ABSTRACT
C Tropea Laser velocimetry encompasses all laser-based techniques for measuring one or more velocity components over one or more dimensions. Its most prominent area of application is for the measurement of fluid flow velocity, although the various techniques can easily be applied to the measurement of solid surfaces, dispersed two-phase flows or the surface of granular flows. Laser velocimetry has the important attributes of being non-intrusive and remote, which has allowed it to displace conventional probe-based techniques in many flow measurement applications. This is particularly true for complex turbulent flows, flows with separation and/or recirculation, flows with small dimensions or other flows in which probes would either disturb the flow or for which probe access is difficult.
