Flow over Weirs

EXPERIMENT 1 immaterial AND TRIANGULAR WEIRS Aim To check over the discharge- soul characteristics of a pert weir and 60° and 90° angular weirs. Equipment Preparation. bone the equipment to the following condition in accordance with plane section 4.2 Weirs                 P6225 simple-minded Weirs Accessories       P6107 Hook sens and Scale Experimental Procedure. 1. | Start the nitty-gritty and tardily open the terrace regulating valve until the water direct r individuallyes the cover of the weir and appraise the water take to take care the datum level.| 2. | specify the judicatory regulating valve to give the maiden required address level of some 10mm. Measure the hang prize employ the volumetrical tank or the rotameter. trace the shape of the nappe.| 3. | amplification the merge by opening the work bench regulating valve to represent up heads above the datum level in steps of approximately 10mm until the regulating valve is experty open. At each terminal work out measure the flow rate and observe the shape of the nappe.| 4. | accomplishment the regulating valve, stop the nitty-gritty and then replace the weir with the undermentioned weir to be mental testinged. Repeat the test procedure.| 5. | Repeat the test with the 3rd base weir. | Results and Analysis. 1. | personality the results on a copy of the results sheet.

Record every observations of the shape and chartic symbol of nappe paying particular tutelage to whether the nappe was clinging or sprung clear, and of the end compressing and general change in shape.| 2. | fleck a graph of loge Q against loge H for each weir. Measure the slopes and the solicits. think the coefficient of discharge from the intercept. Express the kindred in the midst of the head and the discharge in the striving: for each weir. From the intercept betoken the coefficients of discharge and from the slopes of the graphs confirm that the baron is approximately 2.5 for the rectangular weir and 1.5 for the triangular weirs.| 3. | Compare the results with those predicted using the empirical...If you need to get a full essay, order it on our website: Ordercustompaper.com

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