Numerical simulation of flow past a flat plate with anti-singing trailing edge. (November 2019)

• Record Type: Journal Article
• Authors: Maheswari, Anurag; Kumar, Niraj; Singh, Vineet; Saxena, Vishal; Kumar Singh, Manoj
• Is Part Of: IOP conference series. Volume 691(2019)
• Publication Date: 2019-11
• Subjects: Vortex shedding -- Wake -- Trailing edge -- Lift -- Drag -- Singing; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/691/1/012021
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Aerofoil with anti-singing trailing edge has been seen as the treatment to eliminate singing. The present study numerically investigates the bevel and chamfer anti-singing trailing edges with rounded ones in flat plates. The effects of 25°, 45°, 10° bevel and 15°, 45° chamfer angles provided at the trailing edge of the flat plate on the aerodynamic characteristics are systematically compared with rounded ones at a Reynolds number of 1.5x10 5 and 25°, 30° and 45° angle of attack. The substantial reduction of primary vortex shedding frequency is observed in 25°, 45°, 10° bevel and 15°, 45° chamfer trailing edges as compared to the rounded one. Also, the presence of broader wake profile indicates higher drag in rounded trailing edge geometry as compared to anti-singing trailing edges. Thus, the present study demonstrates that the 45° and 10° bevel trailing edge could provide better anti-singing behavior and aerodynamic performance in comparison with 25° bevel, 15°, 45° chamfer and rounded trailing edge.