INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES
Mohamed, M. (2021). INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES. EKB Journal Management System, 16(60), 553-564. doi: 10.21608/auej.2021.187932
Mohamed I Mohamed. "INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES". EKB Journal Management System, 16, 60, 2021, 553-564. doi: 10.21608/auej.2021.187932
Mohamed, M. (2021). 'INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES', EKB Journal Management System, 16(60), pp. 553-564. doi: 10.21608/auej.2021.187932
Mohamed, M. INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES. EKB Journal Management System, 2021; 16(60): 553-564. doi: 10.21608/auej.2021.187932

INVESTIGATING THE IMPACT OF HALF PIPE BARRIERS ON HYDRODYNAMICS OF WAVES

Journal of Al-Azhar University Engineering Sector
Article 6, Volume 16, Issue 60, July 2021, Page 553-564  XML PDF (596.77 K)
Document Type: Original Article
DOI: 10.21608/auej.2021.187932
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Author
Mohamed I Mohamed email
Department of Civil Engineering,Faculty of Engineering, Al-Azhar University
Abstract
In the framework of the integrated coastal zone management (ICZM) project andimplementing innovative breakwaters (half pipes barrier) in Egypt, this research was initiated in order to determine their impact on hydrodynamics of waves, numerically. Primarily, literature in the field of breakwaters were assembled and scrutinized. A numerical model (Flow 3D) was selected to be implemented.  Several barriers, with different characteristics, were modeled and wave hydrodynamics properties (i.e. reflection and transmission) were designated.Furthermore, the velocity beneath and behind the barrier so as pressure were numerically modeled. The results were analyzed and presented on graphs. Furthermore the results were discussed, from which conclusions so as recommendations were obtained, where specific dimensions for the barrier were designated. Moreover, the research results indicated that higher velocities were recorded for deeper barrier draft.  In addition, the research results flagged-out that the more its draft, the greater is its efficiency and the less is the wave transmission. Moreover, theresultsindicated that the proposed barrier dissipates the energy of the oblique waves more than orthogonal waves by about 5%.Innovative about this investigation is the prioritization of implementing deeper drafts to help in reducing the wave height behind the barrier, which leads to an economic implementation of barriers. 
 
في إطار مشروع الإدارة المتکاملة للمناطق الساحلية وتنفيذ حواجز الأمووا المبتکورة )حواجز نصو الماسوورة( فوي
مصر ، بدأ هذا البحث لتحديد تأثيرها على الديناميکا المائية للأموا ، حسابيا. ففي المقام الأول ، توم تجميو الدراسوا
لتمثيل هذا النووع )Flow 3D( السابقه في مجال حواجز الأموا وتم فحص ماتم تجميعه. کما تم اختيار نموذ رقمي
من الحواجز، حيث تم نمذجة العديد من الحواجز ذا الخصائص المختلفة )الديناميکا المائية للأموا ( . وعلاوة علوى
ذلک، تم تسجيل السرعا تحت الحاجز وخلفه وکذا الضغط، عدديًا. وتم الحصول على النتائج وتحليلها وتمثيلها بيانيا.
علاوة على ذلک، تموت مناقشوة النتوائج والتوصول الوى اسوتنتاجا وتوصويا ، حيوث توم تحديود أبعواد تلوک الحوواجز.
بالإضافة إلى ذلک ، أوضحت نتائج البحث أنه کلما زاد غاطسه ، کلما زاد کفاءته وقول انتقوال الموجوة. والابتکاريوه
في هذا البحث، هو إعطاء الأولوية لتنفيذ حواجز أعمق لتقليل ارتفواع الموجوة خلو الحواجز، مموا يويد إلوى التنفيوذ
الاقتصاد لتلک الحواجز.
Keywords
Half pipe; Barriers; Transmission; Reflection; Numerical. نصف ماسورة، حواجز، انتقال، انعکاس
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