Transcription of Chapter 4 Open Channel Flows - İTÜ
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Chapter 4 Open Channel Flows - İTÜ
Prof. Dr. At l BULU 1 Chapter 4 open Channel Flows Introduction When the surface of flow is open to atmosphere, in other terms when there is only atmospheric pressure on the surface, the flow is named as open Channel flow. The governing force for the open Channel flow is the gravitational force component along the Channel slope. Water flow in rivers and streams are obvious examples of open Channel flow in natural channels. Other occurrences of open Channel flow are flow in irrigation canals, sewer systems that flow partially full, storm drains, and street gutters.
2 Prof. Dr. Atıl BULU Figure 4.1 Mathematical definition of the Uniform Steady Flow is, 0, 0 1 2 0 x y t y y y y (4.1) y0 = Normal depth d) Non-Uniform Steady Flows: The water depth changes along the channel cross- sections but does not change with time at each every cross section with time.
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