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Outputs (58)

Extracting Quantitative Streamline Information from Surface Flow Visualization Images in a Linear Cascade using Convolutional Neural Networks (2024)
Presentation / Conference Contribution
Liu, X., Ingram, G., Sims-Williams, D., & Breckon, T. P. (2024, September). Extracting Quantitative Streamline Information from Surface Flow Visualization Images in a Linear Cascade using Convolutional Neural Networks. Presented at GPPS Chania24, Chania

Surface flow visualization (SFV), specifically surface oil flow visualization, is an experimental technique that involves coating the surface with a mixture of oils and dyes before applying the flow to the subject. While investigating the surface flo... Read More about Extracting Quantitative Streamline Information from Surface Flow Visualization Images in a Linear Cascade using Convolutional Neural Networks.

Characterisation and Integration of Piezoelectric Trimorph Actuators for Blade Active Surface Control on a Scaled Wind Turbine (2024)
Journal Article
Fuentes Holden, J. P., Gan, L., Sims-Williams, D., Gilbert, J., Osborne, P., & Bastankhah, M. (2024). Characterisation and Integration of Piezoelectric Trimorph Actuators for Blade Active Surface Control on a Scaled Wind Turbine. Journal of Physics: Conference Series, 2767(9), Article 092094. https://doi.org/10.1088/1742-6596/2767/9/092094

The paper investigates the integration of piezoelectric bending actuators on trailing edge flaps (TEF). The characterisation of piezoelectric actuators is of great importance due to differences in performance resulting from sample variability, actuat... Read More about Characterisation and Integration of Piezoelectric Trimorph Actuators for Blade Active Surface Control on a Scaled Wind Turbine.

Beamforming Quantification of Acoustic Transmission Paths for Passenger Vehicles Using a Reciprocal Approach (2023)
Presentation / Conference Contribution
Oettle, N., Graham, S., Sims-Williams, D., Riegel, M., & Hebestreit, R. (2023, May). Beamforming Quantification of Acoustic Transmission Paths for Passenger Vehicles Using a Reciprocal Approach. Presented at Noise and Vibration Conference & Exhibition, Grand Rapids, Michigan, United States

This paper presents an experimental method for
measuring transmission paths from the exterior to the
interior of a passenger vehicle using a reciprocal
approach: A production vehicle was placed in a semi-anechoic
environment; artificial noise sou... Read More about Beamforming Quantification of Acoustic Transmission Paths for Passenger Vehicles Using a Reciprocal Approach.

Flow separation from polygonal cylinders in an incident flow (2023)
Journal Article
Masoudi, E., Sims-Williams, D., & Gan, L. (2023). Flow separation from polygonal cylinders in an incident flow. Physical Review Fluids, 8(1), Article 014701. https://doi.org/10.1103/physrevfluids.8.014701

In this paper, we carry out large eddy simulation of incident flow around polygonal cylinders of side number N = 5 − 8 at Reynolds number Re = 10 4 . In total, six incidence angles ( α ) are studied on each polygon between the face and the corner ori... Read More about Flow separation from polygonal cylinders in an incident flow.

Representative On-Road Aerodynamic Yaw Angle Distribution in China for Vehicle Development (2022)
Journal Article
Xiao, L., Wang, Q., Zhu, X., Bu, H., Huang, T., Yuan, X., …Sims-Williams, D. B. (2022). Representative On-Road Aerodynamic Yaw Angle Distribution in China for Vehicle Development. SAE International Journal of Passenger Vehicle Systems, 16(2), https://doi.org/10.4271/15-16-02-0008

Aerodynamic drag for road vehicles is most often assessed based on zero yaw conditions. The rise of electric vehicles in recent years put greater demand on how the vehicles perform in real-world conditions. Specifically, the aerodynamic drag performa... Read More about Representative On-Road Aerodynamic Yaw Angle Distribution in China for Vehicle Development.

Large Eddy Simulation of incident flows around polygonal cylinders (2021)
Journal Article
Masoudi, E., Gan, L., & Sims-Williams, D. (2021). Large Eddy Simulation of incident flows around polygonal cylinders. Physics of Fluids, 33(10), Article 105112. https://doi.org/10.1063/5.0063046

In this study, we carry out large eddy simulation (LES) of incident flow around polygonal cylinders of side number N = 5 − 8 at Reynolds number Re= 104 . In total, six incidence angles (α) are studied on each cylinder ranging from face to corner orie... Read More about Large Eddy Simulation of incident flows around polygonal cylinders.

Near wake flow features of polygonal cylinders in different incidence angles (2021)
Presentation / Conference Contribution
Masoudi, E., Gan, L., & Sims-Williams, D. (2021, September). Near wake flow features of polygonal cylinders in different incidence angles. Paper presented at UK Fluids Conference 2021, Online

In this study, large eddy simulation (LES) is used to simulate flow of incidence angle α around polygonal cylinders of side number N=5-8 at Reynolds number Re=10,000. Six incidence angles are studied on each cylinder, which covers the entire α spect... Read More about Near wake flow features of polygonal cylinders in different incidence angles.

Round-robin tests of porous disc models (2019)
Journal Article
Aubrun, S., Bastankhah, M., Cal, R., Conan, B., Hearst, R., Hoek, D., Hölling, M., Huang, M., Hur, C., Karlsen, B., Neunaber, I., Obligado, M., Peinke, J., Percin, M., Saetran, L., Schito, P., Schliffke, B., Sims-Williams, D., Uzol, O., Vinnes, M., & Zasso, A. (2019). Round-robin tests of porous disc models. Journal of Physics: Conference Series, 1256, https://doi.org/10.1088/1742-6596/1256/1/012004

Three Dimensional Beamforming for Improved Noise Source Localisation (2017)
Presentation / Conference Contribution
Sims-Williams, D., Kounenis, C., Dominy, R., & Oettle, N. Three Dimensional Beamforming for Improved Noise Source Localisation. Presented at 10th FKFS Conference Progress in Vehicle Aerodynamics and Thermal Management, Stuttgart, Germany