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Shape Design of Internal Flow with Minimum Pressure Loss

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Stanitz in his classical paper on duct design presented a design for a deceleration free 90°-curved nozzle. For given inlet and outlet sections of a 2D curved nozzle, however, there is an infinite number of deceleration free duct shapes. This paper explains how these shapes are designed in an inviscid flow context, and provides insight into the optimum design in a viscous flow context. Viscous results, in both 2D and 3D examples, are given using a CFD program. The results show that inviscid flow data is valuable in the design; the energy losses are affected by the geometry of the flow passage, especially in high Reynolds number flows.
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Document Type: Research Article

Publication date: 2009-09-01

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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