2006•The proceedings of the JSME annual meetingOpen access

4231 Characteristics of Turbulent Swirling Flow in a Straight Pipe : Flow Change in Weak Swirling Flow

Masayasu Hatazawa

Abstract

The flow changes in weak swirling flow, which are different from those of non-swirling pipe flow, are described. Tangential velocity of a combined vortex upstream changes to that of a forced vortex downstream. Axial velocity distributions which are constant in the entrance region gradually develop into non-swirling pipe flow's downstream. Also, turbulence which is controlled upstream develops far downstream.

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Key concepts: Turbulence, Mechanics, Flow (mathematics), Vortex, Open-channel flow, Pipe flow, Downstream (manufacturing), Isothermal flow