of the injection in order to highlight the impact of the microstructure ...
Heat Transfer in a Laminar Channel Flow Generated by Injection Through Porous Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steady state similarity solutions are computed to determine the temperature profiles in a laminar channel flow driven by uniform fluid injection at one or two porous walls. The temperature ...
Voronoi, Delaunay, and Block-Structured Mesh Refinement for Solution of the Shallow-Water Equations on the Sphere
Publisher: American Meteorological Society
Abstract: Alternative meshes of the sphere and adaptive mesh refinement could be immensely beneficial for weather and climate forecasts, but it is not clear how mesh refinement should be achieved. A finite-volume model that solves ...
Evaluation of a Novel Methodology to Measure Bicycle Network Connectivity
Publisher: American Society of Civil Engineers
Abstract: Bicycling is among the most environmentally sustainable and economically affordable travel modes available. The popularity of bicycling activities strongly depends on the availability of well-connected bicycle networks. ...