Further Investigation of the Support System Effects and Wing Twist on the NASA Common Research Model
Further Investigation of the Support System Effects and Wing Twist on the NASA Common Research Model
复制标题
进一步研究 NASA 通用研究模型的支撑系统效应和机翼扭转
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
R. L. Campbell
中科院分区：
文献类型：
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作者：
Melissa Rivers;C. Hunter;R. L. Campbell
在NASA兰利国家跨音速设备和NASA Ames 11英尺跨音速风洞设备中进行了NASA共同研究模型的实验研究，以用于阻力预测研讨会。随着实验研究数据的收集，实验和第四届阻力预测研讨会的计算数据之间存在着很大的差异。这种差异导致了一项计算评估，以调查模型支持系统对共同研究模型的干扰影响。研究结果表明，在算例中加入支撑系统确实增加了俯仰力矩，使其与实验结果更接近，但俯仰力矩仍有较大差异。这一巨大差异导致对建成模型的形状进行了调查，这反过来又导致计算网格的改变和以前所有支助系统案例的重新运行。这些案例的结果是本文的重点。
An experimental investigation of the NASA Common Research Model was conducted in the NASA Langley National Transonic Facility and NASA Ames 11-foot Transonic Wind Tunnel Facility for use in the Drag Prediction Workshop. As data from the experimental investigations was collected, a large difference in moment values was seen between the experiment and computational data from the 4th Drag Prediction Workshop. This difference led to a computational assessment to investigate model support system interference effects on the Common Research Model. The results from this investigation showed that the addition of the support system to the computational cases did increase the pitching moment so that it more closely matched the experimental results, but there was still a large discrepancy in pitching moment. This large discrepancy led to an investigation into the shape of the as-built model, which in turn led to a change in the computational grids and re-running of all the previous support system cases. The results of these cases are the focus of this paper.