Author:
Leister Robin,Brümmer Andreas,Kriegseis Jochen
Abstract
The present experimental feasibility study testifies the two flow measurement techniques Defocusing Particle Tracking Velocimetry (DPTV) and Interferometric Particle Imaging (IPI) for their applicability to measure the two-phase flow of thin (sub-millimeter) annular rotor-stator gaps such as occur across for the leakage flow e.g. in the housing gap of oil-injected rotary positive displacement compressors (RPDC). To provide unrestriced optical access to the annular gap and in turn eliminate secondary effects, a simplified displacement compressor model has been developed and fabricated from perspex. The proof-of-concept results of both experimental campaigns (DPTV & IPI) are discussed and avenues for future efforts towards a straight-forward and accurate applicability of either method are elaborated.
Reference19 articles.
1. An investigation into oil—gas two-phase leakage flow through micro gaps in oil-injected compressors;Xin;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science,2010
2. Flow-structure identification in a radially grooved open wet clutch by means of defocusing particle tracking velocimetry;Leister;Experiments in Fluids,2021
3. In situ calibrated defocusing ptv for wall-bounded measurement volumes;Fuchs;Measurement Science and Technology,2016
4. Uncertainty quantification of three-dimensional velocimetry techniques for small measurement depths;Fuchs;Experiments in Fluids,2016