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Title: Development and validation of a water separation model for AIS (air intake systems) through PEPT experiments
Author: Vangestel, Bram
ISNI:       0000 0004 9358 0824
Awarding Body: University of Warwick
Current Institution: University of Warwick
Date of Award: 2019
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An experimental investigation of the flow through a scaled down mock-up of an Air Intake System (AIS) of a heavy goods vehicle are presented. The main goal being to identify the locations where small water droplets that enter the system together with the air will get deposited and to evaluate details of drainage film flows that are established on the inclined louvres in the orifice of the system in order to validate the predictions of a computational model. A single particle was tracked using the positron emission particle tracking (PEPT) technique, a method that determines the location of a particle through the triangulation of gamma photons emitted by a radioactive tracer particle. The experiments were performed at the Positron Emission Particle Tracking facility at the University of Birmingham for ow down inclined at surfaces. The materials used for the test surfaces were manufactured from the same materials that are considered for use for the full-scale commercial systems to be designed. The surfaces of the plates were plasma treated to achieve laboratory conditions for the surface energy closely representing those to be encountered under typical operational conditions for vehicles on the road. The simulation was then solved by means of commercial CFD multiphase models developed as part of the research. The information obtained from the experiments is then used for the validation of the CFD set-up for an identical geometry as used during the experiments, the main air phase in the model is validated through measurements on the air (velocity in multiple areas of the geometry, and pressure reading at the beginning and end of the ductwork), the water phase is then validated with the experimental velocity data obtained during the PEPT experiments. The results show that the surface energy significantly effects the drainage flows established. Finally the validated CFD model is then applied to a true scale commercially available Air Intake System and findings on this design exploration are reported. Those findings can then be used in future investigations to improve new Air Intake Systems.
Supervisor: Not available Sponsor: Donaldson Company
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TL Motor vehicles. Aeronautics. Astronautics