Kevin Reid
Syncrude
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Publication
Featured researches published by Kevin Reid.
Journal of Turbomachinery-transactions of The Asme | 2007
Kevin Reid; John D. Denton; Graham Pullan; Eric Warren Curtis; J. P. Longley
Individual nozzle guide vanes (NGV???s) in modern aeroengines are often cast as a single piece with integral hub and casing endwalls. When in operation, there is a leakage flow through the chord-wise interplatform gaps. An investigation into the effect of this leakage flow on turbine performance is presented. Efficiency measurements and NGV exit area traverse data from a low-speed research turbine are reported. Tests show that this leakage flow can have a significant impact on turbine performance, but that below a threshold leakage fraction this penalty does not rise with increasing leakage flow rate. The effect of various seal clearances are also investigated. Results from steady-state simulations using a three-dimensional multiblock Reynolds-averaged Navier-Stokes solver are presented with particular emphasis paid to the physics of the mainstream/leakage interaction and the loss generation.
ASME Turbo Expo 2006: Power for Land, Sea, and Air | 2006
Kevin Reid; John D. Denton; Graham Pullan; Eric Curtis; J. P. Longley
An investigation into the effect of stator-rotor hub gap sealing flow on turbine performance is presented. Efficiency measurements and rotor exit area traverse data from a low speed research turbine are reported. Tests carried out over a range of sealing flow conditions show that the turbine efficiency decreases with increasing sealant flow rate but that this penalty is reduced by swirling the sealant flow. Results from time-accurate and steady-state simulations using a three-dimensional multi-block RANS solver are presented with particular emphasis paid to the mechanisms of loss production. The contributions toward entropy generation of the mixing of the sealant fluid with the mainstream flow and of the perturbed rotor secondary flows are assessed. The importance of unsteady stator wake/sealant flow interactions is also highlighted.Copyright
ASME Turbo Expo 2006: Power for Land, Sea, and Air | 2006
Kevin Reid; John D. Denton; Graham Pullan; Eric Curtis; J. P. Longley
Individual nozzle guide vanes (NGV’s) in modern aero engines are often cast as a single unit with integral hub and casing endwalls. When in operation there is a leakage flow through the chord-wise inter-platform gaps. A previous paper [1] has shown that these gaps can result in a stage efficiency penalty of 0.5% – 1.5% depending upon how well they are sealed. In this paper, numerical calculations are used to re-design the inter-platform gaps with the aim of minimizing their effect on the mainstream aerodynamics and hence reduce the efficiency penalty. Experiments using a full scale, low speed model turbine and an improved gap-design show that significant performance improvements are possible regardless of how well the gap is sealed.Copyright
ASME Turbo Expo 2005: Power for Land, Sea, and Air | 2005
Kevin Reid; John D. Denton; Graham Pullan; Eric Curtis; J. P. Longley
Individual nozzle guide vanes (NGVs) in modern aero engines are often cast as a single piece with integral hub and casing endwalls. When in operation there is a leakage flow through the chord-wise inter-platform gaps. An investigation into the effect of this leakage flow on turbine performance is presented. Efficiency measurements and NGV exit area traverse data from a low speed research turbine are reported. Tests show that this leakage flow can have a significant impact on turbine performance, but that below a threshold leakage fraction this penalty does not rise with increasing leakage flow rate. The effect of various seal clearances are also investigated. Results from steady-state simulations using a three-dimensional multiblock RANS solver are presented with particular emphasis paid to the physics of the mainstream/leakage interaction and the loss generation.Copyright
Computers & Chemical Engineering | 2014
Konstantin Pougatch; Martha Salcudean; Kevin Reid; Jennifer McMillan
Abstract A novel method for efficient computations of a fluidized bed reactor with liquid injections is developed. It allows economical simulations for a reactor that contains multiple nozzles using a relatively coarse grid, while still accounting for the influence of particular features of individual nozzles. The method relies on patching variables in the near nozzle area obtained on the fine nozzle-scale grid onto the coarse reactor-scale grid followed by the solution of the flow equations elsewhere in the coarse grid domain. The procedure is tested for a small fluidized bed that permits both fine and coarse grid solutions. It was found that the developed procedure represents the flow adequately and allows for the distinction of different nozzle geometries.
Archive | 2013
Robert Siy; Ron Cleminson; Jun Long; Jessica Vandenberghe; Brent Hilscher; Kevin Reid; Tom Tran
Archive | 2017
Jonathan Spence; Yin Ming Samson Ng; Robert Siy; Barry Bara; Jun Long; Kevin Reid; James Lorentz; Shane Hoskins
Archive | 2015
Kevin Reid; Stephen Harasym
Archive | 2014
Tim Revega; Stefano Chiovelli; Kevin Reid
Archive | 2014
Kevin Reid; Daniel Bulbuc; Olle Tornblom; Jie Zheng