Research Article

Effect of Shear on Ultrasonic Flow Measurement Using Nonaxisymmetric Wave Modes

Figure 6

(Color online) Comparison of the attenuation coefficient of the first four axisymmetric modes (“1st,” “2nd,” “3rd,” and “4th”) propagating in the downstream (a) and upstream (b) directions in the laminar (“lam”) and turbulent (“tur”) velocity profiles.
912404.fig.006a
(a)
912404.fig.006b
(b)