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首页> 美国政府科技报告 >Cartesian-Grid Simulations of a Canard-Controlled Missile with a Free-Spinning Tail
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Cartesian-Grid Simulations of a Canard-Controlled Missile with a Free-Spinning Tail

机译：具有自由旋转尾部的鸭式控制导弹的笛卡尔网格模拟

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The proposed paper presents a series of simulations of a geometrically complex, canard-controlled, supersonic missile with free-spinning tail fins. Time-dependent simulations were performed using an inviscid Cartesian-grid-based method with results compared to both experimental data and high-resolution Navier-Stokes computations. At fixed free stream conditions and canard deflections, the tail spin rate was iteratively determined such that the net rolling moment on the empennage is zero. This rate corresponds to the time-asymptotic rate of the free-to-spin fin system. After obtaining spin-averaged aerodynamic coefficients for the missile, the investigation seeks a fixed-tail approximation to the spin-averaged aerodynamic coefficients, and examines the validity of this approximation over a variety of freestream conditions.

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