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All Outputs (35)

Multiphase Computational Fluid Dynamics Modeling of External Oil Flow From a Journal Bearing (2018)
Journal Article
Berthold, M., Morvan, H., Jefferson-Loveday, R., Young, C., Rothwell, B. C., & Ambrose, S. (2019). Multiphase Computational Fluid Dynamics Modeling of External Oil Flow From a Journal Bearing. Journal of Engineering for Gas Turbines and Power, 141(5), 1-12. https://doi.org/10.1115/1.4041517

High loads and bearing life requirements make journal bearings a potential choice for use in high power, epicyclic gearboxes in jet engines. Particularly, in a planetary configuration , the kinematic conditions are complex. With the planet gears rota... Read More about Multiphase Computational Fluid Dynamics Modeling of External Oil Flow From a Journal Bearing.

Deep learning approaches to aircraft maintenance, repair and overhaul: a review (2018)
Conference Proceeding
Rengasami, D., Morvan, H., & Patrocinio Figueredo, G. (2018). Deep learning approaches to aircraft maintenance, repair and overhaul: a review. In 21st IEEE International Conference on Intelligent Transportation Systemshttps://doi.org/10.1109/ITSC.2018.8569502

The use of sensor technology constantly gathering aircrafts' status data has promoted the rapid development of data-driven solutions in aerospace engineering. These methods assist, for instance, with determining appropriate actions for aircraft maint... Read More about Deep learning approaches to aircraft maintenance, repair and overhaul: a review.

Multiphase CFD modeling of external oil flow from a journal bearing (2018)
Conference Proceeding
Berthold, M., Morvan, H., Jefferson-Loveday, R., Rothwell, B. C., & Young, C. (2018). Multiphase CFD modeling of external oil flow from a journal bearing. In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. Volume 1. Aircraft engines, Fans and blowers, Marine. https://doi.org/10.1115/GT2018-77130

High loads and bearing life requirements make journal bearings a potential choice for use in high power, epicyclic gearboxes in jet engines. Particularly in a planetary configuration the kinematic conditions are complex. With the planet gears rotatin... Read More about Multiphase CFD modeling of external oil flow from a journal bearing.

Human performance and strategies while solving an aircraft routing and sequencing problem: an experimental approach (2018)
Journal Article
Argyle, E. M., Houghton, R. J., Atkin, J., de Maere, G., Moore, T., & Morvan, H. (2018). Human performance and strategies while solving an aircraft routing and sequencing problem: an experimental approach. Cognition, Technology and Work, 20(3), 425–441. https://doi.org/10.1007/s10111-018-0480-4

As airport resources are stretched to meet increasing demand for services, effective use of ground infrastructure is increasingly critical for ensuring operational efficiency. Work in operations research has produced algorithms providing airport towe... Read More about Human performance and strategies while solving an aircraft routing and sequencing problem: an experimental approach.

An SPH multi-fluid model based on quasi-buoyancy for interface stabilization up to high density ratios and realistic wave speed ratios (2018)
Journal Article
Kruisbrink, A. C., Pearce, F., Yue, T., & Morvan, H. (2018). An SPH multi-fluid model based on quasi-buoyancy for interface stabilization up to high density ratios and realistic wave speed ratios. International Journal for Numerical Methods in Fluids, 87(10), https://doi.org/10.1002/fld.4498

We introduce a Smoothed Particle Hydrodynamics (SPH) concept for the stabilization of the interface between two fluids. It is demonstrated that the change in the pressure gradient across the interface leads to a force imbalance. This force imbalance... Read More about An SPH multi-fluid model based on quasi-buoyancy for interface stabilization up to high density ratios and realistic wave speed ratios.

Modelling and optimisation of sound absorption in replicated microcellular metals (2018)
Journal Article
Otaru, A. J., Morvan, H. P., & Kennedy, A. (2018). Modelling and optimisation of sound absorption in replicated microcellular metals. Scripta Materialia, 150, 152-155. https://doi.org/10.1016/j.scriptamat.2018.03.022

Wilson's poroacoustic model has been shown to be an accurate predictor of sound absorption in porous metals with bottleneck type structures. When used to optimise pore structures, using porosity and permeability as variables, the most broadband absor... Read More about Modelling and optimisation of sound absorption in replicated microcellular metals.

