0
TECHNICAL PAPERS

Control of Volumetric Flow-Rate of Ball Valve Using V-Port

[+] Author and Article Information
Ming-Jyh Chern, Chih-Cheng Wang

Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan

J. Fluids Eng 126(3), 471-481 (Jul 12, 2004) (11 pages) doi:10.1115/1.1760536 History: Received April 08, 2003; Revised November 08, 2003; Online July 12, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.

References

Hutchison, J. W., 1976, ISA Handbook of Control Valves, Instrument Society of America, Pittsburgh, the 2nd Ed.
Merati,  P., Macelt,  M. J., and Erickson,  R. B., 2001, “Flow Investigation Around a V-Sector Ball Valve.” J. Fluids Eng., 123, pp. 662–671.
Davis,  J. A., Stewart,  M., 2002, “Predicting Globe Control Valve Performance-Part II: Experimental Validation,” J. Fluids Eng., 124, pp. 778–783.
Chern, M. J., and Wang, C. C., “Performance Test and Flow Visualization of Ball Valve.” Submitted to Journal of Fluids Engineering.
Kerh,  T., Lee,  J. J., and Wellford,  L. C., 1997, “Transient Fluid-Structure Interaction in a Control Valve,” Journal of Fluids Engineering, 119, pp. 354–359.
van Lookeren Campagne,  C., Nicodemus,  R., de Bruin,  G. J., and Lohse,  D., 2002, “A Method for Pressure Calculation in Ball Valves Containing Bubbles.” Journal of Fluids Engineering, 124, pp. 765–771.
Davis,  J. A., Stewart,  M., 2002, “Predicting Globe Control Valve Performance-Part I: CFD Modeling,” Journal of Fluids Engineering, 124, pp. 772–777.
Huang,  C., and Kim,  R. H., 1996, “Three-Dimensional Analysis of Partially Open Butterfly Valve Flows,” Journal of Fluids Engineering, 118, pp. 562–568.
Richard, C. F. and John, H. S., 1988, Fundamentals of Air Pollution Engineering, Prentice Hall, New-Jersey, pp. 290–357.
Launder,  B. E., 1989, “Second-moment Closuer and Its Use in Modelling Turbulent Industrial Flows.” Int. J. Numer. Methods Fluids, 9, pp. 963–985.
Tennekes, H. and Lumely, J. L., 1972, A First Course in Turbulence, MIT Press, Cambridge, pp. 59–65.
Kirik, M. J. and Driskell, L. R., 1986, Flow Manual for Quarter-Turn Valves. Rockwell International Co.

Figures

Grahic Jump Location
Schematic diagram of the experiment apparatus: (a) the closed-loop water tunnel system (b) test section including the acrylic ball valve and the V-port
Grahic Jump Location
Pictures of V-ports with various angles. The ratio of the open, AV, of a V-port relative to the opening of a ball valve without a V-port is proportional to the angle, θ, as shown in (c)
Grahic Jump Location
The 3-D computational mesh including the piping system, the ball valve, and the V-port
Grahic Jump Location
Grid size independency tests for cases with 90 deg, 60 deg and 30 deg V-ports. R is the radius of the circular pipe and r refers to the y-direction. (a) The axial velocity profile at the section 2D in front of the valve (b) the axial velocity profile 6D behind the valve
Grahic Jump Location
Velocity fields at various sections
Grahic Jump Location
Flow patterns of computational results at Re=0.64×105 and α=0 deg
Grahic Jump Location
Flow patterns of computational results at Re=0.64×105 and α=20 deg
Grahic Jump Location
Schematic flow pattern in the valve flow
Grahic Jump Location
Flow patterns at Re=0.64×105 and α=0 deg
Grahic Jump Location
Flow patterns at Re=0.64×105 and α=20 deg
Grahic Jump Location
Loss coefficient of 90 deg V-port
Grahic Jump Location
Loss coefficient of 60 deg V-port
Grahic Jump Location
Loss coefficient of 30 deg V-port
Grahic Jump Location
Effect of various V-ports on loss coefficient. Results shown are obtained from experiments
Grahic Jump Location
Flow Coefficient of 90 deg V-port
Grahic Jump Location
Flow Coefficient of 60 deg V-port
Grahic Jump Location
Flow Coefficient of 30 deg V-port
Grahic Jump Location
Effect of various V-ports on flow coefficient
Grahic Jump Location
Cavitation index of 90 deg V-port
Grahic Jump Location
Cavitation index of 60 deg V-port
Grahic Jump Location
Cavitation index of 30 deg V-port
Grahic Jump Location
Effect of various V-ports on cavitation index

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In