Summary
A mechanistic model of heat transfer in a dispersed steam and droplet flow has been compared with experimental data from a multi-rod facility designed to allow detailed measurements of droplet size and velocity distribution. For the conditions analysed the droplet velocity was reasonably well described by a single drop equation of motion, but agreement would be improved by incorporation in the model of observed droplet coalescence and breakup processes. Nevertheless, the steam desuperheating effect of the drops was well predicted by use of the Lee-Ryley steam-drop heat transfer correlation. It was found that enhancement of steam convective cooling by droplet-induced turbulence can be significant and modelling refinements in this area are needed.
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© 1985 ECSC, EEC, EAEC, Brussels and Luxembourg
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Clare, A.J., Fairbairn, S.A. (1985). Droplet Dynamics and Heat Transfer in Dispersed Two Phase Flow. In: Skupinski, E., Tolley, B., Vilain, J. (eds) Safety of Thermal Water Reactors. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4972-0_8
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DOI: https://doi.org/10.1007/978-94-009-4972-0_8
Publisher Name: Springer, Dordrecht
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