Determination of discharge coefficient for flow over one cycle compound trapezoidal plan form labyrinth weir
Idrees, Anees Kadhum, Al-Ameri, Riyadh and Das, Subrat 2016, Determination of discharge coefficient for flow over one cycle compound trapezoidal plan form labyrinth weir, International journal of civil engineering and technology, vol. 7, no. 4, Article number: IJCIET_07_04_027, pp. 314-328.
Weirs are common structure to regulate discharge and flow control inwater conveyance channels and hydraulic structures. Labyrinth weirsconsidered one of economical and effective methods to increase the efficiency of weirs that crest length of weirs increase without a related increase in structure width. Therefore, flow discharge will be increased. Compared to use compound weir, there are some benefits including the simultaneous passage of floating materials such as wood, ice, etc. Also, sedimentations are pass through compound weir. The trapezoidal Labyrinth weir is one of the combined models. In present study 15 physical models that discussion effect changes sidewall angle of labyrinth weir on discharge coefficient of flow over and through the compound trapezoidal one cycle Labyrinth weir. Also, it is developed design curves with various shapes and configurations. The researchshowed here mainly objectives at determining the coefficient of discharge for flow-over trapezoidal labyrinth weir by performing tests at wide range of values of side wall angles (α) from 6° to 35° and compound linear weir to be compared.
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