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Reynolds Number - Blayne Sarazin: Difference between revisions
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An open channel or duct behaves similarly to the previously mentioned closed duct. The only thing that changes in this case is the wetted perimeter. The following problem explores the small difference between open and closed ducts: | An open channel or duct behaves similarly to the previously mentioned closed duct. The only thing that changes in this case is the wetted perimeter. The following problem explores the small difference between open and closed ducts: | ||
The perfect example of an open duct that transports a fluid is an aqueduct, which was used to transport water for various reasons. Imagine we have an aqueduct with the dimensions shown in Figure 3 and we want to calculate the Reynold's number for water flowing at 50 meters per second. | |||
The hydraulic diameter for this case is simply | |||
[[Image:open_duct_example.png|150px|left|thumbnail|'''Figure 3''': Example open duct geometry.]] | [[Image:open_duct_example.png|150px|left|thumbnail|'''Figure 3''': Example open duct geometry.]] | ||
