Robust object-oriented formulation of directed thermofluid stream networks

Dirk Zimmer

Mathematical and Computer Modelling of Dynamical Systems, 2020, vol. 26, issue 3, 204-233

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.

Date: 2020
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DOI: 10.1080/13873954.2020.1757726

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