The transition characteristics around the leading edge of a swept-back wing shape were numerically investigated. We conducted direct numerical simulations (DNSs) swept-wing with high Reynolds number Re=Rec/cos ?=5.85×106 based on chord length sweep angle ?=70°. In study, randomly distributed impulsive local body force was applied at wall to encourage transition. Through forcing, two coherent wa...

In this paper a method is presented to generate uniform hexahedral meshes automatically. In this method, a solid model with complex geometry is decomposed into swept volumes with simpler geometry. A sweepable face on the solid model is selected as the generator face to generate a swept volume. Each generator face is specified with node density and a quadrilateral mesh is generated from it. Then...

Wing rock is a highly nonlinear phenomenon in which the aircraft undergoes limit cycle roll oscillations at high angles of attack. A single neuron control scheme for suppression of wing rock of slender delta wings is presented. The effectiveness of the control scheme is demonstrated through software simulation and real-time control experiments in a wind tunnel on a 80 swept back wing. The suppr...

Min. hip  – – 0.12 0.11 0.06 0.22 – – – – – – Min. knee  – – – – 0.15 0.28 – – 0.11 0.17 0.10 0.17 Min. ankle  0.06 –0.06 – – 0.10 0.30 0.10 –0.05 – – – – Min. MTP  0.15 0.20 – – 0.05 0.17 0.10 0.09 – – – – Min. rotation  – – – – – – – – 0.14 0.22 0.15 0.17 Total  swept hip – – – – 0.09 0.16 – – – – – – Total  swept knee – – – – – – – – 0.08 0.17 0.07 0.20 Total  swept ankle 0.10 –0.04 ...

In this study, we develop an ultra-fast fiber Bragg grating sensor system that is based on the Fourier domain mode-locked (FDML) swept laser. A FDML wavelength swept laser has many advantages compared to the conventional wavelength swept laser source, such as high-speed interrogation, narrow spectral sensitivity, and high phase stability. The newly developed FDML wavelength swept laser shows a ...

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The sweeping algorithm is a classical algorithm that can generate high quality hexahedral meshes for swept volumes. However, the traditional sweeping algorithm can only generate single axis swept meshes. In order to expand the scope of the model that sweeping algorithms are applicable to, this paper proposes a global multi-axis swept mesh generation approach, which can robustly generate hexahed...