{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW_9

# HW_9 - CE 451 Water Resource Engineering Home Work#9 10.14...

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

CE 451 Water Resource Engineering 4/21/2010 Home Work #9 10.14. Water flows steadily at 16.0 cfs in a very long triangular flume that has side slopes 1 on 1. The bottom of the flume is on a slope of 0.0035. At a certain section A the depth of flow is 2.00 ft. Is the flow at the section subcritical or supercritical? At another section B, 200 ft downstream from A the depth of flow is 2.5 ft. approximately what is the value of Manning’s n? Find y n . Under what conditions can this flow occur? 10.17 . The flow in a long 12-ft-wide rectangular channel that has constant bottom slope is 870 cfs. A computation using the manning equation indicates that the normal depth of flow for this flow rate is 6.3 ft. At a certain section A the depth of flow in the channel is 4.0 ft. will the depth of flow increase, decrease, or remains the same as one proceeds downstream from section A? Sketch a physical situation where this type of flow will occur. 10.23. A rectangular drainage channel is 16 ft wide and is to carry 500 cfs. The channel is
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}