Print Email Facebook Twitter Feasibility of particle image velocimetry for low-speed unconventional vapor flows Title Feasibility of particle image velocimetry for low-speed unconventional vapor flows Author Head, A.J. (TU Delft Flight Performance and Propulsion) Colonna, Piero (TU Delft Flight Performance and Propulsion) Schrijer, F.F.J. (TU Delft Aerodynamics) Gallo, M. (TU Delft Flight Performance and Propulsion; Inholland University of Applied Sciences) Novara, M. (Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)) Date 2019 Abstract This work assesses the feasibility of the planar PIV technique to study the characteristics of a siloxane vapor D4. Titanium dioxide (TiO2) seeding particles were used to track the motion around a rotating disk in a low speed flow. Vector fields of natural convection (NC) and a superposition of NC and rotating flow were selected as exemplary cases. The particles were capable of tracing the flow since the calculated Stokes number St is 6.5×10-5. The quality of the experimental data is assessed by means of particle seeding density and particle image Signal to Noise ratio (S/N). The final results are deemed acceptable for an accurate assessment of the flow field. Rejected outliers are below 2.3% and the relative uncertainties corresponding to the average velocity fields are below 1%. Subject Low speed rotating organic vapor flowParticle image velocimetrySeeding techniqueSiloxane fluidsSeeding techniqueLow speed rotating organic vapor flow To reference this document use: http://resolver.tudelft.nl/uuid:27416007-edab-4780-aa82-6aab200b0988 DOI https://doi.org/10.1016/j.expthermflusci.2018.10.028 ISSN 0894-1777 Source Experimental Thermal and Fluid Science, 102, 589-594 Part of collection Institutional Repository Document type journal article Rights © 2019 A.J. Head, Piero Colonna, F.F.J. Schrijer, M. Gallo, M. Novara Files PDF 1_s2.0_S0894177718305181_main.pdf 4.48 MB Close viewer /islandora/object/uuid:27416007-edab-4780-aa82-6aab200b0988/datastream/OBJ/view