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THE SECOND ORDER EFFECTS OF THE TORSION ON THE SECONDARY FLOW IN A HELICAL PIPE[J]. Chinese Journal of Theoretical and Applied Mechanics, 1990, 22(5): 610-618. DOI: 10.6052/0459-1879-1990-5-1995-990
Citation: THE SECOND ORDER EFFECTS OF THE TORSION ON THE SECONDARY FLOW IN A HELICAL PIPE[J]. Chinese Journal of Theoretical and Applied Mechanics, 1990, 22(5): 610-618. DOI: 10.6052/0459-1879-1990-5-1995-990
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THE SECOND ORDER EFFECTS OF THE TORSION ON THE SECONDARY FLOW IN A HELICAL PIPE

  • 浙江大学力学系 310027

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  • A steady incompressible viscous flow in a helical pipe with lowReynolds number (R < 17/ε~(1/ε) ) is investigated by the perturbation method and the usage of helical coordinate system. A second order solution is fully presented. Results show that the torsion of the pipe has turning and deforming effects on the secondary vortices. As Reynolds number increases from, two vortices of the secondary flow turn around a left-right position to an up-down position.
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