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VIBRATION OF A FLEXIBLE PIPE CONVEYING VISCOUS PULSATING FLUID FLOW

โœ Scribed by D.G. GORMAN; J.M. REESE; Y.L. ZHANG

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
209 KB
Volume
230
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

The non-linear equations of motion of a #exible pipe conveying unsteadily #owing #uid are derived from the continuity and momentum equations of unsteady #ow. These partial di!erential equations are fully coupled through equilibrium of contact forces, the normal compatibility of velocity at the #uid} pipe interfaces, and the conservation of mass and momentum of the transient #uid. Poisson coupling between the pipe wall and #uid is also incorporated in the model. A combination of the "nite di!erence method and the method of characteristics is employed to extract displacements, hydrodynamic pressure and #ow velocities from the equations. A numerical example of a pipeline conveying #uid with a pulsating #ow is given and discussed.

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