A Computational Study on the Aerodynamic Influence of a Propeller on an MAV by Unstructured Overset Grid Technique and Low Mach Number Preconditioning

S. Deng; B.W. van Oudheusden; T. Xiao; H. Bijl

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A Computational Study on the Aerodynamic Influence of a Propeller on an MAV by Unstructured Overset Grid Technique and Low Mach Number Preconditioning

机译：螺旋桨对MAV的空气动力学影响的非结构化重叠网格技术和低马赫数预处理的计算研究。

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The influence of a propeller on the aerodynamic performance of an MAV is investigated using an unstructuredoverset grid technique. The flow regime of a fixed-wing MAV powered by a propeller contains both incompressibleregions due to the low flight speed, as well as compressible flow areas near the propeller-tip region. In order to simulateall speed flow efficiently, a dual-time preconditioning method is employed in the present study. The methodology in thispaper is verified as providing a reliable numerical simulation tool for all flow regimes, in the additional presence ofmoving boundaries, which is treated with an overset grid approach.

机译：使用非结构化重叠网格技术研究了螺旋桨对MAV气动性能的影响。由螺旋桨提供动力的固定翼MAV的流动状态包含由于低飞行速度的不可压缩区域以及靠近螺旋桨尖端区域的可压缩流动区域。为了有效地模拟所有速度流，本研究采用了双重时间预处理方法。经过验证，本文中的方法可为所有流态提供可靠的数值模拟工具，同时还存在移动边界，并使用过顶网格方法进行处理。

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《The Open Aerospace Engineering Journal》 |2012年第1期|共11页
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S. Deng; B.W. van Oudheusden; T. Xiao; H. Bijl;
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中图分类航空、航天技术的研究与探索;
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A Computational Study on the Aerodynamic Influence of a Propeller on an MAV by Unstructured Overset Grid Technique and Low Mach Number Preconditioning

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