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Communication Dans Un Congrès Année : 2022

Experimental characterisations and numerical simulation of fluid-structure interactions for casting control

Aboubakry Agne
  • Fonction : Auteur
Michel Arrigoni
N. Montagu
  • Fonction : Auteur
Julien Le Clanche
  • Fonction : Auteur
  • PersonId : 1306431
M. Long
  • Fonction : Auteur
Mylène Leduc
  • Fonction : Auteur
  • PersonId : 1196476
Alexandre Charles
  • Fonction : Auteur correspondant
  • PersonId : 1307046

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Ngadia Tahane Niane
  • Fonction : Auteur
  • PersonId : 1196474
Steven Kerampran

Résumé

Hollow turbojet blades are manufactured by a lost-wax casting process. After several steps aimed at manufacturing a consumable mold with inserts, the pouring or casting phase is a key step in the process, which consists of pouring a nickel-based superalloy at liquid state into the mold and then solidifying it. In order to improve the manufacturing process, chiefly the pouring step, the interaction between the molten metal and the thin walls of the casting mold are studied for several flow rates representative of the process. In order to better understand this interaction, which is difficult to observe during a casting, we use a test-calculation dialogue. Hydrodynamic and fluid-structure interaction calculations are correlated and validated using an experimental setup developed specifically for this study, in which molten metal is replaced by water based on Reynolds number similarity. A model of the experimental test bench was carried out with thecalculation code FLOW-3D®, a CFD tool dedicated to free surface movements including a fluid-structure model. The results of the flow calculations allow to find the trends of the velocity field in the fluid around the structure and its displacement with a good agreement with the experimental observations.
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Dates et versions

hal-04281704 , version 1 (14-11-2023)

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  • HAL Id : hal-04281704 , version 1

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Aboubakry Agne, Michel Arrigoni, N. Montagu, Julien Le Clanche, M. Long, et al.. Experimental characterisations and numerical simulation of fluid-structure interactions for casting control. 25e Congrès Français de Mécanique, Aug 2022, Nantes, France. ⟨hal-04281704⟩
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