EVALUATION OF THE AERODYNAMIC EFFECT OF A SMOOTH ROUNDED ROOF ON CROSSWIND STABILITY OF A TRAIN BY WIND TUNNEL TESTS

Evaluation of the Aerodynamic Effect of a Smooth Rounded Roof on Crosswind Stability of a Train by Wind Tunnel Tests

The advent of high-speed trains led to new issues and constraints for Vacuum Motor railway network manufacturers and operators.This is the case of crosswind effect, that occurs when train is running in strong wind conditions.The combination of train speed and wind speed generates a relative flow that affects the train stability.Wind tunnel tests on

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On computing the minimum singular value of a tensor sum

Recently, the Lanczos bidiagonalization method over tensor space has been proposed for computing the maximum and minimum Cocktail Set singular values of a tensor sum T.The method over tensor space is practical in memory and has a simple implementation due to recent developments in tensor computations; however, there is still room for improvement in

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