... is the Reynolds number based on the bulk flow velocity ( U ¯ b ) and the duct integral length scale ( D ) . The hot-wire anemometer was used to carry out measurements close to the circular duct exit; however, the laser-Doppler anemometry was utilized for the rectangular duct measurements. Particular...

...) varies from 0 to 7. The experimental investigation is based on laser-Doppler anemometry measurements and particle-image velocimetry (PIV) within a water channel. The analysis of the experimental results mainly concerns the location of the separation points as defined by various criteria. It is found...

... by results of direct numerical simulations of wall-bounded turbulent flows of Newtonian and non-Newtonian fluids and by experiments carried out, under well-controlled laboratory conditions, in a refractive index-matched pipe flow facility using state-of-the art laser-Doppler anemometry. Theoretical...

... near the best efficiency operating point. Laser Doppler anemometry velocity measurements were performed for both axial and circumferential velocity components at the runner outlet. A suitable analytical representation of the swirling flow has been developed taking the discharge coefficient...

... is gained from this study. The advanced second-order model is confirmed to be the adequate level of closure to describe such complex flows. 17 11 2004 30 03 2005 rotors stators confined flow turbulence laser Doppler anemometry pressure transducers flow control rotational flow...

... measurement aerospace engineering laser Doppler anemometry sprays regression analysis optimisation neural nets computational fluid dynamics Atomization processes are inherently complex involving close coupling of both thermodynamic state of the fluid, as well as the design of the injector...

... October 25, 2002; revised manuscript received April 5, 2004. Associate Editor: M. W. Plesniak. 25 October 2002 05 April 2004 11 03 2005 surface roughness flow measurement mixing channel flow boundary layer turbulence turbulent diffusion laser Doppler anemometry viscosity...

...Angelo Algieri; Sergio Bova; Carmine De Bartolo The characteristics of the seeding particles, which are necessary to implement the laser Doppler anemometry (LDA) technique, may significantly influence measurement accuracy. LDA data were taken on a steady-flow rig, at the entrance of the trumpet...

... turbulence channel flow laser Doppler anemometry two-phase flow mixing Turbulent, particle laden shear flows in air are commonplace in a wide range of applications, including industrial conveyance processes, pulverized coal combustion, pollution control systems...

... fluctuations were measured by a laser Doppler anemometry (LDA) system. It was found that the maximum liquid velocity in a downward two-phase flow could occur off the pipe centerline at relatively low liquid flow rates and this observation is consistent with other researchers’ results. The comparisons between...

... Editor: M. V. O¨tu¨gen. 20 March 2003 05 January 2004 12 07 2004 jets laser Doppler anemometry flow measurement flow simulation vortices fluctuations flow instability pipe flow Bluff-body flows are encountered in many fields of practical interest. In the case...

...E. Konstantinidis; S. Balabani; M. Yianneskis The unsteady turbulent flow field in a staggered array of cylinders with streamwise and transverse spacing to diameter ratios of 2.1 and 3.6, respectively, was studied experimentally by means of laser-Doppler anemometry for a Reynolds number of 2300...

.... Katz. 17 Jan 2003 16 Sept 2003 19 02 2004 wakes drops two-phase flow water turbulence laser Doppler anemometry mixing vortices flow separation velocity measurement flow measurement The transport of aerosols in the wake of bluff bodies is important for many...

..., as is typically found within the approach flow of these systems, can also affect the time dependent jet and flow field generated by the port. Measurements using both hot wire anemometry (HWA) and a three component Laser Doppler Anemometry (LDA) system were therefore used to characterize the flow field. Cross...

... Jan. 28, 2003. Associate Editor: M. V. O¨tu¨gen. 07 Jan 2002 28 Jan 2003 27 08 2003 turbulence jets stratified flow velocity laser Doppler anemometry Using the equation of continuity, one can show profiles of mean radial velocity in a turbulent jet to be “double S...

... received by the Fluids Engineering Division Apr. 4, 2002, revised manuscript received Mar. 3, 2003. Associate Editor: M. V. O¨tu¨gen. 04 Apr 2002 03 Mar 2003 27 08 2003 heat exchangers heat transfer channel flow vortices laser Doppler anemometry velocity laminar to turbulent...

... Engineering Division December 5, 2001; revised manuscript received November 13, 2002. Editor: S. Ceccio. 05 December 2001 13 November 2002 09 06 2003 drag boiling bubbles two-phase flow rotational flow flow visualisation undercooling laser Doppler anemometry Two-phase...

... . Manuscript received by the Fluids Engineering Division Mar. 1, 2000; revised manuscript received June 17, 2002. Associate Editor: P. W. Bearman. 01 Mar 2000 17 June 2002 22 01 2003 channel flow turbulence rotational flow vortices heat transfer turbines laser Doppler anemometry...

.... pumps velocity measurement laser Doppler anemometry flow separation The internal flow that develops in a centrifugal pump impeller is exceedingly complex, involving both streamline curvature, system rotation, separation, and turbulence effects. Furthermore, the flow is often influenced...

... Engineering Division August 2, 2000; revised manuscript received April 2, 2002. Associate Editor: J. Bridges. 02 August 2000 02 April 2002 19 08 2002 pulsatile flow vortices fluctuations laser Doppler anemometry wakes Vortex shedding occurs at discrete frequencies inside...