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Under a given set of boundary conditions, thermal performance of an electronic system is generally evaluated based on its steady state response. It is a conventional practice that actual time dependent power cycles and thermal boundary conditions are time-averaged to estimate the steady state characteristics. This approach may produce accurate results provided that the time dependency of the power...
Electronic enclosures commonly use fans, including axial fans, impellers and centrifugal blowers, when cooling by forced convection is required. Computational fluid dynamics (CFD) models of electronic enclosures have traditionally employed abstract fan models. These abstract fan models possess highly simplified fan geometries and numerical flow characteristics. The fan geometry is usually a rectangular...
A printed circuit board (PCB) comprises alternating layers of dielectric material and current carrying traces and vias. As performing system-level simulations of PCB's with detailed trace and via geometries is very costly, the present approach considers the effects of the trace and via geometry in the physical model by importing ECAD data consisting of the trace and via layout of the board and determines...
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