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Robust object-oriented formulation of directed thermofluid stream networks

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  • Dirk Zimmer

Abstract

Object-oriented formulation of thermal fluid streams often yields large non-linear equation systems whose numerical solution is difficult to achieve. This paper revisits the fundamental equations for thermal fluid streams and introduces a new term: the steady mass flow pressure $$\hat p$$pˆ. Using this term, the equations can be brought into a form where all non-linear computations are explicit. This enables a robust and object-oriented formulation of even complex architectures. The modelling of aircraft environmental control systems is presented as one possible application example.

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  • Dirk Zimmer, 2020. "Robust object-oriented formulation of directed thermofluid stream networks," Mathematical and Computer Modelling of Dynamical Systems, Taylor & Francis Journals, vol. 26(3), pages 204-233, June.
    • Handle: RePEc:taf:nmcmxx:v:26:y:2020:i:3:p:204-233
    DOI: 10.1080/13873954.2020.1757726
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    Cited by:

    1. Olmedo, L.E. & Schiffmann, J., 2023. "Towards a real-time capable hybrid-twin for gas-bearing supported high-speed turbocompressors," Energy, Elsevier, vol. 275(C).

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