2007
DOI: 10.1103/revmodphys.79.883
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Simple viscous flows: From boundary layers to the renormalization group

Abstract: The seemingly simple problem of determining the drag on a body moving through a very viscous fluid has, for over 150 years, been a source of theoretical confusion, mathematical paradoxes, and experimental artifacts, primarily arising from the complex boundary layer structure of the flow near the body and at infinity.We review the extensive experimental and theoretical literature on this problem, with special emphasis on the logical relationship between different approaches. The survey begins with the developme… Show more

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Cited by 67 publications
(49 citation statements)
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References 96 publications
(265 reference statements)
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“…18 and 19, inertial effects should eventually regulate this divergence for macroscopic values of L, but this is not expected to be relevant for boxes on the order of microns or smaller. Including the effects of non-zero Reynolds numbers into mobility calculations can be difficult; 37 to our knowledge, no systematic attempt to do this for the membrane geometry has been made. )…”
Section: Prediction Of Diffusion Coefficients In the Periodic Boxmentioning
confidence: 99%
“…18 and 19, inertial effects should eventually regulate this divergence for macroscopic values of L, but this is not expected to be relevant for boxes on the order of microns or smaller. Including the effects of non-zero Reynolds numbers into mobility calculations can be difficult; 37 to our knowledge, no systematic attempt to do this for the membrane geometry has been made. )…”
Section: Prediction Of Diffusion Coefficients In the Periodic Boxmentioning
confidence: 99%
“…O valor para η que aparece naúltima linha da Tabela 3, auferido dos dados de SCS,é ligeiramente inferior aos que obtivemos e isso pode ser explicado pelo fato do intervalo de temperatura deles possuir uma temperatura média (23,9 • C) um pouco superiorà nossa Para verificarmos a qualidade dos nossos dados experimentais,é interessante a comparação do coeficiente de arrasto deles obtido com o presente na literatura e que pode ser descrito pela relação empírica de Mikhailov e Silva Freire [18], expressa pela equação (12).…”
Section: Análise Dos Resultadosunclassified
“…No entanto, a inclusão do termo de Proudman e Pearson [17], considerando os três termos na equação (11), leva a uma discordância ainda maior com os dados experimentais a partir de R d = 3 [3]. A dificuldade para se obter uma expressão adequada da força de arrasto para números de Reynolds não nulos, que possa ser fundamentada pela equação de Navier-Stokes,é descrita por Veysey II e Goldenfeld [12]. A causa fundamental dessa dificuldadé e que, em razão da geometria esférica envolvida, para qualquer número de Reynolds não nulo, a razão entre a aceleração convectiva e o termo viscoso da equação (1) divergeà medida que se afasta da esfera, inviabilizando o uso de métodos da teoria da perturbação e necessitando fazer uso de técnicas de renormalização.…”
Section: Número De Reynolds Força E Coeficiente De Arrastounclassified
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“…Attempts to enlarge the domain of validity of these series expansions have focused on completing the series, either by matching to a postulated high Reynolds number asymptote (see Proudman's appendix to ref. 15), or, more recently, using the renormalization group to reorganize terms in the expansion (16). Recent renormalization group approaches have yielded apparently more accurate approximations for drag on a sphere for 1 Յ Re Յ 10 (16).…”
mentioning
confidence: 99%