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Simulation des grandes structures de turbulence (LES) de l’écoulement et du transfert de chaleur dans un canal à nervures pour le circuit de refroidissement interne d’une aube de turbine à gaz : synthèse

Large eddy simulation of flow and heat transfer in a ribbed channel for the internal cooling passage of a gas turbine blade: a review.

Auteurs : AHN J.

Type d'article : Article de périodique, Synthèse

Résumé

Herein, 50 articles published over the past 20 years on using large eddy simulation (LES) for the internal cooling passage of a gas turbine, especially the mid-chord ribbed channel, are reviewed for the first time. First, the numerical challenges of performing LES on a ribbed channel and experimental verification are summarized. Next, LES data and the major engineering findings that are difficult to obtain experimentally or using Reynolds-averaged Navier–Stokes simulation (RANS) are covered, and heat transfer on and inside the rib, and the effects of rotation and buoyancy are discussed. Next, recent LES studies related to the shape of the ribbed channel are reviewed, and finally, the contribution of using LES for research on the internal cooling of gas turbines in the future, including those with ribbed channels, is anticipated.

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Pages : 20 p.

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Détails

  • Titre original : Large eddy simulation of flow and heat transfer in a ribbed channel for the internal cooling passage of a gas turbine blade: a review.
  • Identifiant de la fiche : 30031271
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Energies - vol. 16 - n. 9
  • Éditeurs : MDPI
  • Date d'édition : 05/2023
  • DOI : http://dx.doi.org/https://doi.org/10.3390/en16093656

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