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Smith III, L.D., Corner, M.E., Liu, B., Dzodzo, B., Paramonov, D.V., Beaslley, D.E., Langford, H.M. and Hollowey, M.V. (2002) Benchmarking Computational Fluid Dynamics for Application to PWR Assembly. Proceeding of the 10th ICONE Conference, Arlington, 14-18 April 2002, 823-830.

has been cited by the following article:

• TITLE: Limitations in the Use of the Equivalent Diameter

  AUTHORS: Licia Del Frate, Fabio Moretti, Giorgio Galassi, Francesco D’Auria

  KEYWORDS: Hydraulic Diameter, Pressure Losses, Accuracy

  JOURNAL NAME: World Journal of Nuclear Science and Technology, Vol.6 No.1, January 7, 2016

  ABSTRACT: This paper deals with the inaccuracy assessment of the friction pressure loss estimation based on Darcy formula combined with an equivalent hydraulic diameter and a friction factor valid for circular pipes when applied to a square rod bundle. The assessment has been done by comparing the analytical and semi-empirical predictions with two different CFD codes results: CFX and NEPTUNE_CFD. Two different analytical approaches have been considered: the whole-bundle and sub-channel approaches, both for laminar and turbulent flow conditions. Looking at results, it is reasonable to assume that an error in the range of 11% - 23% is likely when using equivalent diameter in the laminar regime. In the case of turbulent regime, the equivalent diameter works better and the error is in the range between a few percent and ~12%.