Ultrasonic Doppler method for velocity profile measurement in fluid dynamics and fluid engineering

Determining the viscous behavior of non-Newtonian fluids in a flume using a laminar sheet flow model and Ultrasonic Velocity Profiling (UVP) system

“…Ultrasonic Velocity Profiling (UVP) for mechanical measurement of flowing fluids was initially developed by Takeda (1986;1995;1999), albeit initially this technique was used in medical science measuring blood flow by means of Doppler sonography way back in the 1960's, as described by Kuttruff (1991). UVP is accepted as an important tool for measuring flow ABCM profiles in opaque liquids in research and engineering and it has been previously applied in complex geometries such as stirred tanks (Bouillard et al, 2001;Ein-Mozaffari and Upreti, 2009), contractions (Ouriev and Windhab, 2003;Kotzé et al, 2011), liquid metal target of neutron spallation source configuration (Takeda and Kikura, 2002), cylindrical hydrocyclone (Bergström and Vomhoff, 2004) as well as diaphragm valves (Kotzé et al, 2011).…”

Experimental Methods for Quantitative Analysis of Thermally Driven Flows

“…By measuring the time taken for the echo to return, the source of the reflection signal can be localized. The Doppler frequency shift of the reflected signal carries information about flow velocity (see Takeda 1999). By repetition of the ultrasound pulses with continuously shifting time delay, a velocity profile along the beam direction is measured.…”

Main effects on the accuracy of Pulsed-Ultrasound-Doppler-Velocimetry in the presence of rigid impermeable walls

“…The use of pulsed emissions in Pulsed Ultrasound Doppler Velocimetry (PUDV) has extended UDV to other fields and has opened the way to new measuring techniques in fluid dynamics. More recently, PUDV was applied to study fluid flow by various investigators, such as Alfonsi et al [1], Brito et al [2], Eckert and Gerbeth [3], Garbini et al [5], Kikura et al [9,10], Takeda [14][15][16], Wells [17], as well as Xu and Aidun [19]. In the majority of these studies, the emitted acoustic field and the returning echo propagate through a wall.…”