Measurement and simulation of pressure drop across replicated porous aluminium in the Darcy-Forchheimer regime (2018)
Journal Article
Otaru, A., Morvan, H., & Kennedy, A. R. (2018). Measurement and simulation of pressure drop across replicated porous aluminium in the Darcy-Forchheimer regime. Acta Materialia, 149, https://doi.org/10.1016/j.actamat.2018.02.051

Experimental measurements of the pressure drop across porous metals have been compared with computational fluid dynamics simulations, for the first time, for structures typified by large pores with small interconnecting “windows”. Structural informat... Read More about Measurement and simulation of pressure drop across replicated porous aluminium in the Darcy-Forchheimer regime.

Toward Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox (2018)
Journal Article
Berthold, M., Morvan, H., Young, C., & Jefferson-Loveday, R. J. (2018). Toward Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox. Journal of Engineering for Gas Turbines and Power, 140(6), 1-9. https://doi.org/10.1115/1.4038284

High loads and bearing life requirements make journal bearings the preferred choice for use in high power, planetary gearboxes in jet engines. With the planet gears rotating about their own axis and orbiting around the sun gear, centrifugal forces ge... Read More about Toward Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox.

A coupled Euler-Lagrange CFD modelling of droplets-to-film (2017)
Journal Article
Adeniyi, A. A., Morvan, H. P., & Simmons, K. A. (in press). A coupled Euler-Lagrange CFD modelling of droplets-to-film. Aeronautical Journal, 121(1246), https://doi.org/10.1017/aer.2017.107

In this paper, a droplet to film interaction model technique is presented. In the proposed approach, the liquid and gas continua are modelled using an enhanced Volume of Fluid (VoF) technique while the droplets are tracked using a Lagrangian framewor... Read More about A coupled Euler-Lagrange CFD modelling of droplets-to-film.

Physiological parameter response to variation of mental workload (2017)
Journal Article
Marinescu, A., Sharples, S., Campbell Ritchie, A., Sanchez Lopez, T., McDowell, M., & Morvan, H. (in press). Physiological parameter response to variation of mental workload. Human Factors, https://doi.org/10.1177/0018720817733101

Previous studies have examined how individual physiological measures respond to changes in mental demand and subjective reports of mental workload. This study explores the response of multiple physiological parameters, measured simultaneously and qua... Read More about Physiological parameter response to variation of mental workload.

SAS – SST simulations of the flow and heat transfer inside a square ribbed duct with artificial forcing (2017)
Conference Proceeding
Zacharzewski, P., Jefferson-Loveday, R. J., & Morvan, H. (2017). SAS – SST simulations of the flow and heat transfer inside a square ribbed duct with artificial forcing.

Scale Resolving Simulations (SRS) are emerging as a promising compromise of cost and accuracy for industrial simulations of flows inside turbine blade cooling systems as they represent a necessary increase of accuracy with respect to Reynolds Average... Read More about SAS – SST simulations of the flow and heat transfer inside a square ribbed duct with artificial forcing.

Continuous Photo-Oxidation in a Vortex Reactor: Efficient Operations Using Air Drawn from the Laboratory (2017)
Journal Article
Lee, D. S., Amara, Z., Clark, C. A., Xu, Z., Kakimpa, B., Morvan, H. P., …George, M. W. (2017). Continuous Photo-Oxidation in a Vortex Reactor: Efficient Operations Using Air Drawn from the Laboratory. Organic Process Research and Development, 21(7), 1042-1050. https://doi.org/10.1021/acs.oprd.7b00153

© 2017 American Chemical Society. We report the construction and use of a vortex reactor which uses a rapidly rotating cylinder to generate Taylor vortices for continuous flow thermal and photochemical reactions. The reactor is designed to operate un... Read More about Continuous Photo-Oxidation in a Vortex Reactor: Efficient Operations Using Air Drawn from the Laboratory.

A coupled 1D film hydrodynamics and core gas flow model for air-oil flows in aero-engine bearing chambers (2017)
Conference Proceeding
Kakimpa, B., Morvan, H., & Hibberd, S. (2017). A coupled 1D film hydrodynamics and core gas flow model for air-oil flows in aero-engine bearing chambers.

A robust 1D film hydrodynamic model has been sequentially coupled with a 1D core gas model and used to predict the instantaneous mean core gas speed, film interface shear stress and liquid film distribution within an idealised bearing chamber. This n... Read More about A coupled 1D film hydrodynamics and core gas flow model for air-oil flows in aero-engine bearing chambers.

