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All Outputs (16)

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.

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.

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.

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.

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.

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.

Evaluation of a volume of fluid CFD methodology for the oil film thickness estimation in an aero-engine bearing chamber (2016)
Conference Proceeding
Bristot, A., Morvan, H., & Simmons, K. (2016). Evaluation of a volume of fluid CFD methodology for the oil film thickness estimation in an aero-engine bearing chamber.

The presented work aims to identify a Volume of Fluid (VOF) CFD approach for the transient simulation of air/oil flows inside an aero-engine bearing chamber. Typically VOF requires relatively fine grids and consequently small time-steps to sufficient... Read More about Evaluation of a volume of fluid CFD methodology for the oil film thickness estimation in an aero-engine bearing chamber.

The depth-averaged numerical simulation of laminar thin-film flows with capillary waves (2016)
Journal Article
Kakimpa, B., Morvan, H., & Hibberd, S. (2016). The depth-averaged numerical simulation of laminar thin-film flows with capillary waves. Journal of Engineering for Gas Turbines and Power, 138(11), Article 112501. https://doi.org/10.1115/1.4033471

Thin-film flows encountered in engineering systems such as aero-engine bearing chambers often exhibit capillary waves and occur within a moderate to high Weber number range. Although the depth-averaged simulation of these thin-film flows is computati... Read More about The depth-averaged numerical simulation of laminar thin-film flows with capillary waves.

Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads (2016)
Journal Article
Polenta, V., Garvey, S. D., Chronopoulos, D., Long, A. C., & Morvan, H. (2016). Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads. Thin-Walled Structures, 105, https://doi.org/10.1016/j.tws.2016.04.002

The paper proposes a novel type of stiffener designed to bear bending loads by exploiting internal pressure effects. The stiffener is made of two adjacent thin-walled pipes (r/t?50) jointed with a connecting strip. Such a structure is shown to have h... Read More about Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads.

Evaluation of advanced receiver autonomous integrity monitoring performance on predicted aircraft trajectories (2016)
Conference Proceeding
Paternostro, S., Moore, T., Hill, C., Atkin, J., & Morvan, H. (2016). Evaluation of advanced receiver autonomous integrity monitoring performance on predicted aircraft trajectories.

The development of new GNSS constellations, and the modernization of existing ones, has increased the availability and the number of satellites-in-view, paving the way for new navigation algorithms and techniques. These offer the opportunity to impro... Read More about Evaluation of advanced receiver autonomous integrity monitoring performance on predicted aircraft trajectories.

Electromagnetic launch systems for civil aircraft assisted take-off (2015)
Journal Article
Bertola, L., Cox, T., Wheeler, P., Garvey, S. D., & Morvan, H. (2015). Electromagnetic launch systems for civil aircraft assisted take-off. Archives of Electrical Engineering, 64(4), https://doi.org/10.1515/aee-2015-0039

This paper considers the feasibility of different technologies for an electromagnetic launcher to assist civil aircraft take-off. This method is investigated to reduce the power required from the engines during initial acceleration. Assisted launch h... Read More about Electromagnetic launch systems for civil aircraft assisted take-off.

Computational investigation of flows and pressure fields associated with spur gear meshing (2014)
Conference Proceeding
Baydu, C. A., Simmons, K., & Morvan, H. (2014). Computational investigation of flows and pressure fields associated with spur gear meshing. In Volume 5C: Heat Transfer. https://doi.org/10.1115/GT2014-26145

The efficiency of power transmission systems is increasingly targeted with a view to reducing parasitic losses and improving specific fuel consumption (SFC). One of the effects associated with such parasitic losses is the successive compression and e... Read More about Computational investigation of flows and pressure fields associated with spur gear meshing.