7.5 Experiment Procedure
7.5.1 Turn on water pump, open the flow control valve, let water flow through the nume
7.5.2 Adjust the flow of water into the flume to obtain heads h 5 mm, record the volume Flow rate(Q) using the direct reading flow meter, flow indicator or the measuring tank with a stopwatch
7.5.3 Readjust the flow of the water into the flume to obtain heads, with an increment of 5 mm then record the volume Flow rate(Q) weir
7.5.4 Please noted that for better results the level gate must be placed far enough upstream from the.
7.6 Result and Conclusion
7.6.1 Q against Q against log h and C alculand against h log Q axis and the
7.6.2 From the straightline graph of log Q log h find the intercept log h on the gradient m.
7.6.3 The relationship between Q and his then Q kh"
7.6.4 Calculate Cwy, calculated
7.6.5 Determine Cww.predcas using Fig. 7-2 and compare the result with actual Cww.calendates.
7.6.6 Is Cwt constant for this weir? If not, under what conditions does it vary?
7.6,7 What average value of C would you use for this weir? 7.6.8 How does the value for C using Fig 7-2 compare with your average value? V-notch
7.6.9 How do your values for k and m in the equation o kh" agree with the theoretical equation for weir?
7.7 Reference
Mechanics-Fundamentals and Application, p719 Yanus A. Congel, John M. Cimbala, AbriefIntroduction to Fluid