Rory J. Clarkson

High-temperature reactions of CaSO4 and Na2SO4 in aircraft engines

Jacob Elms, Alison R. Pawley, Stephen J. Covey-Crump, Merren Jones et autres

CaSO₄ and Na₂SO₄ are often associated with CMAS deposits and hot corrosion in gas turbine engines. They are formed from ingested airborne contaminants, CaSO₄ mainly through the direct dehydration of ingested CaSO₄·2H₂O (gypsum), and Na₂SO₄ through reaction of sulfur- and sodium-bearing compounds. …

High-temperature reactions of CaSO4 and Na2SO4 in aircraft engines

Jacob Elms, Alison R. Pawley, Stephen J. Covey-Crump, Merren A. Jones et autres

CaSO 4 and Na 2 SO 4 are often associated with CMAS deposits and hot corrosion in gas turbine engines. They are formed from ingested airborne contaminants, CaSO 4 mainly through the direct dehydration of ingested CaSO 4 ·2H 2 O (gypsum), …

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On the composition of the Arizona test dust: A comprehensive characterization of an analog for atmospheric mineral dust

Alix M. Ehlers, David J. Bunin, Mark J. Caddick, Jim Loebig et autres

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Investigating safety aspects of using insect farming to reduce pig and chicken wastes at semi-commercial and lab-scale

L S McDowall, Ana Collado, Rory J. Clarkson, G.U. Reiß- et autres

Increasing global demand for food is driving the need to reduce wastes produced by agriculture to minimise environmental impacts. Black Soldier Fly, Hermetia illucens, can reduce livestock wastes, but research into the safety and scalability of the system is required. Insect bioconversion …

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Predictive engine model incorporating physics based model estimation and machine learning

Jin-sol Jung, Changmin Son, Andrew Rimell, Rory J. Clarkson

Gas turbine engines on aircraft are equipped with an Engine Health Monitoring (EHM) system that collects in-service data of various installed sensors. The system is not free from malfunction or deterioration. Hence, the signal can be lost (missing data) or convey faulty …

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The effect of irregular particle shape and surface deformation on particle bounce, part II: Particle bounce modelling and experimental validation

Brandon J. Weindorf, Alix M. Ehlers, K. Todd Lowe, Wing W. Y. Ng et autres

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Understanding Mineral Dust Through a Doctoral Alliance

Franco Marenco, Vassilis Amiridis, Konrad Kandler, Stelios Kazadzis et autres

We present an example of how a doctoral network can bring together multidisciplinary expertise and novel scientific advances in atmospheric dust. This network (Dust-DN) has started operations and is a strategic alliance of high-profile partners, able to leverage unique facilities for atmospheric …

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Correction to: Physical, psychological and behavioural responses of aircraft occupants to volcanic emissions

Claire J. Horwell, S. Ravenhall, Rory J. Clarkson, Marie Edmonds et autres

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On Runway Foreign Object Ingestion With a Variable Pitch Fan in Reverse Thrust Mode

Dimitrios Vitlaris, David John Rajendran, Richard Tunstall, B. N. Moore et autres

Abstract The characterization and quantification of runway foreign object ingestion (FOI) at the end of the landing run with a variable pitch fan (VPF) in reverse thrust mode are described in this work. This is achieved by developing a novel, fully coupled …

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A Framework for an ML-Based Predictive Turbofan Engine Health Model

Jin-sol Jung, Changmin Son, Andrew Rimell, Rory J. Clarkson

A predictive health modeling framework was developed for a family of turbofan engines, focusing on early detection of performance degradation. Turbine Gas Temperature (TGT) was employed as the primary indicator of engine health within the model, due to its strong correlation with …

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The effect of irregular particle shape and surface deformation on particle bounce, Part I: Characterizing particle geometries and induced plastic deformation on surfaces

Alix M. Ehlers, Brandon J. Weindorf, Mark J. Caddick, K. Todd Lowe et autres

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Particle/blade Impact Study of Near-Transonic Compressor in Engine Test

Boone Estes, Paige Brockway, Leonardo Olivera, David J. Bunin et autres

Abstract Compressor blade/particle interactions and erosion are studied using a Rolls-Royce M250-C20B turboshaft engine in an instrumented engine test cell. A novel experimental dataset was produced, yielding a qualitative visualization of particle impact regions on blades and vanes of an on-engine full …

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