Abstract—Spur dikes are structures that often be utilized for three main purposes, such as increasing water level, river bank protection, and sedimentation. This type of construction's use for a long time shows its usefulness and good features. Experimental investigation on flow pattern around 3 spur dikes in clear water with 2-D velocimeter has been achieved. These experiments have been accomplished in 3 different occasions of series of spur dikes (the first spur dike at 30 degrees, 45 degrees, and 90 degrees). In each experiment, flow pattern has been measured from 20 degrees before and 20 degrees after spur dike. Also bed topography has been determined in all cases and in obvious distance. In this paper bed shear stress, exist vortexes and flow pattern has been surveyed and analyzed, furthermore interaction between flow pattern and bed variations has been mentioned. Results showed that by increasing the position of spur dikes to the downstream the length of separation zone decreases, and also the width of separation zone remain almost constant.
Index Terms—Bank protection, flow pattern, sedimentation, spur dikes, vortex, water level.
S. A. Salamatian and M. Karimaee Tabarestaniare are with Shahab Danesh Institute of Higher Education, Qom, Iran (e-mail: Amin.salamatian@gmail.com, M.karimaee@aut.ac.ir).
M. Forghani is with Tarbiat Modares University, Tehran, Iran (e-mail: m.forghani@mekpco.com).
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Cite: S. A. Salamatian, M. Forghani, and M. Karimaee Tabarestani, "Flow Pattern and Stress Distribution around Three Spur Dike in Ninety inety Degree Bend ," International Journal of Engineering and Technology vol. 8, no. 6, pp. 462-467, 2016.
