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On local Görtler instability

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Résumé

On a présenté une modification simple de la critère de Görtler pour l'instabilité de la couche limite laminaire sur une paroi de courbature concave, ce qui met en évidence la dépendence de la critère sur la longueur finie de la région de courbature. L'effet de la longueur finie n'est signifiant que pour les tourbillons excités ayant les plus grandes possibles longueurs d'onde. On a suggéré que ce sont les derniers qui peuvent être les plus importants parce qu'ils s'amortissent le moins rapidement avec la distance en aval de la région de courbature.

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Authors and Affiliations

  1. Ames Research Center, NASA, Moffett Field, California, USA

    Murray Tobak

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  1. Murray Tobak
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Tobak, M. On local Görtler instability. Journal of Applied Mathematics and Physics (ZAMP) 22, 130–143 (1971). https://doi.org/10.1007/BF01624058

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  • DOI: https://doi.org/10.1007/BF01624058

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