Rotational and Axial Flow through the Gap between Eccentric Cylinders, of which the Outer One Rotates

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We previously reported the pressure drop measurements of the flow through the annulus formed by two eccentric cylinders, with the inner cylinder rotating and the outer one stationary. This paper studies the pressure distribution around an inner cylinder and the pressure drop in the annular gap between eccentric cylinders, of which the outer one rotates and the inner one is stationary, under fully developed conditions. The relations between friction factor λ and a few parameters such as axial-flow Reynolds number Re, rotating Reynolds number Rw, clearance ratio β and eccentricity ratio m, are investigated and compared with the previous results obtained for a rotating inner cylinder. And the effect of axial-flow Reynolds number Re on the pressure distribution is investigated at some rotating Reynolds numbers Rw, where the rotational flow without the axial one belongs to a laminar-flow region, either of transitional or turbulent type.

Journal

  • Bulletin of JSME

    Bulletin of JSME 17 (114), 1564-1571, 1974

    The Japan Society of Mechanical Engineers

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