In the conventional practice of design of canal drops, long length of inlet and outlet transitions are provided for improving performance. They are very costly and their hydraulic performance too is not satisfactory. Analytical and experimental studies were undertaken by the author to find an economic and innovative method of design. Optimum fluming ratio and optimum length of transitions are found both for economy as well as good performance. An innovative and economic stilling basin with rapidly diverging side walls and adversely sloping floor which act simultaneously as energy dissipater and expanding transition has been recommended. An example has been worked out to illustrate the design procedure of a typical canal drop.
Canal drop, Fluming, Transition, Energy Dissipation, Optimum Length, Efficiency
