Abstract
This study aimed to measure pressure-related turbulence statistics such as the velocity-pressure or the pressure-strain correlations. To do so, the pressure field evaluation based on the velocity data measured by particle image velocimetry (PIV) was combined with direct single-point-measurement by miniature static pressure probes (SP-probe). The instantaneous pressure field was derived from the measurement results by PIV, and the pressure fluctuations associated with the large-scale vortex motion were extracted using the instantaneous pressure directly measured by the SP-probe as a reference signal. The measurement was taken in a turbulent near wake of a circular cylinder. After the validity of the instantaneous pressure evaluated from the PIV data was addressed, the velocity-pressure correlation and the pressure-strain correlation were investigated.
| Original language | English |
|---|---|
| Article number | 1776 |
| Journal | Experiments in Fluids |
| Volume | 55 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2014 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes
- Computational Mechanics
- Mechanics of Materials
Cite this
Velocity-pressure correlation measurement based on planar PIV and miniature static pressure probes. / Kawata, Takuya; Obi, Shinnosuke.
In: Experiments in Fluids, Vol. 55, No. 7, 1776, 2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Velocity-pressure correlation measurement based on planar PIV and miniature static pressure probes
AU - Kawata, Takuya
AU - Obi, Shinnosuke
PY - 2014
Y1 - 2014
N2 - This study aimed to measure pressure-related turbulence statistics such as the velocity-pressure or the pressure-strain correlations. To do so, the pressure field evaluation based on the velocity data measured by particle image velocimetry (PIV) was combined with direct single-point-measurement by miniature static pressure probes (SP-probe). The instantaneous pressure field was derived from the measurement results by PIV, and the pressure fluctuations associated with the large-scale vortex motion were extracted using the instantaneous pressure directly measured by the SP-probe as a reference signal. The measurement was taken in a turbulent near wake of a circular cylinder. After the validity of the instantaneous pressure evaluated from the PIV data was addressed, the velocity-pressure correlation and the pressure-strain correlation were investigated.
AB - This study aimed to measure pressure-related turbulence statistics such as the velocity-pressure or the pressure-strain correlations. To do so, the pressure field evaluation based on the velocity data measured by particle image velocimetry (PIV) was combined with direct single-point-measurement by miniature static pressure probes (SP-probe). The instantaneous pressure field was derived from the measurement results by PIV, and the pressure fluctuations associated with the large-scale vortex motion were extracted using the instantaneous pressure directly measured by the SP-probe as a reference signal. The measurement was taken in a turbulent near wake of a circular cylinder. After the validity of the instantaneous pressure evaluated from the PIV data was addressed, the velocity-pressure correlation and the pressure-strain correlation were investigated.
UR - http://www.scopus.com/inward/record.url?scp=84903259092&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903259092&partnerID=8YFLogxK
U2 - 10.1007/s00348-014-1776-7
DO - 10.1007/s00348-014-1776-7
M3 - Article
AN - SCOPUS:84903259092
VL - 55
JO - Experiments in Fluids
JF - Experiments in Fluids
SN - 0723-4864
IS - 7
M1 - 1776
ER -