8 0456 10 0452 h1 flow 12 slope p10122 the crump weir

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: h half-angle ? P10.121 Water flow in a rectangular channel is to be metered by a thin-plate weir with side contractions, as in Table 10.1b, with L 6 ft and Y 1 ft. It is desired to measure flow rates between 1500 and 3000 gal/min with only a 6-in change in upstream water depth. What is the most appropriate length for the weir width b? | e-Text Main Menu | Q where f Qmod f 1.035 0.817 H* 2 H* 1 4 0.0647 for 0.70 H*/H* 0.93, where H* denotes H1 2 1 V 2/(2g) kh for brevity. The weir is then double-gaged 1 to measure both H1 and H2. Suppose that the weir crest is 1 m high and 2 m wide. If the measured upstream and downstream water depths are 2.0 and 1.9 m, respectively, estimate the flow rate in gal/min. Comment on the possible uncertainty of your estimate. Textbook Table of Contents | Study Guide 706 Chapter 10 Open-Channel Flow P10.124 Water flows at 600 ft3/s in a rectangular channel 22 ft wide with n 0.024 and a slope of 0.1°. A dam increases the EES depth to 15 ft, as in Fig. P10.124...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online