The Calibration and Application of Five-Hole Probes

The experimental verification of a streamline curvature numerical analysis method applied to the flow through an axial flow fan

“…These probes were used in the non-nulling mode as described by Treaster and Yocum [27]. Both probes were previously calibrated for flow angles of ±30 degrees in both the yaw and pitch planes [22].…”

The unsteady response of an axial flow turbomachinery rotor to inletflow distortions

“…These data are presented in Figures 53 and 54 for the 90 degree and 180 degree distortions, respectively. The total pressure distortion amplitude is defined by Equation (36), and the axial velocity distortion amplitude is defined by Equation ( However, it appears from the figures that the 90 degree total pressure distortion has undergone a greater amplification upstream of the rotor than the 180 degree distortion. The attenuation of the two square distortions across the rotor is approximately the same since the axial velocity and total pressure amplitude ratios downstream of the rotor are the same.…”

Calibration and Use of n-Hole Velocity Probes

“…The design, calibration and use of five-and seven-hole probes is already well-developed (see, for example [7,8,9,10,11]). In general, the calibration process involves the identification of nondimensional pressure coefficients which are as sensitive as possible to the flow angularity but are insensitive to the velocity magnitude.…”