TY - JOUR ID - 10070 TI - Turbulent characteristics in flow subjected to bed suction and jet injection as a pier-scour countermeasure JO - Journal of Hydraulic Structures JA - JHS LA - en SN - 2345-413X AU - Soltani Gerdefaramarzi, Somayeh AU - Afzalimehr, Hossein AU - Chiew, Yee-Meng AU - Ghasemi, Mohsen AD - Department of Water Engineering, Isfahan University of Technology, Isfahan, Iran. AD - Department of Water Engineering, Isfahan University of Technology, Isfahan, Iran AD - School of Civil and Environmental Engineering, Nanyang Technological University, Singapore. Y1 - 2013 PY - 2013 VL - 1 IS - 1 SP - 1 EP - 10 KW - Pier scour KW - jet KW - Turbulence KW - bed suction KW - injection DO - 10.22055/jhs.2013.10070 N2 - The effect of a combined system of the bed suction and jet injection as a pier-scour countermeasure on the turbulent flow field is studied in a laboratory flume using an Acoustic Doppler Velocimeter (ADV). The three components of the velocities in the vertical symmetry plane in the equilibrium scour hole in front and rear of the pier under 3-jet injections and bed suction rate Qs/Q0 = 2%located between 0