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Numerical design of a Knudsen pump with curved channels operating in the slip flow regime

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Abstract

A numerical procedure has been developed for modeling 2D thermal creep flows with Fluent®. Complete first order velocity slip, including thermal creep and walls curvature effects, as well as temperature jump, boundary conditions, are implemented via C routines. After validation on benchmark flows, the technique is used for designing a Knudsen pump with curved microchannels and it is demonstrated that this micropump can be efficient in the slip flow regime.

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Acknowledgments

The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under Grant Agreement GASMEMS no 215504. The authors thank Prof. Luc Mieussens and Prof. Kazuo Aoki for the provided comments and tabulated data from their published works.

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Authors and Affiliations

  1. INSA, UPS, Mines Albi, ISAE, ICA (Institut Clément Ader), Université de Toulouse, 135 Avenue de Rangueil, 31077, Toulouse, France

    Vlasios Leontidis, Jie Chen, Lucien Baldas & Stéphane Colin

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  1. Vlasios Leontidis
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  2. Jie Chen
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  3. Lucien Baldas
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  4. Stéphane Colin
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Correspondence to Stéphane Colin.

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Leontidis, V., Chen, J., Baldas, L. et al. Numerical design of a Knudsen pump with curved channels operating in the slip flow regime. Heat Mass Transfer 50, 1065–1080 (2014). https://doi.org/10.1007/s00231-014-1314-4

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  • DOI: https://doi.org/10.1007/s00231-014-1314-4

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