CFD analysis of an enhanced nozzle designed for plasma figuring of large optical surfaces

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dc.contributor.authorYu, Nan
dc.contributor.authorJourdain, Renaud
dc.contributor.authorGourma, Mustapha
dc.contributor.authorShore, Paul
dc.date.accessioned2016-09-27T10:42:22Z
dc.date.available2016-09-27T10:42:22Z
dc.date.issued2016-06-30
dc.description.abstractFor addressing the correction of Mid Spatial Frequency (MSF) errors on metre scale optical surfaces induced by sub aperture figuring process, a new generation of non-contact plasma based surface figuring tools has been created at Cranfield University. In this context, this paper presents an investigation that focuses on novel enhanced nozzles that were created for a Radio Frequency (RF) Inductively Coupled Plasma (ICP) torch. The characteristics of plasma jet delivered by prototype nozzle and a selected enhanced nozzle are compared using an in-house created CFD model. The enhanced nozzle design is based on the results previously obtained throughout a numerical analysis that enabled to identify the key design aspects of these nozzles. This enhanced nozzle is predicted to provide 12.5% smaller footprint and 15.5% higher temperature.en_UK
dc.identifier.citationYu N, Jourdain R, Gourma M & Shore P (2016) CFD analysis of an enhanced nozzle designed for plasma figuring of large optical surfaces. 16th International Conference of the European Society for Precision Engineering and Nanotechnology (EUSPEN), 30th May - 3rd June 2016, Nottingham, UK.en_UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10598
dc.language.isoenen_UK
dc.publisherEuropean Society for Precision Engineering and Nanotechnologyen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectPlasma jeten_UK
dc.subjectsurface figuringen_UK
dc.subjectMSFen_UK
dc.subjectDe-Laval nozzleen_UK
dc.subjectenergy beamen_UK
dc.subjectoptical fabricationen_UK
dc.subjectmaterial removal footprinten_UK
dc.titleCFD analysis of an enhanced nozzle designed for plasma figuring of large optical surfacesen_UK
dc.typeConference paperen_UK

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