Numerical Simulation of Transonic Flows over a Wing with a Store Separation
碩士 === 國立虎尾科技大學 === 航空與電子科技研究所 === 99 === Aerodynamic problems involving moving objects have many applications, including store separation, takeoff and landing, and aircraft aerodynamics. With the advancement of wind tunnel testing and computational fluid dynamic (CFD) techniques, the prediction of...
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| Format: | Others |
| Language: | zh-TW |
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2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/6jzbnz |
| Summary: | 碩士 === 國立虎尾科技大學 === 航空與電子科技研究所 === 99 === Aerodynamic problems involving moving objects have many applications, including store separation, takeoff and landing, and aircraft aerodynamics. With the advancement of wind tunnel testing and computational fluid dynamic (CFD) techniques, the prediction of carriage and trajectory data is possible. These techniques can provide comparable results useful in aircraft/store analyses.
Trajectory prediction is an important element in CFD simulations of bodies undergoing unconstrained, or partially constrained motion. The advanced Chimera CFD technique is applied to accurate numerical calculation of aerodynamics involving multiple bodies with relative motion. The complex physics and fluid dynamics phenomena of the aerodynamic interference for multibody problems are investigated. Maximum savings of time and dollars can be achieved when CFD is brought into weapon system development programs in the design process.
The main content of this paper is to investigate 3D transonic flow around a store released from a wing. The geometry is a wing-store configuration consisting of a clipped delta wing with a 45-degree sweep and a constant NACA 64A010 airfoil section. The 3-D Euler solutions are obtained on Chimera meshes.
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