Hossam Mahmoud Elsayed <br/><br/>
Hydraulic conveyance and performance of circular perforated collectors /  
 الاداء الهيدروليكى والناقلية للمجمعات المستديرة المثقبة 
Hossam Mahmoud Elsayed ; Supervised Ahmed Wagdy Abdeldayem , Morsy Anwar Morsy , Mohamed Hassan Elgamal 
 - Cairo :   Hossam Mahmoud Elsayed ,   2009 
 - 93P. :   facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering 
<br/><br/> Field subsurface laterals (referred to in the title as collectors) are usually designed based on the ratio of area of perforations to total surface area and Empirical formulae to determine the distance between laterals. Several controlling factors are usually ignored including : pipe length , ratio of area of perforations to cross sectional area, hole diameter, optimal perforation ratio 
<br/><br/>
<br/><br/><label>Subjects--Index Terms: </label>Hole Diameter Laterals Subsurface drain