TY - JOUR
T1 - Velocity-pressure correlation measurements in complex free shear flows
AU - Naka, Yoshitsugu
AU - Obi, Shinnosuke
N1 - Funding Information:
This research was financially supported by Japan Society for the Promotion of Science (JSPS), Grant-in-Aid for JSPS Fellows, 19 · 5711, 2007. We are also grateful to S. Azegami for the contributions to conducting a set of experiments.
PY - 2009/6
Y1 - 2009/6
N2 - Simultaneous measurements of fluctuating velocity and pressure were performed in various turbulent free shear flows including a turbulent mixing layer and the wing-tip vortex trailing from a NACA0012 half-wing. Two different methods for fluctuating static pressure measurement were considered: a direct method using a miniature Pitot tube and an indirect method where static pressure was calculated from total pressure. The pressure obtained by either of these methods was correlated with the velocity measured by an X-type hot-wire probe. The results from these two techniques agreed with each other in the turbulent mixing layer. In the wing-tip vortex case, however, some discrepancies were found, although overall characteristics of the pressure-related statistics were adequately captured by both methods.
AB - Simultaneous measurements of fluctuating velocity and pressure were performed in various turbulent free shear flows including a turbulent mixing layer and the wing-tip vortex trailing from a NACA0012 half-wing. Two different methods for fluctuating static pressure measurement were considered: a direct method using a miniature Pitot tube and an indirect method where static pressure was calculated from total pressure. The pressure obtained by either of these methods was correlated with the velocity measured by an X-type hot-wire probe. The results from these two techniques agreed with each other in the turbulent mixing layer. In the wing-tip vortex case, however, some discrepancies were found, although overall characteristics of the pressure-related statistics were adequately captured by both methods.
KW - Complex free shear flows
KW - Measurement technique
KW - Velocity-pressure correlation
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U2 - 10.1016/j.ijheatfluidflow.2009.01.002
DO - 10.1016/j.ijheatfluidflow.2009.01.002
M3 - Article
AN - SCOPUS:67349118140
VL - 30
SP - 411
EP - 420
JO - Heat Fluid Flow
JF - Heat Fluid Flow
SN - 0142-727X
IS - 3
ER -