Delaunay Graph Mapping-Based Mesh Deformation for Simulation of a Spanwise Rigid and flexible Flapping NACA0012 Wing Using DES with Parallel Implementation

Durrani, Naveed; Chaudhry, Sajid Raza; Qin, Ning

doi:10.2514/6.2011-1266

Cited by 2 publications

(1 citation statement)

References 14 publications

(6 reference statements)

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“…Referring to [24], a rectangular wing with a cross-sectional NACA0012 airfoil profile was taken as the research object, whose lift and thrust under different parameters were studied.…”

Section: Numerical Analysismentioning

confidence: 99%

The Sensitivity of Aerodynamic Forces to Multi-parameters in a Bird-like Flapping Wing

Ding

2018

J. Eng. Technol. Sci.

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The sensitivity of aerodynamic forces in a bird-like flapping wing was numerically studied by analyzing the aerodynamic force states under different parameters. First, the physical model and the kinematic model of the bird-like flapping wing were separately established. Then the aerodynamic force model was established and some important parameters were analyzed by adopting the Taguchi orthogonal method. Finally, a simulation was carried out, from which the order of the parameters was separately determined according to the parameters' effect on lift or thrust. The results showed that increasing the flapping frequency is one of the most important ways to increase lift and thrust. The lift can be increased by increasing the flight velocity, while the thrust can be increased by increasing the maximum flapping angle. The lift or the thrust becomes larger when the incidence angle is approximately  35 or  55 .

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“…Referring to [24], a rectangular wing with a cross-sectional NACA0012 airfoil profile was taken as the research object, whose lift and thrust under different parameters were studied.…”

Section: Numerical Analysismentioning

confidence: 99%

The Sensitivity of Aerodynamic Forces to Multi-parameters in a Bird-like Flapping Wing

Ding

2018

J. Eng. Technol. Sci.

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A new grid deformation technology with high quality and robustness based on quaternion

Huang

Gao

Wang

2014

Chinese Journal of Aeronautics

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Quality and robustness of grid deformation is of the most importance in the field of aircraft design, and grid in high quality is essential for improving the precision of numerical simulation. In order to maintain the orthogonality of deformed grid, the displacement of grid points is divided into rotational and translational parts in this paper, and inverse distance weighted interpolation is used to transfer the changing location from boundary grid to the spatial grid. Moreover, the deformation of rotational part is implemented in combination with the exponential space mapping that improves the certainty and stability of quaternion interpolation. Furthermore, the new grid deformation technique named ''layering blend deformation'' is built based on the basic quaternion technique, which combines the layering arithmetic with transfinite interpolation (TFI) technique. Then the proposed technique is applied in the movement of airfoil, parametric modeling, and the deformation of complex configuration, in which the robustness of grid quality is tested. The results show that the new method has the capacity to deal with the problems with large deformation, and the ''layering blend deformation'' improves the efficiency and quality of the basic quaternion deformation method significantly.

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Delaunay Graph Mapping-Based Mesh Deformation for Simulation of a Spanwise Rigid and flexible Flapping NACA0012 Wing Using DES with Parallel Implementation

Cited by 2 publications

References 14 publications

The Sensitivity of Aerodynamic Forces to Multi-parameters in a Bird-like Flapping Wing

The Sensitivity of Aerodynamic Forces to Multi-parameters in a Bird-like Flapping Wing

A new grid deformation technology with high quality and robustness based on quaternion

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