Modeling near-wall effects in axially rotating pipe flow by elliptic relaxation

Modeling Near-Wall Effects in Axially Rotating Pipe Flow by Elliptic Relaxation

AIAA Journal ◽

10.2514/2.527 ◽

1998 ◽

Vol 36 (7) ◽

pp. 1164-1170 ◽

Cited By ~ 18

Author(s):

B. A. Pettersson ◽

H. I. Andersson ◽

A. S. Brunvoll

Keyword(s):

Pipe Flow ◽

Wall Effects ◽

Elliptic Relaxation ◽

Rotating Pipe Flow ◽

Near Wall

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Modeling near-wall effects in second-moment closures by elliptic relaxation

International Journal of Heat and Fluid Flow ◽

10.1016/0142-727x(96)00031-8 ◽

1996 ◽

Vol 17 (3) ◽

pp. 255-266 ◽

Cited By ~ 32

Author(s):

V. Wizman ◽

D. Laurence ◽

M. Kanniche ◽

P. Durbin ◽

A. Demuren

Keyword(s):

Wall Effects ◽

Second Moment ◽

Moment Closures ◽

Elliptic Relaxation ◽

Near Wall

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Near-wall effects in micro scale Couette flow and heat transfer in the Maxwell-slip regimes

Microfluidics and Nanofluidics ◽

10.1007/s10404-006-0132-5 ◽

2006 ◽

Vol 3 (4) ◽

pp. 437-449 ◽

Cited By ~ 8

Author(s):

Soumyo Roy ◽

Suman Chakraborty

Keyword(s):

Heat Transfer ◽

Couette Flow ◽

Wall Effects ◽

Micro Scale ◽

Flow And Heat Transfer ◽

Near Wall

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A new form of the elliptic relaxation equation to account for wall effects in RANS modeling

Physics of Fluids ◽

10.1063/1.1287517 ◽

2000 ◽

Vol 12 (9) ◽

pp. 2345-2351 ◽

Cited By ~ 29

Author(s):

Rémi Manceau ◽

Kemal Hanjalić

Keyword(s):

Wall Effects ◽

Relaxation Equation ◽

Elliptic Relaxation ◽

Rans Modeling ◽

New Form

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Assessing the Effects of Near Wall Corrections of the Force Acting on Particles in Gas-Solid Channel Flows

Volume 1: Symposia, Parts A and B ◽

10.1115/fedsm2005-77304 ◽

2005 ◽

Author(s):

Boris Arcen ◽

Anne Tanie`re ◽

Benoiˆt Oesterle´

Keyword(s):

Channel Flow ◽

Lift Force ◽

Particle Concentration ◽

Turbulent Channel Flow ◽

Shear Velocity ◽

Solid Particles ◽

Wall Region ◽

Wall Effects ◽

Strong Shear ◽

Near Wall

The importance of using the lift force and wall-corrections of the drag coefficient for modeling the motion of solid particles in a fully-developed channel flow is investigated by means of direct numerical simulation (DNS). The turbulent channel flow is computed at a Reynolds number based on the wall-shear velocity and channel half-width of 185. Contrary to most of the numerical simulations, we consider in the present study a lift force formulation that accounts for the weak and strong shear as well as for the wall effects (hereinafter referred to as optimum lift force), and the wall-corrections of the drag force. The DNS results show that the optimum lift force and the wall-corrections of the drag together have little influence on most of the statistics (particle concentration, mean velocities, and mean relative and drift velocities), even in the near wall region.

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Analogy between Developing Laminar Flows With Secondary Streams in Ducts. Curved Pipe Flow and Orthogonally Rotating Pipe Flow.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B ◽

10.1299/kikaib.59.1486 ◽

1993 ◽

Vol 59 (561) ◽

pp. 1486-1493 ◽

Cited By ~ 1

Author(s):

Hiroshi Ishigaki

Keyword(s):

Pipe Flow ◽

Laminar Flows ◽

Curved Pipe ◽

Rotating Pipe Flow

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Observations on the predictions of fully developed rotating pipe flow using differential and explicit algebraic Reynolds stress models

European Journal of Mechanics - B/Fluids ◽

10.1016/j.euromechflu.2005.03.004 ◽

2006 ◽

Vol 25 (1) ◽

pp. 95-112 ◽

Cited By ~ 7

Author(s):

Olof Grundestam ◽

Stefan Wallin ◽

Arne V. Johansson

Keyword(s):

Reynolds Stress ◽

Pipe Flow ◽

Stress Models ◽

Rotating Pipe Flow

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Wall Suction Effects on the Structure of Fully Developed Turbulent Pipe Flow

Journal of Fluids Engineering ◽

10.1115/1.2817507 ◽

1996 ◽

Vol 118 (1) ◽

pp. 33-39 ◽

Cited By ~ 4

Author(s):

D. Sofialidis ◽

P. Prinos

Keyword(s):

Shear Stress ◽

Pipe Flow ◽

Stokes Equations ◽

Turbulent Pipe Flow ◽

Turbulent Shear ◽

Experimental Measurements ◽

Wall Region ◽

Wall Suction ◽

Law Of The Wall ◽

Near Wall

The effects of wall suction on the structure of fully developed pipe flow are studied numerically by solving the Reynolds averaged Navier-Stokes equations. Linear and nonlinear k-ε or k-ω low-Re models of turbulence are used for “closing” the system of the governing equations. Computed results are compared satisfactorily against experimental measurements. Analytical results, based on boundary layer assumptions and the mixing length concept, provide a law of the wall for pipe flow under the influence of low suction rates. The analytical solution is found in satisfactory agreement with computed and experimental data for a suction rate of A = 0.46 percent. For the much higher rate of A = 2.53 percent the above assumptions are not valid and analytical velocities do not follow the computed and experimental profiles, especially in the near-wall region. Near-wall velocities, as well as the boundary shear stress, are increased with increasing suction rates. The excess wall shear stress, resulting from suction, is found to be 1.5 to 5.5 times the respective one with no suction. The turbulence levels are reduced with the presence of the wall suction. Computed results of the turbulent shear stress uv are in close agreement with experimental measurements. The distribution of the turbulent kinetic energy k is predicted better by the k-ω model of Wilcox (1993). Nonlinear models of the k-ε and k-ω type predict the reduction of the turbulence intensities u’, v’, w’, and the correct levels of v’ and w’ but they underpredict the level of u’.

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