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Fall 2023
It is well known that long-chain polymers and surfactants can significantly reduce the skin-friction drag of turbulent liquid flows; a phenomenon often referred to as rheological drag reduction. However, it is unclear if the mechanism for drag reduction is common among different types of polymers...
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Spring 2020
A reduction in skin-friction drag can lead to lower energy consumption in variety of transportation vehicles, and consequently results in a smaller environmental impact. Several methods have been presented to reduce the skin-fiction and one of these methods is to introduce an air layer at the...
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Simulating Polymer Drag Reduction Using a Modified Mixing Length in Zero Pressure Gradient Boundary Layers
Download2022-06-01
White, J.J., Holloway, G.L., Jeans, T.L.
It is known that a small concentration of polymer introduced to the boundary layer can produce significant drag reduction for liquid flows. This effect has been studied extensively for internal flow and polymer injection in external flow, though much is still unknown about the underlying...