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Partager le résultat de cette recherche Interroger des sources externesTransfert convectif dans une cavité totalement ou partiellement occupée par une matrice poreuse en ETL ou HETL / Abderrahim Bourouis
Titre : Transfert convectif dans une cavité totalement ou partiellement occupée par une matrice poreuse en ETL ou HETL Type de document : texte imprimé Auteurs : Abderrahim Bourouis, Auteur ; Abdeslam Omara, Auteur Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 131 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Convection Mixte Conjuguée Convection Naturelle Milieu Poreux Hors Équilibre Thermique Local Phase Solide Phase Fluide Volumes Finis Conjugate Mixed Convection Natural Convection Porous Medium Local Thermal non Equilibrium Solid Phase Fluid Phase Finite-Volume Method ??? ????? ????? ??? ????? ??? ??????? ??????? ??????? ??? ???? ??? ??? ?????? ???????? Index. décimale : 530 Physique Résumé : In this work, a numerical study of convective heat transfer in confined fluid and porous media was considered. The fluid flow is governed by the Navier–Stokes equations in the fluid region whereas the Darcy–Brinkman–Forchheimer model in the porous region. The finite volume method is used in order to discrete the governing equations, and the SIMPLE algorithm is used to treat the coupling pressure-velocity.
Initially, the first application is to examine the effects of the Richardson number (Ri = 0.1, 1, 10) and thermal conductivity ratio (Rk = 0.1, 1, 10, 100) on the heat transfer by conjugate mixed convection and conduction in a lid-driven enclosure with thick vertical porous layer. The left vertical moving wall of enclosure takes two different directions, (upward or downward moving wall). In this study, the compression of isotherms in the porous layer is observed at low conductivity ratio, while at large conductivity ratio, isotherms span the fluid filled part of the enclosure. It is also observed that average Nusselt numbers along the right hot wall and along the fluid-porous layer interface tend to zero at large and low thermal conductivity ratio, respectively.
For the second application, we have considered a thermal non-equilibrium approach on
natural convection in a square porous cavity with partial active vertical walls. Depending on the location of hot part and cold part, respectively on the left and right side walls, two cases are considered: Upper-Lower and Lower-Upper active walls. The two equations model is used to take into account separately local temperatures of the fluid and the solid. The effect of the Rayleigh number, Darcy number, inter-phase heat transfer coefficient and modified conductivity ratio is examined. The obtained results reveal that the location of the hot and cold parts on the vertical side walls has a significant influence on the flow structure and the rate of heat transfer within the enclosure.
Diplôme : Doctorat en sciences En ligne : ../theses/physique/BOU6987.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10407 Transfert convectif dans une cavité totalement ou partiellement occupée par une matrice poreuse en ETL ou HETL [texte imprimé] / Abderrahim Bourouis, Auteur ; Abdeslam Omara, Auteur . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2016 . - 131 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Convection Mixte Conjuguée Convection Naturelle Milieu Poreux Hors Équilibre Thermique Local Phase Solide Phase Fluide Volumes Finis Conjugate Mixed Convection Natural Convection Porous Medium Local Thermal non Equilibrium Solid Phase Fluid Phase Finite-Volume Method ??? ????? ????? ??? ????? ??? ??????? ??????? ??????? ??? ???? ??? ??? ?????? ???????? Index. décimale : 530 Physique Résumé : In this work, a numerical study of convective heat transfer in confined fluid and porous media was considered. The fluid flow is governed by the Navier–Stokes equations in the fluid region whereas the Darcy–Brinkman–Forchheimer model in the porous region. The finite volume method is used in order to discrete the governing equations, and the SIMPLE algorithm is used to treat the coupling pressure-velocity.
Initially, the first application is to examine the effects of the Richardson number (Ri = 0.1, 1, 10) and thermal conductivity ratio (Rk = 0.1, 1, 10, 100) on the heat transfer by conjugate mixed convection and conduction in a lid-driven enclosure with thick vertical porous layer. The left vertical moving wall of enclosure takes two different directions, (upward or downward moving wall). In this study, the compression of isotherms in the porous layer is observed at low conductivity ratio, while at large conductivity ratio, isotherms span the fluid filled part of the enclosure. It is also observed that average Nusselt numbers along the right hot wall and along the fluid-porous layer interface tend to zero at large and low thermal conductivity ratio, respectively.
For the second application, we have considered a thermal non-equilibrium approach on
natural convection in a square porous cavity with partial active vertical walls. Depending on the location of hot part and cold part, respectively on the left and right side walls, two cases are considered: Upper-Lower and Lower-Upper active walls. The two equations model is used to take into account separately local temperatures of the fluid and the solid. The effect of the Rayleigh number, Darcy number, inter-phase heat transfer coefficient and modified conductivity ratio is examined. The obtained results reveal that the location of the hot and cold parts on the vertical side walls has a significant influence on the flow structure and the rate of heat transfer within the enclosure.
