Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/8589
Type: Artigo
Title: The drag coefficient of a sphere: An approximation using Shanks transform
Author(s)/Inventor(s): Mikhailov, Mikhail Dimitrov
Freire, Atila Pantaleão Silva
Abstract: Indisponível.
Abstract: An accurate model for the drag coefficient (CD) of a falling sphere is presented in terms of a non-linear rational fractional transform of the series of Goldstein (Proc. Roy. Soc. London A, 123, 225-235, 1929) to Oseen's equation. The coefficients of the six polynomial terms are improved through a direct fit to the experimental data of Roos and Willmarth (AIAA J., 9:285-290, 1971). The model predicts CD up to Reynolds number 100,000 with a standard deviation of 0.04. Results are compared with eight different formulations of other authors.
Keywords: Sphere drag
Oseen flow
Shanks transform
Subject CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Production unit: Núcleo Interdisciplinar de Dinâmica dos Fluidos
Publisher: Elsevier
In: Powder Technology
Volume: 237
Issue Date: 22-Dec-2012
DOI: 10.1016/j.powtec.2012.12.033
Publisher country: Brasil
Language: eng
Right access: Acesso Aberto
ISSN: 0032-5910
Appears in Collections:Engenharias

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