1. Ph.D. Student, Faculty of Engineering, Irrigation and Hydraulics Dept., Alexandria Univ., El-Horia St., 21544 Alexandria, Egypt (corresponding author).
2. Associate Professor, Faculty of Engineering, Irrigation and Hydraulics Dept., Alexandria Univ., 21544 Alexandria, Egypt.
3. Professor, Faculty of Engineering, Irrigation and Hydraulics Dept., Alexandria Univ., 21544 Alexandria, Egypt.