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Memorias de investigación
Ponencias en congresos:
Quenching Model Based On Multiphase Fluid Dynamics
Año:2012
Áreas de investigación
  • Fisica sm -- estructura de materiales,
  • Dinamica de fluidos
Datos
Descripción
A fully-coupled model of quenching by submerging for steel workpieces is presented. The model includes cooling of the piece due to piece-to-bath heat transfer calculations by solving the multiphase problem of an evaporable fluid, metallurgical transformations and subsequent stress generation. The heat transfer model takes into account different boiling stages, from film boiling at very high surface temperatures, to single-phase convection at temperatures below saturation. The evolution and activation of each heat transfer mechanism depend on the dynamics of the vapor-liquid multiphase system of the quenching bath. The multiphase flow was modeled using the drift-flux mixture model, including an equation of conservation of energy of the liquid phase, and solved with a finite element method. The dependence of heat transfer rates on flow parameters such as velocity and vapor fraction is highlighted. As a result, complex cooling patterns that cannot be recovered by current methodologies based on heat transfer coefficient calculations are obtained. By using these results, metallurgical transformations and stress analysis can be predicted more accurately.
Internacional
Si
Nombre congreso
6th International Quenching and Control of Distortion Conference
Tipo de participación
960
Lugar del congreso
Chicago (EE.UU.)
Revisores
Si
ISBN o ISSN
978-1615039807
DOI
Fecha inicio congreso
09/09/2012
Fecha fin congreso
13/09/2012
Desde la página
394
Hasta la página
405
Título de las actas
Quenching and Control of Distortion 2012: Proceedings of the 6th International Conference on Quenching and Control of Distortion
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Diego Passarella (Universidad de Vigo)
  • Autor: Fernando Varas Merida (UPM)
  • Autor: Elena Martin (Universidad de Vigo)
  • Autor: Ivan Vieitez (Universidad de Vigo)
  • Autor: Ruben Lopez-Cancelos (Universidad de Vigo)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
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