Alstom

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Alstom

• Project data
• Title Simulación 3D del flujo de aire alrededor
  del primer y segundo coche de un tren de alta
  velocidad (TAV)
• Company Ingeniería para el Control del Ruido
  (ICR)
• Period 01/06/2003 - 31/12/2003
• Collaborators Oriol Guasch

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• Objectives
• To propose a model to approximate sound generated
  by turbulent low-Mach flows
• To test different LES turbulence models
• To solve the flow equations until audible
  frequencies
• To obtain the aerodynamic sound

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• Key numerical ingredients
• Algorithm based on Lighthills acoustic analogy
• Stabilized FEM for incompressible flows
• Efficient Fourier transform of the sound source
• Stabilized FEM for the Helmholtz equation

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Results I
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Results II
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Results III