This model represents the quasi-1D state of a real fluid flowing through a duct. It is an extension on the quasi-1D real fluid external flow model, which itself is an extension of the static real fluid model. Nusselt number correlations are used to estimate wall temperature and heat transfer rate for circular duct cross-sections assuming non-participating fully-developed flow.
Key sub-models are the static fluid state Static ⏎, the total fluid state Total ⏎, and the wall fluid state Wall ⏎.
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