DUCT STRUCTURE
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United States of America Patent
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app pub date -
Jul 12, 2017
filing date -
Jul 20, 2016
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Abstract
A duct structure including a fin having a downstream end surface extending between an inner surface of a duct and a downstream end of a top surface of the fin in a height direction of the fin. As a result, a vortex can be intentionally generated in a downstream of the downstream end surface of the fin. Since a pressure in the vortex is lower than a pressure in a surrounding portion of the vortex, the vortex can draw a fluid flow having flowed along the top surface of the fin to the vortex and can change the flow to a flow flowing along a portion of the inner surface of the duct located downstream of the fin. As a result, a flow separation from the inner surface of the duct can be suppressed.
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