Total Pressure Measurements Behind an Axial Ventilator Using a Kiel Probe Array

摘要

This work suggests a new arrangement for measuring the total pressure inside ducts or pipes with non-standard flow field distributions. The device consists of an array of 81 Kiel probes distributed over the duct's cross section. It facilitates the quick measurement of the integral total pressure e.g. behind an axial ventilator without the need to scan the duct section with a traversing or integrating additional substantial flow straightening devices. Wind tunnel tests have proven a tolerance towards deviating on-flow conditions of more than ±35°. The application of the Kiel probe array is shown in a wind tunnel fan test rig.