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All Outputs (7)

Evaluation of the SST-SAS model for prediction of separated flow inside turbine internal cooling passages (2016)
Conference Proceeding
Zacharzewski, P., Simmons, K., Jefferson-Loveday, R., & Capone, L. (2016). Evaluation of the SST-SAS model for prediction of separated flow inside turbine internal cooling passages. In Conference Proceedings of the ASME 2016 Turbo Expo: Power for Land, Sea, and Air. https://doi.org/10.1115/GT2016-56117

The flow and heat transfer over a three-dimensional axisymmetric hill and rectangular ribbed duct is computed in order to evaluate the Shear Stress Transport-Scale Adaptive Simulation (SST-SAS) turbulence model. The study presented here is relevant t... Read More about Evaluation of the SST-SAS model for prediction of separated flow inside turbine internal cooling passages.

A computational fluid dynamics simulation of oil-air flow between the cage and inner race of an aero-engine bearing (2016)
Journal Article
Adeniyi, A. A., Morvan, H., & Simmons, K. (2017). A computational fluid dynamics simulation of oil-air flow between the cage and inner race of an aero-engine bearing. Journal of Engineering for Gas Turbines and Power, 139(1), https://doi.org/10.1115/1.4034210

In aero-engines, the shafts are supported on bearings that carry the radial and axial loads. A ball bearing is made up of an inner race, an outer race, and a cage, which contains the balls, these together comprise the bearing elements. The bearings r... Read More about A computational fluid dynamics simulation of oil-air flow between the cage and inner race of an aero-engine bearing.

Innovative shallow sump customizations for aero-engine bearing chambers (2016)
Conference Proceeding
Chandra, B., & Simmons, K. (2016). Innovative shallow sump customizations for aero-engine bearing chambers.

Aero-engines incorporate various bearing chambers and these typically contain bearings, seals, rotating shafts, stationary walls and struts, and sometimes gears. Oil is supplied for lubrication and cooling and is removed (scavenged) from the sump reg... Read More about Innovative shallow sump customizations for aero-engine bearing chambers.

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.

A study of droplet impact on static films using the BB-LIF technique (2016)
Journal Article
Hann, D. B., Cherdantsev, A. V., Mitchell, A., McCarthy, I., Hewakandamby, B. N., & Simmons, K. (2016). A study of droplet impact on static films using the BB-LIF technique. Experiments in Fluids, 57(46), https://doi.org/10.1007/s00348-016-2132-x

This paper presents results of single droplet impacts on films of different height taken using the Brightness Based Laser Induced Fluorescence technique (BB-LIF). The dynamics of drop impingement such as the shape of the cavity, residual film thickne... Read More about A study of droplet impact on static films using the BB-LIF technique.