Abstract
A PTA-technique for the in-plane determination of the three flow velocity vector components based on the defocused imaging of stray-particles has been investigated. The conventional setup for 2-D PTA has been modified by broadening the laser light-sheet to a width of approximately 1.5 mm and focusing the imaging optics in a plane in front of the laser light-sheet. Particles in the light-sheet are imaged out of focus and the image size of a particle therefore depends on its distance to the focal plane of the imaging optics. The increase of the particle image diameter within single particle tracks due to the defocusing was used to determine the velocity component perpendicular to the light-sheet. The results obtained with this technique in a well defined laminar air flow are in good agreement with LDV-data.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Adamczyk AA;Rimai L (1988) Reconstruction of a 3-dimensional flow field from orthogonal views of seed track video images. Exp Fluids 6: 380–386
Adrian RJ (1986) Image shifting technique to resolve directional ambiguity in double-pulsed velocimetry. Appl Opt 26: 3855
Barker DB;Fourney ME (1977) Measuring fluid velocities with speckle patterns. Opt Lett 1: 135–137
Cenedese A;Paglialunga A (1989) A new technique for the determination of the third velocity component with PIV, Exp Fluids 8: 228–230
Dinkelacker F;Schäfer M;Ketterle W;Wolfrum J;Stolz W;Köhler J (1992) Determination of the third velocity component with PTA using an intensity graded light sheet, Exp Fluids 13, 357–359
Durst F;Melling A;Whitelaw JH (1981) Principles and practice of Laser-Doppler Anemometry, Academic Press, London
Hinsch K;Hinrichs H;Kuhfahl G;Meinlschmidt P (1991): Holographic recording of 3-D flow configurations for particle image velocimetry, SPIE-Vol, 1602, 121–30
Hinsch K;Hinrichs H;Kuhfahl G;Meinlschmidt P (1990a) Particle image velocimetry (PIV) of 3-D flow configuration by holographic recording of a batch of light sheets, SPIE, Vol. 1319, 530–531
Hinrichs H;Hinsch K;Kuhfahl G;Meinlschmidt P (1990b) 3-D velocity registration from optically processed stereoscopic particle image velocimetry records. SPIE, Vol. 1319, 542–543
Kasagi N; Nishino K (1990) Probing turbulence with three-dimensional particle tracking velocimetry, Proc. of the Int. Symp. on Eng. Turb. Mod. and Meas, September 24–28, Dubrovnik
Köhler J; Gerblich K; Meinhardt P; Ziegler GFW (1990) 2-D flow velocity measurements under the condition of high straylight intensity using particle tracking anemometry, Intern. Symp. on Engineering Turbulence Modelling and Measurements, Dubrovnik, Croatia
Landreth CC;Adrian RJ;Yao CS (1988) Double pulsed particle image velocimeter with directional resolution for complex flows, Exp Fluids 6: 119–128
Landreth CC,Adrian RJ (1988) Measurement and refinement of velocity data using high image density analysis in particle image velocimetry, 4th Int. Symp. on Appl. of Laser Anemometry to Fluid Mechanics, Ladoan, Institute Superior Technico, 1096 Codex, Lisbon
Miles RB;Nosenchuck RB (1989) Three-dimensional quantitative flow diagnostics. In: Advances in Fluid Mechanics Measurements, ed. Gad-el-Hak M, Lecture Notes in Engineering, New York, Springer
Nino E; Gajdeczko BF; Felton PG (1992) Two-color particle image velocimetry applied to a single cylinder two-stroke engine, SAE Paper 922309
Peters F;Paikert B (1990) Particle image formation in speckle velocimetry tested by means of homogeneously condensed droplets. In: Flow visualization V, ed. Reznicek R, 72–77, Washington: Hemisphere
Reuss DL; Adrian RJ; Landreth CC; French DT; Fransler TD (1989a) Instantaneous planar measurements of velocity and large-scale vorticity and strain rate in an engine using particle imaging velocimetry, SAE Paper 890616
Reuss DL;Adrian RJ;Landreth CC (1989b) Two-dimensional velocity measurements in a laminar flame using particle imaging velocimetry, Combust Sci and Tech 67, 73–83
Reuss DL; Bradsley M; Felton PG; Landreth CC; Adrian RJ (1990) Velocity vorticity and strain-rate ahead of a flame measured in an engine using particle image velocimetry, SAE Paper 900053
Stolz W; Köhler J; Lawrenz W; Meier F; Bloss WH; Maly RR; Herweg R; Zahn M (1992) Cycle resolved flow field measurements using PIV movie technique in a SI Engine, SAE Paper 922354
Stolz W; Köhler J (1992) 3-D Particle Tracking Anemometry, 14th Task Leader Meeting of the International Energy Agency, Trondheim, June 1992
Willert CE;Gharib M (1992) Three-dimensional particle imaging with a single camera, Exp Fluids 12: 353–358
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stolz, W., Köhler, J. In-plane determination of 3D-velocity vectors using particle tracking anemometry (PTA). Experiments in Fluids 17, 105–109 (1994). https://doi.org/10.1007/BF02412811
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02412811