Circular Far-Wake Flow behind a Sphere: Solutions to the Second Order

被引：3

作者：

Bose, Sujit K. ^{[1
]}

Dey, Subhasish ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Civil Engn, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF ENGINEERING MECHANICS | 2016年 / 142卷 / 01期

关键词：

Fluid dynamics; Hydraulics; Hydrodynamics; Wakes; REYNOLDS-NUMBERS; TURBULENT; SIMULATION; BODY;

D O I：

10.1061/(ASCE)EM.1943-7889.0000977

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The theory of hydrodynamic phenomenon of the axisymmetric circular far-wake flow behind a sphere is revisited in this study by the generalized similarity solution of the governing momentum equations to obtain the solutions to the second order in respect of the inverse distance from the sphere center. In case of a laminar wake, the nonlinear equation is derived from the Navier-Stokes equations; while in case of a turbulent wake, it is obtained from the Reynolds averaged Navier-Stokes (RANS) equations and the eddy viscosity concept. The first-order Oseen-type linearization yields solutions well known in the literature, but the second-order solutions obtained in this study are novel. (C) 2015 American Society of Civil Engineers.

引用

页数：6

共 19 条

[1] Attenuation of the wake of a sphere in an intense incident turbulence with large length scales [J].

Amoura, Zouhir ;

Roig, Veronique ;

Risso, Frederic ;

Billet, Anne-Marie .

PHYSICS OF FLUIDS, 2010, 22 (05) :1-9

[2] Response of the wake of an isolated particle to an isotropic turbulent flow [J].

Bagchi, P ;

Balachandar, S .

JOURNAL OF FLUID MECHANICS, 2004, 518 :95-123

[3] INCOMPRESSIBLE LAMINAR AXISYMMETRIC FAR WAKE [J].

BERGER, SA .

JOURNAL OF MATHEMATICS AND PHYSICS, 1968, 47 (03) :292-&

[4] The growth of a cylinder wake in turbulent flow [J].

Eames, I. ;

Jonsson, C. ;

Johnson, P. B. .

JOURNAL OF TURBULENCE, 2011, 12 (39) :1-16

[5] AXISYMMETRIC LAMINAR WAKE BEHIND A SLENDER BODY OF REVOLUTION [J].

HAMA, FR ;

PETERSON, LF .

JOURNAL OF FLUID MECHANICS, 1976, 76 (JUL14) :1-15

[6] Adaptive simulation of the subcritical flow past a sphere [J].

Hoffman, Johan .

JOURNAL OF FLUID MECHANICS, 2006, 568 :77-88

[7] Flow past a sphere up to a Reynolds number of 300 [J].

Johnson, TA ;

Patel, VC .

JOURNAL OF FLUID MECHANICS, 1999, 378 :19-70

[8] GROWTH OF THE TURBULENT INNER WAKE BEHIND 3-IN-DIAM SPHERES [J].

KNYSTAUTAS, R .

AIAA JOURNAL, 1964, 2 (08) :1485-1486

[9] Wake of a spherical bubble or a solid sphere set fixed in a turbulent environment [J].

Legendre, D ;

Merle, A ;

Magnaudet, J .

PHYSICS OF FLUIDS, 2006, 18 (04)

[10]

Oseen C.W., 1927, Neuere Methoden und Ergebnisse in der Hydrodynamik

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