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Significant Difference Between Turbulence Characteristics of Unsteady Flows in Open Channels and Pipes

Author(s): Akihiro Kadota

Linked Author(s): Akihiro Kadota

Keywords: Mean velocity profile; Turbulent intensity; Reynolds stress; Friction velocity

Abstract: Compared with pipe flows, turbulent structures in unsteady open-channel fows have not been well understood as yet, because experimental equipment to generate unsteady open channel flows were hard to be constructed and because the measurements of turbulence of unsteady flume were also very difficult with conventional hot-film anemometers. The author succesfuly measured turbulent structures in unsteady open-channel flows with an LDA system. In this paper, the significant difference between turbulent structures in unsteady open-channel flows and in pipe flows is discussed

DOI:

Year: 1993

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