Etude Expérimentale Des Structures D'écoulements Diphasiques Air-Eau En Co-Courant Dans Un Tube Circulaire Sous Diverses Conditions D'entrée
Lounès Tadrist, Salim Zeguai, صلاح شيخ
كلية الهندسة الميكانيكية وهندسة الطرائق-جامعة العلوم والتكنولوجيا هواري بومدين - الجزائر · الجزائر
الموضوعات
علوم تطبيقية وتكنولوجية
الملخص
L’étude expérimentale menée a pour objectif d’analyser les écoulements diphasiques air-eau dans une conduite en fonction des conditions d’entrée rigoureusement contrôlées. Les résultats obtenus permettent de mettre en évidence les différentes structures observées du mélange diphasique au niveau de la zone de mélange L/D=10 et en aval dans tube de test à L/D=420 de l’entrée. Pour les régimes étudiés, nous mettons en évidence les structures de bulles, poches et annulaire. Ces structures diffèrent selon l’orientation et la zone d’observation.. Des cartes d’écoulement sont proposées et révèlent des réarrangements des structures.
روابط وملفات
التعريف والنوع
- رقم الوثيقة
- fb4a4732-c5bf-4b37-a8af-29ed17e31ce8
- رقم العقد
- 0
- نوع الوسائط
- Crawler
- نوع المحتوى
- الرسائل العلمية
- صيغة المصدر
- رسائل دكتوراة
- نوع الملف
- word
- أسماء الملفات
- 1379677_1.doc, 1379677_2.pdf
بيانات النشر
- ألقاب المؤلفين
- [{"name_ar":" Lounès Tadrist","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Salim Zeguai","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"صلاح شيخ","title_ar":"اشراف","title_en":"Supervision"}]
- اللغة
- French
المصدر والدورية
- اسم المصدر
- Etude Expérimentale Des Structures D'écoulements Diphasiques Air-Eau En Co-Courant Dans Un Tube Circulaire Sous Diverses Conditions D'entrée
المحتوى والصفحات
- عدد الصفحات
- 0
- ترجمة الملخص
- The carried out experimental study aims at analyzing air–water two-phase flow patterns in a horizontal and vertical tube for laminar flow with carefully controlled conditions. An experimental test rig has been setup to produce a two-phase flow in a glass tube of 3 mm inner diameter with co-current air and water flows. Unlike previous studies, the investigated ranges of superficial velocity of the liquid and gas are from 0.78 x10-3ms-1to 79 x10-3ms-1and from 2.3 x10-3ms-1to 3.54 ms-1respectively. Flow visualizations are recorded with a high-speed camera in the entrance region at L/D = 10 corresponding to a mixing zone of the two phases and far downstream at L/D = 420. The results are used to highlight the flow patterns in both zones. Within the explored ranges of superficial velocities, several flow patterns were obtained namely bubbly, slug and annular flow pattern. More complex flow patterns were visualizedin the entrance region that evolve to fewer and simplified flow structure with smoother interfaces far downstream. Flow maps are drawn and proposed. They revealsome pattern rearrangements. A detailed description and the physical interpretation of the change in the flow structure between the two investigated zones are given in the paper.
- كلمات الباحثين
- Conditions d’entrée, inlet conditions, Mini and microchannels, Mini et microcanaux, Structures d’écoulements diphasiques, two-phase flow patterns, visualisation
إشراف وإعداد
- الإشراف
- Lounès Tadrist, صلاح شيخ
- الإعداد
- Salim Zeguai
الاقتباسات الببليوغرافية
APA
MLA