Diplôme : Doctorat en sciences En ligne : ../theses/physique/BOU6987.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10407 Exemplaires
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Titre : منهج التغيير في فكر سيد قطب Type de document : texte imprimé Auteurs : عبد القادر تومي ; عبد الرزاق قسوم, Directeur de thèse ; جامعة بوزريعة, Editeur scientifique Année de publication : [د.ت] Importance : 232 ورقة Note générale : 1 نسخة موجودة في قاعة المطالعة 2 نسخ موجودة في مخزن المكتبة المركزية Langues : Arabe (ara) Tags : ???? ??????? ??? ??? Index. décimale : 100 فلسفة Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=8185 منهج التغيير في فكر سيد قطب [texte imprimé] / عبد القادر تومي ; عبد الرزاق قسوم, Directeur de thèse ; جامعة بوزريعة, Editeur scientifique . - [د.ت] . - 232 ورقة.
1 نسخة موجودة في قاعة المطالعة 2 نسخ موجودة في مخزن المكتبة المركزية
Langues : Arabe (ara)
Tags : ???? ??????? ??? ??? Index. décimale : 100 فلسفة Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=8185 Exemplaires
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Titre : أصول النحو عند ابن جني دراسة في كتابه : الخصائص و المحتسب Type de document : texte imprimé Auteurs : رشيد حليم ; محمد خان, Directeur de thèse ; جامعة باجي مختار, Editeur scientifique Année de publication : 1999 Importance : 202 ورقة Note générale : 1 نسخة موجودة في مخزن المكتبة المركزية Langues : Arabe (ara) Tags : ????? ??? ??? Index. décimale : 810 أدب عربي Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=7292 أصول النحو عند ابن جني دراسة في كتابه : الخصائص و المحتسب [texte imprimé] / رشيد حليم ; محمد خان, Directeur de thèse ; جامعة باجي مختار, Editeur scientifique . - 1999 . - 202 ورقة.
1 نسخة موجودة في مخزن المكتبة المركزية
Langues : Arabe (ara)
Tags : ????? ??? ??? Index. décimale : 810 أدب عربي Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=7292 Exemplaires
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Titre : الفلسفة السياسية عند إبن رشد Type de document : texte imprimé Auteurs : لخضر مدبوح ; جامعة الجزائر, Editeur scientifique ; أبو عمران الشيخ, Directeur de thèse Année de publication : 1991 Importance : 217 ورقة Note générale : 1 نسخة موجودة في قاعة المطالعة 2 نسخ موجودة في مخزن المكتبة المركزية Langues : Arabe (ara) Tags : ????? ??????? ??? ??? Index. décimale : 100 فلسفة Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=8189 الفلسفة السياسية عند إبن رشد [texte imprimé] / لخضر مدبوح ; جامعة الجزائر, Editeur scientifique ; أبو عمران الشيخ, Directeur de thèse . - 1991 . - 217 ورقة.
1 نسخة موجودة في قاعة المطالعة 2 نسخ موجودة في مخزن المكتبة المركزية
Langues : Arabe (ara)
Tags : ????? ??????? ??? ??? Index. décimale : 100 فلسفة Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=8189 Exemplaires
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Titre : Le bassin-versant de la seybouse (Algérie orientale) : hydrologie et amenagement des eaux Type de document : texte imprimé Auteurs : Abdelaziz Louamri, Auteur ; Azzedine Mebarki, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Note générale : 2 copies imprimées disponibles Langues : Français (fre) Tags : ????? ?????? ????? ??? ??? ??? ??? ??????? rain liquid flow sediment transport modeling mapping planning Seybouse wadi basin pluies débits liquides transports solides modélisation cartographie aménagement bassin de l’oued Seybouse Index. décimale : 711 (Aménagement du territoire) Résumé : The surface hydrology deals with problems of both quantitative and qualitative runoff. Three major themes were addressed in this research on the hydrology of the watershed of the river in eastern Algeria (Seybouse):
- Rainfall (annual rainfall and maximum daily rainfall) and automatic mapping;
- The liquid flows in wadis observed at hydrometric stations highlighting the terms of the water balance, the variability of inflow at different timescales and the importance of flood events. Also, water management is studied through dams and water transfers; - Finally, the sediment transport wadis, modeling in relation to liquid flows and their impact on siltation of dams.
