Micro-Bubbly Flows in Rotating Pipe Sections with Abrupt Expansion and Contraction
نویسندگان
چکیده
منابع مشابه
Micro-Bubbly Flows in Rotating Pipe Sections with Abrupt Expansion and Contraction∗
An investigation was carried out for swirling flow in a rotating pipe with highly viscous fluid containing micro-bubbles experimentally and numerically. In the numerical analysis, bubble trajectory of each bubble was calculated using resultant numerical flow field solutions. From experimental results, with an aid of the numerical simulation, data were obtained for the location of a stagnation p...
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IV. Pressure Drop Definition In our experiments we measure the total pressure drop across the axisymmetric abrupt contraction-expansion geometry. We then systematically correct this to report an ‘extra pressure drop’ associated with the contraction-expansion alone. Table 1 shows the axial distance of each possible pressure transducer location from the contraction plane. For clarity, it is usefu...
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I. Fluid Rheology In this note (I of IV) we summarize the rheological properties of the test fluid in shear and extension. The viscoelastic fluid consists of an 0.025 wt% solution of monodisperse polystyrene (PS) (Scientific Polymer Products, Inc.) with a polydispersity of 1.03. The polystyrene is dissolved in oligomeric styrene (Hercules Piccolastic A5) to yield a dilute solution with c/c* = 0...
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At the end of the sixties, it was shown that pressure waves in a bubbly liquid obey the KdV equation, the nonlinear term coming from convective acceleration and the dispersive term from volume oscillations of the bubbles. For a variable u, proportional to -p , where p denotes pressure, the appropriate KdV equation can be casted in the form ut 6uu~ + u ~ = 0. The theory of this equation predicts...
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ژورنال
عنوان ژورنال: JSME International Journal Series B
سال: 2004
ISSN: 1340-8054,1347-5371
DOI: 10.1299/jsmeb.47.564