Skip to Main content Skip to Navigation
Theses

Numerical simulation of boiling for industrial quenching processes

Abstract : This thesis focuses on the modelling of boiling that plays an important role on the coolingand heat treatment in quenching processes, it has two components: numerical simulations andexperimental measurements. Both simulations and experiments are envisaged for two scales. Thefirst one concerns small scales: the scale of one or few bubbles. In this case, the focus is put onvery precise numerical simulations for multiphase flows taking into account the surface tension,the direct computations of flows at high Reynolds number, and on reflecting the detachmentand coalescence of bubbles. On that same scale, experimental observations are performed tocontrol, in the volume or at surface, the nucleation of a vapour bubble using a high speedcamera. Measurements of velocity fields by PIV and the temperature by PLIF are realizedunder the same conditions. This will allow us to compare the growth dynamics and shapesof bubbles observed and calculated. Advanced numerical methods are used to fulfil this task:VMS stabilized finite elements, level set, anisotropic adaptation and parallel computing. Thenumerical models proposed in this work are extended and also used to deal with macroscopicscales: at the level of industrial parts considering the vapour films (or a phase of liquid vapourmixture). The additional challenge resides in the modelling of turbulence induced by boiling ina CFD approach.
Document type :
Theses
Complete list of metadatas

Cited literature [141 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/pastel-00734601
Contributor : Abes Star :  Contact
Submitted on : Monday, September 24, 2012 - 9:27:13 AM
Last modification on : Wednesday, October 14, 2020 - 4:02:44 AM
Long-term archiving on: : Tuesday, December 25, 2012 - 3:50:39 AM

File

2012ENMP0019.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : pastel-00734601, version 1

Citation

Nadine El Kosseifi. Numerical simulation of boiling for industrial quenching processes. Other. Ecole Nationale Supérieure des Mines de Paris, 2012. English. ⟨NNT : 2012ENMP0019⟩. ⟨pastel-00734601⟩

Share

Metrics

Record views

1263

Files downloads

4302