Johansen, CraigMensik, Ryan Michal2022-11-172022-11-172022-11-16Mensik, R. M. (2022). Characterization of the effects of jet radial position on entrainment ratio in a subsonic ejector (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.http://hdl.handle.net/1880/115506The work investigated an ejector-based intake, the Atlantis Intake System (AIS), in static conditions. A control volume (CV) analysis was presented and used to estimate the entrainment ratios of the AIS. The CV analysis also estimated momentum loss due to the jet’s interaction with the mixing chamber walls. An experimental campaign was performed to validate the CV analysis. Pressure and entrainment ratios were experimentally determined for an AIS in a concentric alignment. Secondly, entrainment ratios were recorded for changing lateral positions of the primary tube. This work showed that the entrainment ratio was insensitive to lateral displacement within normalized radial position less than 0.60. For normalized radial positions beyond 0.6, a sharp drop in the entrainment ratio occurred. A maximum of 18% loss in entrainment ratio was measured. This work shows that there is a minimal penalty to entrainment ratio for small offsets of the primary jet and has the potential to simplify ejector and AIS design.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.ramjetjetconfined jetsentrainmententrainment ratioejectoralignmentasymmetricEngineering--AerospaceEngineering--Mechanicalmaster thesis