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中文摘要：
为研究高超声速弹道导弹外形(HBS)在大振幅条件下的动态运动特性,采用空间二阶精度的NND格式和含双时间步法的AF-ADI隐式时间方法离散非定常N-S方程,数值模拟了HBS标模以不同振幅、频率强迫俯仰运动的非定常流场.模拟得到了大振幅强迫振动HBS外形下的气动力/力矩特性以及非定常运动的流场显示,结果表明,大振幅俯仰运动条件下HBS标模的气动力/力矩具有迟滞特性,并受到俯仰振动幅度和频率的影响.
英文摘要：
In order to study the dynamic characteristics of Hyper Ballistic Shape(HBS) with large amplitude force-pitching,the second-order NND spatial scheme and the AF-ADI method with dual time step were employed for discrete of unsteady N-S equations,and the flow-field of HBS with force-pitching under several amplitudes and frequencies were simulated.Dynamic characteristics of aerodynamics and moment as well as visualization of unsteady flow-field,were achieved.The results show that the aerodynamics/moment of HBS u...
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