TY - JOUR
T1 - Velocity-pressure correlation measurement based on planar PIV and miniature static pressure probes
AU - Kawata, Takuya
AU - Obi, Shinnosuke
N1 - Funding Information:
The authors are grateful to reviewers for their critical and constructive comments which remarkably improved the quality of the paper. We are also grateful to Assoc. Prof. Koji Fukagata of Keio University, Japan, for invaluable discussions and to Mr. Hoshihito Maeda for his assist in developing the method for fluctuating pressure measurement in water. A part of this research was financially supported through Grant-in-Aid for Research Fellow (No. 23-3769) of Japan Society for the Promotion of Science (JSPS).
PY - 2014/7
Y1 - 2014/7
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.
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U2 - 10.1007/s00348-014-1776-7
DO - 10.1007/s00348-014-1776-7
M3 - Article
AN - SCOPUS:84903259092
SN - 0723-4864
VL - 55
JO - Experiments in Fluids
JF - Experiments in Fluids
IS - 7
M1 - 1776
ER -