Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userStudy of artificial ventilation pipes in closed drains " bottom outlets of Tal-Hosh and Zeta dam model "
دراسة أنانبيب التهوية الاصطناعية في المصارف المغلقة " مفرغا سدي تل حوش وزيتا أنموذجاً "
287
0 0
0.0
(
0
)
Added by
Aِl-Baath University رسالة ماجستير
Publication date
2019
and research's language is
العربية
Created by
Shamra Editor
Ask ChatGPT about the research
أثناء جريان الماء في المصارف المغلقة بسرعات عالية يمكن أن ينخفض الضغط إلى القيمة التي تسبب ظاهرة الغليان البارد وما يتبعها من تشكل جيوب تكهفية خطرة كما تؤدي السرعات العالية إلى جذب الهواء المحيط وبالتالي حدوث ظاهرة التهوية التلقائية التي تلعب دوراً معاكساً لظاهرة التكهف ضمن بنية التيار , ودوراً سلبياً في إحداث جيوب تكهفية فوق سطح الماء.
During the flow of water in closed drains at high speeds, the pressure can drop to the value that causes the phenomenon of cold boiling and the subsequent formation of dangerous cavitational pockets. High speeds also lead to the attraction of the surrounding air and thus the occurrence of the phenomenon of spontaneous ventilation, which plays an opposite role to the phenomenon of cavitation within the structure of the stream, and a role Negatively in the creation of cavernous pockets above the surface of the water.
References used
Paulo C.F Erbisti, 2014 - Design of Hydaulic Gates . Consulting engineer UK London , Second Edition , P251-262
rate research
Read More
دراسة أنابيب التهوية الاصطناعية في المصارف المغلقة " مفرغا سدي تل حوش وزيتا أنموذجاً " : نصادف في المصارف المغلقة ذات الضاغط العالي نماذج خطرة للجريان تتجلى في سرعاتهاالعالية وما يرافقها من تغير البنية الهيدروليكية للتيار
Information Technology and systems theory with its powerful
mathematical techniques, such as modeling, simulation and optimization,
are very useful tools in the planning, development and management of
water resources. These techniques are even mor
e important in areas
suffering from limited water resources. Their application may contribute
efficiently to the optimal use of the available water resources. The author
has carried out, in cooperation with other researchers, pioneering
experiments of these techniques in Syria, mainly applied to Barada and
Fijeh springs in Damascus area. The present paper aims at presenting
parts of these experiments, study and analysis of the results, beside
revealing the advantage of expanding their application to similar
resources.
Banias River Basin is located in the middle of the Syrian coast between the Joubar and
Merqiah River Basins. Its catchment area is ) 97 ( km2, and its length is ( 24,5) km.
The research aims to get the optimal management of the available and non-ex
ploited water
resources of Banias Spring, using water evaluation and planning system WEAP. Research
methodology based on collecting data and proposing two scenarios, first: storing of Banias spring
water to provide the water requirement of Banias city, Second: replacing Sin Spring in order to
provide Banias Refinery water. The percentage of coverage is about 88% requirement in scenario
of water supply to Banias city, while differentiated during the year in scenario meet the water
requirement of Banias Refinery, which has reached 84% in the first six months and fallen in
October to 52%. Existing wells in the confined aquifer are used to cover the shortfall in the
requirement.
تتجّلى مشكلة البحث في الهدر المائي في الحوض، و التعدي على شبكة مياه الشرب، و عدم توزيع المياه بشكل متساوٍ بين الريف و المدينة. و عدم الاستثمار الأمثل للموارد المائية في الحوض.
هدف البحث إلى تحديد معايير الجريان النهري و إدارتها في الحوض، و قد اعُتمِ
د على العديد من العلاقات الإحصائية و الرياضية ذات الصلة الوثيقة بالبحث.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
