Catalogue des ouvrages Université de Laghouat
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Auteur Abdelhafid Abdelhakem
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| MGM 02-22 | MGM 02-22 | Thése | BIBLIOTHEQUE DE FACULTE DE TECHNOLOGIE | théses (tec) | Disponible |
| Titre : | Numercal modeling of the effect of a magnetic field on dynamic configuration during the solidification process of a metallic alloy | | Type de document : | texte manuscrit | | Auteurs : | Abdelhafid Abdelhakem, Auteur ; Lakhdar Hachani, Directeur de thèse | | Editeur : | Laghouat : Université Amar Telidji - Département d'informatique | | Année de publication : | 2022 | | Importance : | 171 p | | Format : | 27 cm | | Note générale : | Option : Material physics | | Langues : | Anglais | | Catégories : | THESES :17 physique
| | Résumé : | This work aims to contribute to the development of a numerical model that predicts the effect of natural and forced convection on the phase change of metallic alloys. The geometrical configuration considered throughout this study was chosen to correspond to the crucible of an experimental benchmark called 'AFRODITE', developed at the SIMAP-EPM laboratory in Grenoble/France. A 3D numerical model was proposed based on the enthalpy approach (to treat cases of solidification of metal alloys with the segregation phenomenon) under the influence of natural convection and forced convection caused by electromagnetic stirring. This model has been applied in order to better understand, master and control the solidification process of metallic alloys, in terms of defects that occur during the solidification, particularly segregation at the meso and macroscopic scale. The developed numerical model was validated by in-situ and real-time measurements of temperatures at any point of the solidification system, which allows quantitative and qualitative validation. | | note de thèses : | Thèse de doctorat en physique |
Numercal modeling of the effect of a magnetic field on dynamic configuration during the solidification process of a metallic alloy [texte manuscrit] / Abdelhafid Abdelhakem, Auteur ; Lakhdar Hachani, Directeur de thèse . - Laghouat : Université Amar Telidji - Département d'informatique, 2022 . - 171 p ; 27 cm. Option : Material physics Langues : Anglais | Catégories : | THESES :17 physique
| | Résumé : | This work aims to contribute to the development of a numerical model that predicts the effect of natural and forced convection on the phase change of metallic alloys. The geometrical configuration considered throughout this study was chosen to correspond to the crucible of an experimental benchmark called 'AFRODITE', developed at the SIMAP-EPM laboratory in Grenoble/France. A 3D numerical model was proposed based on the enthalpy approach (to treat cases of solidification of metal alloys with the segregation phenomenon) under the influence of natural convection and forced convection caused by electromagnetic stirring. This model has been applied in order to better understand, master and control the solidification process of metallic alloys, in terms of defects that occur during the solidification, particularly segregation at the meso and macroscopic scale. The developed numerical model was validated by in-situ and real-time measurements of temperatures at any point of the solidification system, which allows quantitative and qualitative validation. | | note de thèses : | Thèse de doctorat en physique |
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| Thd 17-37 | Thd 17-37 | Thése | BIBLIOTHEQUE DE FACULTE DES SCIENCES | théses (sci) | Disponible |
| thed 17-16 | thed 17-16 | Thése | SALLE DES THESES bibliothèque centrale | théses en physique | Disponible |
| Titre : | Numerical simulation of a melting problem by electromagnetic induction : Application on a Pure Tin | | Type de document : | texte manuscrit | | Auteurs : | Elhadj Benaida, Auteur ; Omar Elfarouk Benouar, Auteur ; Lakhdar Hachani, Directeur de thèse ; Abdelhafid Abdelhakem, Directeur de thèse | | Editeur : | Laghouat : Université Amar Telidji - Département de génie mécanique | | Année de publication : | 2022 | | Importance : | 71 p. | | Format : | 30 cm. | | Accompagnement : | 1 disque optique numérique (CD-ROM) | | Note générale : | Option : Energetic (Énergétique) | | Langues : | Anglais | | Résumé : | Materials development is a common concern for materials scientists and industrialists who have an interest in meeting the new needs of new technologies. In many cases, the development of traditional or new materials involves a high temperature melting phase. This step is intended to produce the homogeneous reaction in liquid phase of the different components, and is a critical step with respect to the properties of the material. The melting, whatever the mode of heat production, is often at the origin of the degradation of the purity of the basic elements which compose the final material. Indeed, these elements interact in the liquid state and at high temperature by physical and chemical reactions with the walls of the crucibles necessary to contain them, which also usually involves imposing a stirring motion on the metal during the change in solid-liquid phase. However, the stirrer has many
advantages over the frame, it is not without disadvantages regarding the purity of the material produced by the introduction of the stirring elements in the liquid part. | | note de thèses : | Mémoire de master en génie mécanique |
Numerical simulation of a melting problem by electromagnetic induction : Application on a Pure Tin [texte manuscrit] / Elhadj Benaida, Auteur ; Omar Elfarouk Benouar, Auteur ; Lakhdar Hachani, Directeur de thèse ; Abdelhafid Abdelhakem, Directeur de thèse . - Laghouat : Université Amar Telidji - Département de génie mécanique, 2022 . - 71 p. ; 30 cm. + 1 disque optique numérique (CD-ROM). Option : Energetic (Énergétique) Langues : Anglais | Résumé : | Materials development is a common concern for materials scientists and industrialists who have an interest in meeting the new needs of new technologies. In many cases, the development of traditional or new materials involves a high temperature melting phase. This step is intended to produce the homogeneous reaction in liquid phase of the different components, and is a critical step with respect to the properties of the material. The melting, whatever the mode of heat production, is often at the origin of the degradation of the purity of the basic elements which compose the final material. Indeed, these elements interact in the liquid state and at high temperature by physical and chemical reactions with the walls of the crucibles necessary to contain them, which also usually involves imposing a stirring motion on the metal during the change in solid-liquid phase. However, the stirrer has many
advantages over the frame, it is not without disadvantages regarding the purity of the material produced by the introduction of the stirring elements in the liquid part. | | note de thèses : | Mémoire de master en génie mécanique |
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| MGM 02-122 | MGM 02-122 | Thése | BIBLIOTHEQUE DE FACULTE DE TECHNOLOGIE | théses (tec) | Disponible |
