Evaluation of condensation models on TOPFLOW experiment - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Evaluation of condensation models on TOPFLOW experiment

Résumé

Some condensation models were evaluated in this work using TOPFLOW experiment, in which saturated steam bubbles are injected in sub-cooled water inside a vertical pipe. At different heights, the void fraction, velocity and bubble size distribution were measured as radial profiles. A monodispersed approach was used for CFD simulations with Neptune_CFD code. The results obtained with this code slightly overpredicts the void fraction at the first 1.5 meters of the pipe and underestimates it above 1.5m. The void fraction depends of heat and mass transfers between phases, which is linked to the interfacial area and so, to the fragmentation and coalescence phenomena. As a consequence, an analysis of the experimental results will be done to investigate the role of each phenomena. Then, the most appropriate condensation model will be used.
Fichier principal
Vignette du fichier
662_icmf2023.pdf (235.2 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

cea-04448586 , version 1 (09-02-2024)

Identifiants

  • HAL Id : cea-04448586 , version 1

Citer

Tanguy Herry, Bruno Raverdy, Stéphane Mimouni. Evaluation of condensation models on TOPFLOW experiment. ICMF 2022 - 11th International Conference on Multiphase Flow, Apr 2023, Kobe, Japan. pp.662. ⟨cea-04448586⟩
22 Consultations
17 Téléchargements

Partager

Gmail Facebook X LinkedIn More