Acquiring the Pulsation Characteristics of an Unsteady Vortex Flow with the Aid of Pressure Probes

The special probes utilization together with measuring microphones allows to hold local measurements of pressure pulsations and to deform a flow structure marginally. Knowledge about a transfer function of the probe is required for the original signal reconstruction. This article presents the experimental technique of the probe transfer function obtainment. The theoretical assessment of the transfer function was carried out, using the model presented in the literature. Also the original signal reconstruction of pressure pulsations was carried out at the exit of the vortex tangential chamber.

Keywords:
pressure probes, amplitude and phase frequency response, signal reconstruction, vortex chamber. 
УДК 532.52, 532.52, 534.283

Acquiring the Pulsation Characteristics of an Unsteady Vortex Flow with the Aid of Pressure Probes