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TECHNICAL PAPERS

Computational Fluid Dynamics Analysis of Turbulent Flow Within a Mechanical Seal Chamber

[+] Author and Article Information
Zhaogao Luan

Dow Chemical Endowed Chair in Rotating Machinery, Department of Mechanical Engineering, Louisiana State University, 2508 CEBA, Baton Rouge, LA 70803

M. M. Khonsari1

Dow Chemical Endowed Chair in Rotating Machinery, Department of Mechanical Engineering, Louisiana State University, 2508 CEBA, Baton Rouge, LA 70803khonsari@me.lsu.edu

1

Corresponding author.

J. Tribol 129(1), 120-128 (Jun 27, 2006) (9 pages) doi:10.1115/1.2401220 History: Received March 02, 2006; Revised June 27, 2006

Turbulent flow inside the seal chamber of a pump operating at high Reynolds number is investigated. The Kε turbulence model posed in cylindrical coordinates was applied for this purpose. Simulations are performed using the fractional approach method. The results of the computer code are verified by using the FLUENT and by comparing to published results for turbulent Taylor Couette flow. Numerical results of four cases including two rotational speeds with four flush rates are reported. Significant difference between the laminar and the turbulence flow in the seal chamber is predicted. The behavior of the turbulent flows with very high Reynolds number was also investigated. The physical and practical implications of the results are discussed.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Drawing of the mechanical seal installation

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Figure 2

Computational domain in centimeters

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Figure 3

Comparison of the numerical and experimental results of turbulent Taylor–Couette flow: (a) vector plot from numerical solution; and (b) experimental measurement by Ref. 10

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Figure 4

Validation for axial velocity at the outlet with 1.0gal∕min(63.1cm3∕s) of flush rate

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Figure 5

Validation for radial velocity at the outlet with 1.0gal∕min(63.1cm3∕s) of flush rate

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Figure 6

Validation for azimuthal velocity at the outlet with 1.0gal∕min(63.1cm3∕s) of flush rate

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Figure 7

Validation for vector plots with rotational speed of 1800rpm and flush rate of 1.0gal∕min(63.1cm3∕s): (a) FLUENT results; (b) FORTRAN code results

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Figure 8

Streamline plot for laminar flow behavior in the seal chamber with rotation of 3600rpm and flush in rate of 1.0gal∕min(63.1cm3∕s): (a) FLUENT results; (b) FORTRAN code results

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Figure 9

Streamline plot with rotation of 1800rpm and flush in rate: (a)0.5gal∕min(31.55cm3∕s); and (b)1.0gal∕min(63.1cm3∕s)

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Figure 10

Streamline plot with rotation of 3600rpm and flush in rate: (a)0.5gal∕min(31.55cm3∕s); (b)1.0gal∕min(63.1cm3∕s)

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Figure 11

Turbulence intensity contour plot with rotation of 1800rpm and flush influx rate 1.0gal∕min(63.1cm3∕s)

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Figure 12

Streamline plot with rotation of 18,000rpm and flush in rate 1.0gal∕min(63.1cm3∕s)

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