Numerical modelling and analysis of external gear pumps by applying generalized control volumes

Shu Wang, Hisatoshi Sakura and Aditya Kasarekar

Mathematical and Computer Modelling of Dynamical Systems, 2011, vol. 17, issue 5, 501-513

Abstract: Components in gear pumps usually involve complex geometrical arrangements in order to achieve the desired performance. The use of lumped parametric models is considered the most accurate and effective method for investigation of the associated design issues. In this study, the numerical modelling approach based on the lumped parameters and control volume concepts is reviewed, especially for gear teeth within the meshing zone. To apply the approach to the entire gear pump, control volume concepts are generalized to all gear pockets and flow orifices with some reasonable assumptions. The assumptions include instantaneous angular positions, orifice transitions and imagined control volumes with internal flows. The fluid dynamics and pump performance, which even have the measurement difficulties, can be estimated to investigate and optimize the design parameters of gears by the model. A simulation example and its experimental results of a gear machine are presented to validate the proposed approach in this article.

Date: 2011
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Citations: View citations in EconPapers (3)

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DOI: 10.1080/13873954.2011.577556

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