Effects of Guide Vanes in Transition Flow from a Round Pipe to a Rectangular Chamber

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Conference Proceeding
Proceedings of the 2011 ASME International Mechanical Engineering Congress & Exposition, 2011, pp. 1 - 7
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In an effort to design a rectangular-box chamber for model testing and flow visualization, to be fitted into an existing horizontal axial-flow pump circuit, shown in Fig.1[1], a computational study has been conducted into the flow of water as it expands from a 400-mm-diameter round pipe into a 3-Drectangular- box configuration. The geometry is asymmetric; the chamber's bottom is aligned with the pipe's bottom, but the pipe's top is expanded into the chamber's top, shown in Fig. 2. A commercial Computational Fluid Dynamics (CFD) software package is used to simulate the isothermal turbulent flow, using the standard K-epsilon turbulence model. The study examines the benefits of the guide vane in reducing the transition region's length and producing the desirable flow pattern in the test chamber.
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