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International Journal of Fluid Mechanics Research

Publication de 6  numéros par an

ISSN Imprimer: 2152-5102

ISSN En ligne: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

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Flow Measurements and Simulation in a Model Centrifugal Pump Impeller

Volume 37, Numéro 2, 2010, pp. 149-161
DOI: 10.1615/InterJFluidMechRes.v37.i2.40
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RÉSUMÉ

This paper presents an experimental and a numerical investigation of a model centrifugal pump impeller operated across the entire flow rate range and for various rotation speeds. The experiments were carried out in a test rig specially designed and constructed in the Lab, along with the model impeller. The test section allows optical observation of the flow field and can accommodate impellers in a wide size range using an adaptive radial diffuser that preserves axisymmetric outflow conditions. The obtained data were validated against available measurements in a similar volute casing pump. The flow field through the impeller was also simulated by a fast, 2-dimensional numerical model. The algorithm solves the incompressible Reynolds-averaged Navier−Stokes equations using the control volume method and the k-ε turbulence model. The flow domain is discretized with a polar, unstructured Cartesian mesh that covers a periodically symmetric section of the impeller. Advanced numerical techniques for adaptive grid refinement and for handling the partly filled grid cells formed at the curved boundaries of the blades are also implemented. The numerical results reproduce the characteristic operation curves of the impeller for the net head, shaft power and hydraulic efficiency. Their agreement with the corresponding experimental data is satisfactory, encouraging the extension of the developed computation methodology for performance predictions and for design optimization in such impeller geometries.

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