Flow Separation Control of a Vertical Stabiliser using a Rudder-mounted Slat

Muhammad, Mahmud Jamil; Wang, Yaxing; Mao, Xuerui; Choi, Kwing-So

Abstract

A joint study utilising experimental and numerical methods was carried out to investigate the aerodynamic effect of a rudder-mounted slat on a vertical stabiliser. The wind tunnel test results showed that the side force coefficient was increased more than 3% with a negligible increase in drag when the rudder deflection angle was set to d = 30°. Large eddy simulation (LES) results suggested that the rudder-mounted slap can increase the circulation around the vertical stabiliser, showing that the flow from the upstream recirculating regions was drawn towards the rudder surface. Associated changes in the turbulent flow field, including the mean and turbulent flow field and the vortical structure are also presented to understand the flow control mechanism by the rudder-mounted slat.

Citation

Muhammad, M. J., Wang, Y., Mao, X., & Choi, K.-S. (2025). Flow Separation Control of a Vertical Stabiliser using a Rudder-mounted Slat. Flow, Turbulence and Combustion, https://doi.org/10.1007/s10494-025-00640-z

• Journal Article Type: Article
• Acceptance Date: Jan 20, 2025
• Online Publication Date: Feb 24, 2025
• Publication Date: Feb 24, 2025
• Deposit Date: Feb 25, 2025
• Publicly Available Date: Feb 25, 2025
• Print ISSN: 1386-6184
• Electronic ISSN: 1573-1987
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1007/s10494-025-00640-z
• Public URL: https://nottingham-repository.worktribe.com/output/45854537
• Publisher URL: https://link.springer.com/article/10.1007/s10494-025-00640-z