Heterogeneous Drag Reduction Concepts and Consequences
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This paper deals with the nature of the heterogeneous drag reduction which occurs in turbulent pipe flows when a concentrated polymer solution is injected into the pipe center. According to earlier concepts, the achieved drag reduction is due to a direct, large-scale interaction of the viscoelastic polymer thread with the turbulent flow field. The authors prove that the heterogeneous drag reduction originates exclusively from agglomerates of dissolved polymer molecules present in the flow.
2016 ◽
Vol 2016
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pp. 1-8
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2019 ◽
Vol 39
(155)
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pp. 17-20
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2005 ◽
Vol 25
(Supplement1)
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pp. 237-240
1988 ◽
Vol 54
(497)
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pp. 37-44
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1986 ◽
Vol 52
(473)
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pp. 34-42
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2021 ◽
pp. 095765092110632
2020 ◽
Vol 2020
(0)
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pp. J05105
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1985 ◽
Vol 51
(472)
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pp. 4265-4272
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