Parametric study of turbine NGV blade lean and vortex design

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dc.contributor.authorZhang, Shaowen
dc.contributor.authorMacManus, David G.
dc.contributor.authorLuo, Jianqiao
dc.date.accessioned2016-04-04T09:57:15Z
dc.date.available2016-04-04T09:57:15Z
dc.date.issued2015-12-23
dc.description.abstractThe effects of blade lean and vortex design on the aerodynamics of a turbine entry nozzle guide vane (NGV) are considered using computational fluid dynamics. The aim of the work is to address some of the uncertainties which have arisen from previous studies where conflicting results have been reported for the effect on the NGV. The configuration was initially based on the energy efficient engine turbine which also served as the validation case for the computational method. A total of 17 NGV configurations were evaluated to study the effects of lean and vortex design on row efficiency and secondary kinetic energy. The distribution of mass flow ratio is introduced as an additional factor in the assessment of blade lean effects. The results show that in the turbine entry NGV, the secondary flow strength is not a dominant factor that determines NGV losses and therefore the changes of loading distribution due to blade lean and the associated loss mechanisms should be regarded as a key factor. Radial mass flow redistribution under different NGV lean and twist is demonstrated as an addition key factor influencing row efficiency.en_UK
dc.identifier.citationShaowen Zhang, David G. MacManus, Jianqiao Luo, Parametric study of turbine NGV blade lean and vortex design, Chinese Journal of Aeronautics, Volume 29, Issue 1, February 2016, pp. 104-116en_UK
dc.identifier.issn1000-9361
dc.identifier.urihttp://dx.doi.org/10.1016/j.cja.2015.12.005
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/9808
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-Non-Commercial-No Derivs 3.0 Unported (CC BY-NC-ND 3.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectBlade leanen_UK
dc.subjectLossesen_UK
dc.subjectMass flow radial distributionen_UK
dc.subjectParametric studyen_UK
dc.subjectSecondary kinetic energyen_UK
dc.subjectTurbineen_UK
dc.subjectVortex designen_UK
dc.titleParametric study of turbine NGV blade lean and vortex designen_UK
dc.typeArticleen_UK

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