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Research on hydrokinetics characteristics of rotating pipe fluid in the crossed electric and magnetic field

Journal of Harbin Institute of Technology(New Series) 2007年第1期14卷 5-8页

作者：郭斌张鹏程树康 School of Materials Science and Engineering Harbin Institute of Technology School of Electrical Engineering and Automation Harbin Institute of Technology

The rotating pipe fluid in the crossed electric and magnetic field not only suffered the forces in the steady condition, but also suffered Coriolis force, centrifugal force because of rotation and electromagnetic volume force. The motion equation of fluid and the hydrokinetics equations of rotating pipe were described in the Cartesians coordinates. The equations showed that the solutions to hydrokinetics equations of rotating pipe in the crossed electric and magnetic electromagnetic field were highly complicated and numerical calculations were also astronomical. The pressure distribution and temperature distribution of one dimension were solved using the electromagnetic equations set. The results showed that the fluid in rotating pipe was in the asymmetrical pressure field and temperature field because it was in the energy exchange and thermo-electrical coupling course. The primary characteristic of flow course could be expressed using the proposed hydrokinetics equations.

关键词： crossed electric and magnetic electromagnetic fields rotating pipe hydrokinetics flow equations

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Low frequency oscillatory flow in a rotating curved pipe

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Journal of Zhejiang University Science 2003年第4期4卷 407-414页

作者：陈华军章本照苏霄燕 DepartmentofMechanics ZhejiangUniversityHangzhou310027China

The low frequency oscillatory flow in a rotating curved pipe was studied by using the method of bi parameter perturbation. Perturbation solutions up to the second order were obtained and the effects of rotation on the low frequency oscillatory flow were examined in detail. The results indicated that there exists evident difference between the low frequency oscillatory flow in a rotating curved pipe and in a curved pipe without rotation. During a period, four secondary vortexes may exist on the circular cross section and the distribution of axial velocity and wall shear stress are related to the ratio of the Coriolis force to centrifugal force and the axial pressure gradient.

关键词： Oscillatory flow Secondary flow Perturbation method rotating pipe

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