Matches in SemOpenAlex for { <https://semopenalex.org/work/W2034368317> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2034368317 endingPage "1058" @default.
- W2034368317 startingPage "1046" @default.
- W2034368317 abstract "Particle image velocimetry (PIV) is a measurement technique which is well adapted to the study of the structure of turbulent flows, as it allows us to obtain quantitative information on the spatial structure of the velocity field. This contribution presents an experimental approach to characterize the measurement noise of a PIV system and the spatial response of such a method. This approach is based on a specific spectral analysis of the velocity vector field deduced from several PIV experiments. This study was done in two steps. The first step was to measure the noise level of PIV and to determine a model for the PIV transfer function from a series of displacement fields measured in a quiet liquid. This model shows the effect of the interrogation window size and introduces a spectral noise density which is constant for a given recording set-up. The second step was to compute spectra from velocity fields obtained in a turbulent boundary layer in a plane parallel to the wall. These spectra show that PIV behaves as a band pass filter. This series of experiments allows us to build a model for the prediction of the PIV spectrum knowing the real one. This model confirms that the PIV noise is white. It allows us to optimize the interrogation window size in order to obtain the best compromise between the spectral response and the spatial resolution. The rms value of the noise can be estimated from the noise density, allowing us to quantify the measurement accuracy. The improvement of sub-pixel window shift is also discussed, leading to a small decrease in the noise level. An analysis is proposed to identify the main sources of noise: particles cut by the border of the interrogation window, isolated particles, etc." @default.
- W2034368317 created "2016-06-24" @default.
- W2034368317 creator A5010890715 @default.
- W2034368317 creator A5013072851 @default.
- W2034368317 creator A5028781010 @default.
- W2034368317 date "2004-05-14" @default.
- W2034368317 modified "2023-10-14" @default.
- W2034368317 title "PIV optimization for the study of turbulent flow using spectral analysis" @default.
- W2034368317 cites W1985367233 @default.
- W2034368317 cites W2004761778 @default.
- W2034368317 cites W2012595437 @default.
- W2034368317 cites W2041754533 @default.
- W2034368317 cites W2046407023 @default.
- W2034368317 cites W2100463679 @default.
- W2034368317 cites W2106604270 @default.
- W2034368317 cites W2118944048 @default.
- W2034368317 cites W2148306792 @default.
- W2034368317 cites W2169150909 @default.
- W2034368317 cites W4231806005 @default.
- W2034368317 doi "https://doi.org/10.1088/0957-0233/15/6/003" @default.
- W2034368317 hasPublicationYear "2004" @default.
- W2034368317 type Work @default.
- W2034368317 sameAs 2034368317 @default.
- W2034368317 citedByCount "172" @default.
- W2034368317 countsByYear W20343683172012 @default.
- W2034368317 countsByYear W20343683172013 @default.
- W2034368317 countsByYear W20343683172014 @default.
- W2034368317 countsByYear W20343683172015 @default.
- W2034368317 countsByYear W20343683172016 @default.
- W2034368317 countsByYear W20343683172017 @default.
- W2034368317 countsByYear W20343683172018 @default.
- W2034368317 countsByYear W20343683172019 @default.
- W2034368317 countsByYear W20343683172020 @default.
- W2034368317 countsByYear W20343683172021 @default.
- W2034368317 countsByYear W20343683172022 @default.
- W2034368317 countsByYear W20343683172023 @default.
- W2034368317 crossrefType "journal-article" @default.
- W2034368317 hasAuthorship W2034368317A5010890715 @default.
- W2034368317 hasAuthorship W2034368317A5013072851 @default.
- W2034368317 hasAuthorship W2034368317A5028781010 @default.
- W2034368317 hasConcept C106131492 @default.
- W2034368317 hasConcept C107551265 @default.
- W2034368317 hasConcept C112633086 @default.
- W2034368317 hasConcept C115961682 @default.
- W2034368317 hasConcept C120665830 @default.
- W2034368317 hasConcept C121332964 @default.
- W2034368317 hasConcept C154945302 @default.
- W2034368317 hasConcept C15744967 @default.
- W2034368317 hasConcept C168110828 @default.
- W2034368317 hasConcept C196558001 @default.
- W2034368317 hasConcept C207857233 @default.
- W2034368317 hasConcept C24890656 @default.
- W2034368317 hasConcept C31972630 @default.
- W2034368317 hasConcept C41008148 @default.
- W2034368317 hasConcept C542102704 @default.
- W2034368317 hasConcept C57879066 @default.
- W2034368317 hasConcept C76155785 @default.
- W2034368317 hasConcept C99498987 @default.
- W2034368317 hasConceptScore W2034368317C106131492 @default.
- W2034368317 hasConceptScore W2034368317C107551265 @default.
- W2034368317 hasConceptScore W2034368317C112633086 @default.
- W2034368317 hasConceptScore W2034368317C115961682 @default.
- W2034368317 hasConceptScore W2034368317C120665830 @default.
- W2034368317 hasConceptScore W2034368317C121332964 @default.
- W2034368317 hasConceptScore W2034368317C154945302 @default.
- W2034368317 hasConceptScore W2034368317C15744967 @default.
- W2034368317 hasConceptScore W2034368317C168110828 @default.
- W2034368317 hasConceptScore W2034368317C196558001 @default.
- W2034368317 hasConceptScore W2034368317C207857233 @default.
- W2034368317 hasConceptScore W2034368317C24890656 @default.
- W2034368317 hasConceptScore W2034368317C31972630 @default.
- W2034368317 hasConceptScore W2034368317C41008148 @default.
- W2034368317 hasConceptScore W2034368317C542102704 @default.
- W2034368317 hasConceptScore W2034368317C57879066 @default.
- W2034368317 hasConceptScore W2034368317C76155785 @default.
- W2034368317 hasConceptScore W2034368317C99498987 @default.
- W2034368317 hasIssue "6" @default.
- W2034368317 hasLocation W20343683171 @default.
- W2034368317 hasLocation W20343683172 @default.
- W2034368317 hasLocation W20343683173 @default.
- W2034368317 hasOpenAccess W2034368317 @default.
- W2034368317 hasPrimaryLocation W20343683171 @default.
- W2034368317 hasRelatedWork W2027296994 @default.
- W2034368317 hasRelatedWork W2057404208 @default.
- W2034368317 hasRelatedWork W2093880030 @default.
- W2034368317 hasRelatedWork W2168476907 @default.
- W2034368317 hasRelatedWork W2380359120 @default.
- W2034368317 hasRelatedWork W2385528146 @default.
- W2034368317 hasRelatedWork W2611212210 @default.
- W2034368317 hasRelatedWork W3091584678 @default.
- W2034368317 hasRelatedWork W4312809122 @default.
- W2034368317 hasRelatedWork W94247780 @default.
- W2034368317 hasVolume "15" @default.
- W2034368317 isParatext "false" @default.
- W2034368317 isRetracted "false" @default.
- W2034368317 magId "2034368317" @default.
- W2034368317 workType "article" @default.