Outputs (16)

A phase-change model for diffusion-driven mass transfer problems in incompressible two-phase flows (2022)
Journal Article
Gennari, G., Jefferson-Loveday, R., & Pickering, S. J. (2022). A phase-change model for diffusion-driven mass transfer problems in incompressible two-phase flows. Chemical Engineering Science, 259, Article 117791. https://doi.org/10.1016/j.ces.2022.117791

We present a VOF-based numerical method for incompressible Direct Navier–Stokes (DNS) equations for diffusion-driven phase-change flows. A special emphasis is placed on the treatment of velocity discontinuities across the interface. A novel algorithm... Read More about A phase-change model for diffusion-driven mass transfer problems in incompressible two-phase flows.

4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft (2021)
Journal Article
Golovanov, D., Gerada, D., Sala, G., Degano, M., Trentin, A., Connor, P. H., Xu, Z., Rocca, A. L., Galassini, A., Tarisciotti, L., Eastwick, C. N., Pickering, S. J., Wheeler, P., Clare, J., Filipenko, M., & Gerada, C. (2021). 4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft. IEEE Transactions on Transportation Electrification, 7(4), 2952-2964. https://doi.org/10.1109/TTE.2021.3068928

This article describes the underpinning research, development, construction, and testing of a 4-MW multithree phase generator designed for a hybrid-electric aircraft propulsion system demonstrator. The aim of the work is to demonstrate gravimetric po... Read More about 4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft.

Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation (2020)
Journal Article
Trentin, A., Sala, G., Tarisciotti, L., Galassini, A., Degano, M., Connor, P. H., Golovanov, D., Gerada, D., Xu, Z., La Rocca, A., Eastwick, C. N., Pickering, S. J., Wheeler, P., Clare, J. C., & Gerada, C. (2021). Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation. IEEE Transactions on Industrial Electronics, 68(12), 11684-11695. https://doi.org/10.1109/TIE.2020.3040692

In this article, we describe the research and development of a 3 kV active rectifier for a 4 MW aerospace generator drive system demonstrator. The converter is fed by a multiphase high-speed/high-frequency permanent magnet generator. The main aim of... Read More about Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation.

Development of high performance recycled carbon fibre composites with an advanced hydrodynamic fibre alignment process (2020)
Journal Article
Liu, Z., Turner, T. A., Wong, K. H., & Pickering, S. J. (2021). Development of high performance recycled carbon fibre composites with an advanced hydrodynamic fibre alignment process. Journal of Cleaner Production, 278, Article 123785. https://doi.org/10.1016/j.jclepro.2020.123785

Carbon fibre composites have great potential for vehicle lightweighting but the high cost and environmental impact of their production tends to largely undermine the advantages in nonaerospace applications. Recycled fibre has the potential to signifi... Read More about Development of high performance recycled carbon fibre composites with an advanced hydrodynamic fibre alignment process.

From aviation to aviation: Environmental and financial viability of closed-loop recycling of carbon fibre composite (2020)
Journal Article
Meng, F., Cui, Y., Pickering, S., & McKechnie, J. (2020). From aviation to aviation: Environmental and financial viability of closed-loop recycling of carbon fibre composite. Composites Part B: Engineering, 200, Article 108362. https://doi.org/10.1016/j.compositesb.2020.108362

© 2020 By 2050, the aviation sector is expected to generate about 500,000 tonnes of accumulated carbon fibre reinforced plastic waste from the production and end-of-life phase. In this study, aircraft interior applications of recycled carbon fibre (r... Read More about From aviation to aviation: Environmental and financial viability of closed-loop recycling of carbon fibre composite.

Effect of fibre suspension jet stability on alignment quality of discontinuous carbon fibre tapes (2019)
Journal Article
Liu, Z., Turner, T., Wong, K., & Pickering, S. (2019). Effect of fibre suspension jet stability on alignment quality of discontinuous carbon fibre tapes. International Journal of Multiphase Flow, 120, Article 103102. https://doi.org/10.1016/j.ijmultiphaseflow.2019.103102

A hydrodynamic alignment process has been developed for converting discontinuous random carbon fibres into tapes with a highly aligned orientation distribution to greatly improve the applicability of recovered fibres to composite parts.... Read More about Effect of fibre suspension jet stability on alignment quality of discontinuous carbon fibre tapes.

Thermo-Mechanical Modelling of Bearing Chambers of a High-Speed Starter/Generator (2019)
Presentation / Conference Contribution
Rocca, A. L., Connor, P. H., Xu, Z., Eastwick, C. N., Pickering, S. J., & Gerada, C. (2019, May). Thermo-Mechanical Modelling of Bearing Chambers of a High-Speed Starter/Generator. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

This paper describes the thermal-mechanical characterisation methodology for the bearing chambers of a high-speed (32,000 rpm) electrical starter/generator [1]; presenting a low cost analysis approach and design guideline for future machines. The met... Read More about Thermo-Mechanical Modelling of Bearing Chambers of a High-Speed Starter/Generator.

Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor (2019)
Presentation / Conference Contribution
Connor, P. H., La Rocca, A., Xu, Z., Degano, M., Eastwick, C. N., Pickering, S. J., & Gerada, C. (2019, May). Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor. Presented at 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019, San Diego, USA

This paper presents a computational fluid dynamics conjugate heat transfer analysis of internal and external cooling paths for a hollow high-speed permanent magnet rotor. Extracting magnet losses from high-speed permanent magnet rotors is challenging... Read More about Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor.

Numerical investigations of convective phenomena of oil impingement on end-windings (2019)
Presentation / Conference Contribution
Connor, P. H., La Rocca, A., Xu, Z., Eastwick, C. N., Pickering, S. J., & Gerada, C. (2018, April). Numerical investigations of convective phenomena of oil impingement on end-windings. Presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018), Liverpool

A novel experimental rig for analysing intensive liquid cooling of highly power-dense electrical machine components has been developed. Coupled fluid flow and heat transfer have been modelled, using computational fluid dynamics (CFD), to inform the d... Read More about Numerical investigations of convective phenomena of oil impingement on end-windings.

Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry (2019)
Journal Article
La Rocca, S., Pickering, S. J., Eastwick, C. N., Gerada, C., & Rönnberg, K. (2019). Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry. Journal of Engineering, 2019(17), 3831-3835. https://doi.org/10.1049/joe.2018.8026

Here, a typical small low-voltage totally enclosed fan-cooled (TEFC) motor (output power ∼10 kW) has been studied using computational fluid dynamics. The complexity of the end-winding geometries, often consisting of several insulated copper strands b... Read More about Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry.