Large eddy simulations of unsteady flows over a stationary airfoil

Qin, Shiwei; Koochesfahani, Manoochehr; Jaberi, Farhad

doi:10.1016/j.compfluid.2017.11.014

Cited by 18 publications

(3 citation statements)

References 16 publications

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“…The large-eddy simulation (LES) was carried out using the finite volume software Fluent by solving the time-dependent incompressible Navier-Stokes equations. Here, the wall-adapting local eddyviscosity (WALE) scheme was employed to model the subgrid eddy viscosity (Qin et al 2018). The pressure-based coupled solver was selected, and the momentum equations were discretised using the bounded central differencing (BDC) scheme (Zhu and Rodi 1991).…”

Section: Numerical Set-upmentioning

confidence: 99%

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

Muhammad

Wang

Mao

et al. 2023

Preprint

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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 by up to 4% while the drag coefficient was unchanged when the rudder deflection angle was set to δ = 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.

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Section: Numerical Set-upmentioning

confidence: 99%

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

Muhammad

Wang

Mao

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…As an airfoil specifically designed for low Reynolds number applications, the Selig-Donovan 7003 (SD7003) [33,34] has been recently investigated at Re = 6 × 10 4 employing LES [35,36,2].…”

Section: Introductionmentioning

confidence: 99%

“…He concluded that high T u values managed to reduce and even suppress the LSB, thereby enhancing aerodynamic performance. Freestream unsteadiness effects were also assessed by Qin et al [36], this time by exploring different inlet velocity oscillation amplitudes and frequencies, at the same α = 4 • . Flow separation was delayed and even suppressed during the acceleration phase, while the separation point progressed upstream towards the leading edge in the deceleration phase.…”

Section: Introductionmentioning

confidence: 99%