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@Article{Vatankhah:2014:JPSE, author = "Ali R. Vatankhah", title = "Comment on 'Gene expression programming analysis of implicit Colebrook-White equation in turbulent flow friction factor calculation'", journal = "Journal of Petroleum Science and Engineering", year = "2014", volume = "124", month = dec, pages = "402--405", ISSN = "0920-4105", DOI = "doi:10.1016/j.petrol.2013.12.001", URL = "http://www.sciencedirect.com/science/article/pii/S0920410513003495", keywords = "genetic algorithms, genetic programming, explicit approximations, Colebrook friction factor, Darcy-Weisbach equation, turbulent flow, fixed point method", abstract = "Recently, it is investigated \cite{Samadianfard2012} the potential of genetic programming based technique in estimating flow friction factor in comparison with the most currently available explicit alternatives to the Colebrook's equation. Using iterative solution of the Colebrook's equation which is accurate to six significant digits, this discussion showed that the proposed approximation by the author for friction factor is not very accurate (the errors increase up to 7.374percent), thus it is proposed two new accurate approximations (with maximum error less than 0.022percent and 0.008percent) for estimating flow friction factor.", }

Genetic Programming entries for Ali R Vatankhah