Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0047