The basin, with an area of 6745 km2, consists of very different physical and climatic environments: semi-arid in south (High Plains) and sub-humid north (Tell) draining rivers with very different flows. Rains, punctually known vary from 230 mm at Aioun Settara raining station in the High Plains to 867 mm at Mechroha raining station in the basin of the Oued Mellah with extremes that mapping helped to develop. Data
analysis, geostatistics, and the digital terrain model (DTM), have allowed spatialization (automatic mapping) information "rain" over several periods.
Rates observed at gauging stations over the period 1971/72-1987/88 shows the variations of annual runoff ranging from 23 mm to Station Moulin Rochefort in the High Plains to 196 mm at Bouchegouf gauging station in the south- Tellian, the flow rate ranging from 6.3 to 26.4% and the flow deficit from 336.3 to 545.7 mm per year for the same basins. In times of flood for the river basin to Seybouse Mirbeck, the
instantaneous flow rate reached 1236 m3 / s at December 31, 1984. Modeling, starting from the maximum daily rainfall mapping has allowed the estimation of maximum daily flows and peak flows leading to the sub-basin of the Bouhamdane River.
Mobilization of surface water is carried by dams (two large dams, four small dams and sixty dams). But the very growing water needs in the basin can be satisfied by transfer involving very large volumes of water.
The study of sediment transport and their interannual variability and inter-monthly is realized by a comparative analysis of the sub-basins. The case study of the river basin Bouhamdane allowed proposing laws Qs-QL and bi-frequency curves and quantification of sedimentation dam Hammam Debagh inflow since December 1987.
This research helped contribute to deepen the knowledge of Algerian hydrology of an important exoréic watershed in Eastern Algeria (Oued Seybouse). It was an opportunity to apply statistical methods, interpolation (kriging) and automatic mapping.Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/LOU6428.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9458 Le bassin-versant de la seybouse (Algérie orientale) : hydrologie et amenagement des eaux [texte imprimé] / Abdelaziz Louamri, Auteur ; Azzedine Mebarki, Directeur de thèse . - constantine (Route ain el bey, Algérie) : Université Constantine 1, 2013.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : ????? ?????? ????? ??? ??? ??? ??? ??????? rain liquid flow sediment transport modeling mapping planning Seybouse wadi basin pluies débits liquides transports solides modélisation cartographie aménagement bassin de l’oued Seybouse Index. décimale : 711 (Aménagement du territoire) Résumé : The surface hydrology deals with problems of both quantitative and qualitative runoff. Three major themes were addressed in this research on the hydrology of the watershed of the river in eastern Algeria (Seybouse):
- Rainfall (annual rainfall and maximum daily rainfall) and automatic mapping;
- The liquid flows in wadis observed at hydrometric stations highlighting the terms of the water balance, the variability of inflow at different timescales and the importance of flood events. Also, water management is studied through dams and water transfers; - Finally, the sediment transport wadis, modeling in relation to liquid flows and their impact on siltation of dams.
The basin, with an area of 6745 km2, consists of very different physical and climatic environments: semi-arid in south (High Plains) and sub-humid north (Tell) draining rivers with very different flows. Rains, punctually known vary from 230 mm at Aioun Settara raining station in the High Plains to 867 mm at Mechroha raining station in the basin of the Oued Mellah with extremes that mapping helped to develop. Data
analysis, geostatistics, and the digital terrain model (DTM), have allowed spatialization (automatic mapping) information "rain" over several periods.
Rates observed at gauging stations over the period 1971/72-1987/88 shows the variations of annual runoff ranging from 23 mm to Station Moulin Rochefort in the High Plains to 196 mm at Bouchegouf gauging station in the south- Tellian, the flow rate ranging from 6.3 to 26.4% and the flow deficit from 336.3 to 545.7 mm per year for the same basins. In times of flood for the river basin to Seybouse Mirbeck, the
instantaneous flow rate reached 1236 m3 / s at December 31, 1984. Modeling, starting from the maximum daily rainfall mapping has allowed the estimation of maximum daily flows and peak flows leading to the sub-basin of the Bouhamdane River.
Mobilization of surface water is carried by dams (two large dams, four small dams and sixty dams). But the very growing water needs in the basin can be satisfied by transfer involving very large volumes of water.
The study of sediment transport and their interannual variability and inter-monthly is realized by a comparative analysis of the sub-basins. The case study of the river basin Bouhamdane allowed proposing laws Qs-QL and bi-frequency curves and quantification of sedimentation dam Hammam Debagh inflow since December 1987.
This research helped contribute to deepen the knowledge of Algerian hydrology of an important exoréic watershed in Eastern Algeria (Oued Seybouse). It was an opportunity to apply statistical methods, interpolation (kriging) and automatic mapping.Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/LOU6428.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9458 Exemplaires
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