FALLSEM2019-20_MEE1004_ETH_VL2019201001316_Reference_Material_I_05-Nov-2019_OpenChannelFlow.pdf - Fluid Mechanics MEE1004 Jayaprakash Narayan M Asst

FALLSEM2019-20_MEE1004_ETH_VL2019201001316_Reference_Material_I_05-Nov-2019_OpenChannelFlow.pdf

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Fluid Mechanics MEE1004 Jayaprakash Narayan M. Asst. Prof. (Senior) Dept. of Thermal & Energy Engg. SMEC Contact details: SJT 313-A-42 [email protected] Phone
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A branch of the Okavango River meanders through the Okavango Delta, Botswana.
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Natural and human-made open channel flows are characterized by a free surface open to the atmosphere.
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Types of Open Channel
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Flow in rivers, irrigation canals, drainage ditches and aqueducts are some examples for open channel flow. These flows occur with a free surface and the pressure over the surface is atmospheric. The surface actually represents the hydraulic grade line. In most cases water is the fluid encountered in open channel flow. While in closed conduits the flow is sustained by pressure difference, the driving force in open channel flow is due to gravity, and is proportional to the bed slope . The depth of flow is not restrained and this makes the analysis more complex. As most of the flow are large in scale and as viscosity of water is lower, Reynolds number are high. Hence
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