Distributed propellers are promising candidates for reducing the drag and augmenting the lift of wings on future aircraft concepts. A better understanding of the underlying flow physics as well as better simulation capabilities have been identified as key enablers for the realization of distributed propulsion flight vehicles. For these reasons, this paper presents the application of a coupled lifting line-RANS code making use of body forces to model the propeller effect on the flow. Comparison to meshed propeller URANS simulations shows very close agreement. The presented results show possible reductions in wing drag of 10.0% for a wing-tip mounted tractor propeller and a propeller efficiency increases of 8.7% for a wing-tip pusher configuration. Non-twisted and ideally-twisted wing geometries are compared. Additionally, significant lift augmentation is achieved with over-the-wing (up to 107%) and leading-edge (up to 60%) mounted propellers.
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机译：分布式螺旋桨是有希望的候选人，用于减少拖延并增强未来飞机概念的翅膀的升力。更好地了解潜在的流量物理学以及更好的仿真能力已被识别为实现分布式推进车辆的关键推动因素。由于这些原因，本文介绍了耦合升降线路 - RAN RANS RANS编码的应用，利用身体力来模拟流量的螺旋桨效应。与网状螺旋桨urans模拟的比较显示非常密切的协议。所呈现的结果表明，翼尖安装拖拉机螺旋桨的翼拖杆的可能降低了10.0％，螺栓推动器配置的螺旋桨效率增加了8.7％。比较非扭曲和理想扭曲的翼状物质。此外，通过过翼（高达107％）和前缘（高达60％）安装的螺旋桨实现了显着的提升增强。
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