EXPERIMENTAL INVESTIGATIONS ON FLOW CHARACTERISTICS OF FEW PROTOTYPE HYDRAULIC STRUCTURES UNDER VARYING DISCHARGE CONDITIONS
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Date
2015
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AAU, Anand
Abstract
The major objective of this dissertation work was to evaluate hydrologic and hydraulic functioning of a couple of prototype hydraulic structure as used in natural channels of small agricultural watersheds, by generating some of the basic information & other relevant
parameters for area under study. The aim is to learn and realize true operations and functioning of such hydraulic structures under a flume condition with predetermined scientific objectives as elaborated in thesis. Physical model study play vital role in planning and designing of hydraulic structures. A vast review was done on updated progress on hydraulic structure and their relevant monitoring and evaluations in hydraulic flume as well as real channel flow conditions. The standard tilting flume facilities available in newly developed hydraulics lab of College of Agricultural Engineering and Technology (CAET), Godhra was effectively utilized for evaluation of above cited hydraulic structures under varied sets of discharges and channel bed conditions. The discharges inside the hydraulic flumes were varying in between 0.5 to 5 L/s in majority of experimental runs. Similarly the channel bed slopes were kept varying in between 0.5 to 2 percent longitudinal slopes. Efforts are made to derive the real limits of flow parameters, flow regimes, and all associated flow conditions. Also the values of Coefficient of Discharge (Cd) for five specific hydraulic structures are attempted here with an effort to further extend its applicability to similar ungauged situations. Not only the values of Cd are derived, but certain alternate predictive equations in this regards too also synthesized in this study.
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Keywords
agriculture, engineering, INVESTIGATIONS