Experimental study of the pressure loss in aero-engine air-oil separators (2017)
Journal Article
Cordes, A. L., Pychynski, B. T., Schwitzke, C. C., Bauer, D. H., de Carvalho, A. T. P., & Morvan, B. H. P. (in press). Experimental study of the pressure loss in aero-engine air-oil separators. Aeronautical Journal, https://doi.org/10.1017/aer.2017.41

The results of extensive experimental testing of an aero-engine air-oil separator are presented and discussed. The study focuses on the pressure loss of the system. Oil enters the device in the form of dispersed droplets. Subsequently, separation occ... Read More about Experimental study of the pressure loss in aero-engine air-oil separators.

Thermal Design of Linear Induction and Synchronous Motors for Electromagnetic Launch of Civil Aircraft (2017)
Journal Article
Bertola, L., Cox, T., Wheeler, P., Garvey, S. D., & Morvan, H. (2017). Thermal Design of Linear Induction and Synchronous Motors for Electromagnetic Launch of Civil Aircraft. IEEE Transactions on Plasma Science, 45(7), 1146-1153. https://doi.org/10.1109/TPS.2017.2697941

The engine size of modern passenger transport aircraft is principally determined by take-off conditions, since initial acceleration requires maximum engine power. An elec¬tromagnetic launch (EML) system could provide some or all of the energy require... Read More about Thermal Design of Linear Induction and Synchronous Motors for Electromagnetic Launch of Civil Aircraft.

Pore-scale numerical investigation of pressure drop behaviour across open-cell metal foams (2017)
Journal Article
de Carvalho, T. P., Morvan, H., Hargreaves, D. M., Oun, H., & Kennedy, A. (2017). Pore-scale numerical investigation of pressure drop behaviour across open-cell metal foams. Transport in Porous Media, 117(2), 311-336. https://doi.org/10.1007/s11242-017-0835-y

The development and validation of a grid-based pore-scale numerical modelling methodology applied to five different commercial metal foam samples is described. The 3-D digital representation of the foam geometry was obtained by the use of X-ray micro... Read More about Pore-scale numerical investigation of pressure drop behaviour across open-cell metal foams.

Examples of user algorithms implementing ARAIM techniques for integrity performance prediction, procedures development and pre-flight operations (2017)
Conference Proceeding
Paternostro, S., Moore, T., Hill, C., Atkin, J., De Maere, G., & Morvan, H. (2017). Examples of user algorithms implementing ARAIM techniques for integrity performance prediction, procedures development and pre-flight operations. In 2016 8th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC) (1-15). https://doi.org/10.1109/NAVITEC.2016.7849330

Advanced Receiver Autonomous Integrity Monitoring (ARAIM) is a new Aircraft Based Augmentation System (ABAS) technique, firstly presented in the two reports of the GNSS Evolutionary Architecture Study (GEAS). The ARAIM technique offers the opportunit... Read More about Examples of user algorithms implementing ARAIM techniques for integrity performance prediction, procedures development and pre-flight operations.

Reducing weight and fuel consumption of civil aircraft by electromagnetic launch (2017)
Conference Proceeding
Bertola, L., Cox, T., Wheeler, P., Polenta, V., Garvey, S. D., & Morvan, H. (2017). Reducing weight and fuel consumption of civil aircraft by electromagnetic launch.

Electromagnetic launch systems have been proposed for military applications to accelerate jet planes on aircraft carriers. This paper proposes the implementation of similar technology to aid civil aircraft take-off, which can provide significant econ... Read More about Reducing weight and fuel consumption of civil aircraft by electromagnetic launch.

Integration of an ARAIM algorithm in the development of an instrument approach procedure and for pre-flight operational briefing (2016)
Presentation / Conference
Paternostro, S., Moore, T., Hill, C., Atkin, J., de Maere, G., & Morvan, H. (2016, November). Integration of an ARAIM algorithm in the development of an instrument approach procedure and for pre-flight operational briefing. Paper presented at International Navigation Conference of the Royal Institute of Navigation (INC 16), Glasgow, UK

Advanced Receiver Autonomous Integrity Monitoring (ARAIM) offers the opportunity to enable Global Navigation Satellite System (GNSS) receivers to serve as a primary means of navigation, worldwide, for precision approach down to Localizer Performance... Read More about Integration of an ARAIM algorithm in the development of an instrument approach procedure and for pre-flight operational briefing.

Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications (2016)
Conference Proceeding
Ahumada, C., Garvey, S. D., Yang, T., Kulsangcharoen, P., Wheeler, P., & Morvan, H. (2016). Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications.

This paper studies strategies to minimize the electromechanical interaction (EMI) within aircraft power systems. With the growth of electrical power on-board aircraft, the interaction between the electrical systems and the engine core will become sig... Read More about Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications.