Rasha Yehia Mohamed <br/><br/>
Prediction of roughness coefficient for aged pipes using simulation models /  
 إستنتاج معامل الخشونة للمواسير القديمة باستخدام برامج التحليل الهيدروليكى 
Rasha Yehia Mohamed ; Supervised Hisham Saed Abdelhalim , Ehab Helmy Rozaik 
 - Cairo :   Rasha Yehia Mohamed ,   2014 
 - 86 P. :   plans ;   30cm 
<br/><br/>Thesis (M.Sc..) - Cairo University - Faculty of Engineering - Department of Civil Engineering 
<br/><br/> Head loss gradient is used to give an estimate for C factor for aged pipes. Equation of Colebrook and White for C factor determination based in age and final roughness height is entered in Watergems coding area to be calculated within Wategems interface. The chorine decay and C factor relationship is studied. The effect of C factor in leakage also falls under the scope of this research. The relation of diameter reduction in aged pipes diameter to the corresponding C factor is inferred 
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<br/><br/><label>Subjects--Index Terms: </label>Chlorine Leakage Roughness coefficient