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A modified fractional step method of keeping a constant mass flow rate in fully developed channel and pipe flows

  • Thermal Engineering · Fluid Engineering · Energy and Power Engineering
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Abstract

The objective of this paper is to present a modified fractional step method of keeping a constant mass flow rate in spatially periodic flows, because original fractional step methods do not precisely keep the mass flow rate constant in time. In the modified method, the mean and fluctuating pseudo-pressure gradients are separately obtained at each time step. This method is successfully applied to channel and pipe flows and shown to be suitable for maintaining a constant mass flow rate in time.

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Authors and Affiliations

  1. National CRI Center for Turbulence and Flow Control Research, Institute of Advanced Machinery and Design, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, 151-742, Seoul, Korea

    Jongwoo You, Haecheon Choi & Jung Yul Yoo

Authors
  1. Jongwoo You
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  2. Haecheon Choi
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  3. Jung Yul Yoo
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Correspondence to Haecheon Choi.

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You, J., Choi, H. & Yoo, J.Y. A modified fractional step method of keeping a constant mass flow rate in fully developed channel and pipe flows. KSME International Journal 14, 547–552 (2000). https://doi.org/10.1007/BF03185657

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  • DOI: https://doi.org/10.1007/BF03185657

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