Influence of flow speed on guided waves in a liquid filled pipe

Author

Bixing Zhang ; Hanyin Cui ; Jianzhong Shen ; Trevelyan, Jon

Author_Institution

State Key Lab. of Acoust., Inst. of Acoust., Beijing, China

fYear

2013

fDate

21-25 July 2013

Firstpage

182

Lastpage

185

Abstract

Liquid-filled pipes that are widely used in industries must be regularly inspected for the structure integrity. Elastic guided waves are suitable for long-range pipe inspections. In this paper, the influences of the flowing speed and temperature of the fluid flow on the propagation properties of guided waves in pipes filled with flowing high temperature liquid metals are investigated. The dispersion equation is theoretically derived applying coordinate transformations, and then simplified to get its approximation form, and finally numerically solved to obtain dispersion curves. The aim is to choose the suitable guided modes for nondestructive evaluation (NDE) of pipes, which are nonsensitive to the flow speed and the varying temperature of the fluid flow inside the pipe.

Keywords

elastic waves; elasticity; flow simulation; high-temperature effects; liquid metals; nondestructive testing; pipe flow; pipes; wave propagation; coordinate transformations; dispersion curves; dispersion equation; elastic guided waves; flow speed; fluid flow; guided wave propagation properties; high temperature liquid metals; liquid filled pipe; long-range pipe inspections; nondestructive evaluation; structure integrity; Couplings; Dispersion; Equations; Fluid flow; Fluids; Temperature; Temperature sensors; dispersion characteristics; guided wave; nondestructive evaluation; pipes filled with flowing fluid;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0047

Filename

6725241