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Communication Dans Un Congrès Année : 2016

Modal wave propagation characteristics in tunnels of different cross sections

Résumé

In this paper, we address the problem of the modelling and analysing wave propagation in realistic tunnel environments using a numerical model. A 2.5 D TLM based modal algorithm is developed and used to model several tunnel environments, namely an arched tunnel, a metallic tunnel and loaded tunnels with traffic. To analyse wave propagation in these context, a modal nomenclmature is proposed. Depolarisation effects have been demonstrated for arbitrary cross-sections. This effect, often observed during measurement campaigns has been shown with a numerical model.
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Dates et versions

hal-01355564 , version 1 (23-08-2016)

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Jorge Avella Castiblanco, Divitha Seetharamdoo, Marion Berbineau, Michel Ney. Modal wave propagation characteristics in tunnels of different cross sections. 10th European Conference on Antennas and Propagation (EuCAP), Apr 2016, Davos, Switzerland. 4p, ⟨10.1109/EuCAP.2016.7481738⟩. ⟨hal-01355564⟩
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