Hassanzadeh,Y , , Kardan,N , , Kazemi,P , and Ayyari,S . "NUMERICAL EVALUATION OF PIERS SPACING EFFECT ON HYDRAULIC AND SEDIMENTARY PARAMETERS OF RIVER FLOWS USING BRI-STARS (CASE STUDY)", Sharif Journal of Civil Engineering, 32.2, 4.1, 2017, 71-80.