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首页> 外文期刊>The Archive of Mechanical Engineering >Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes
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Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

机译：优化的倒置联合翼飞机概念飞机和经典配置飞机的性能比较

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The joined wing concept is an unconventional airplane configuration, known since the mid-twenties of the last century. It has several possible advantages, like reduction of the induced drag and weight due to the closed wing concept. The inverted joined wing variant is its rarely considered version, with the front wing being situated above the aft wing. The following paper presents a performance prediction of the recently optimized configuration of this airplane. Flight characteristics obtained numerically were compared with the performance of two classical configuration airplanes of similar category. Their computational fluid dynamics (CFD) models were created basing on available documentation, photographs and some inverse engineering methods. The analysis included simulations performed for a scale of 3-meter wingspan inverted joined wing demonstrator and also for real-scale manned airplanes. Therefore, the results of CFD calculations allowed us to assess the competitiveness of the presented concept, as compared to the most technologically advanced airplanes designed and manufactured to date. At the end of the paper, the areas where the inverted joined wing is better than conventional airplane were predicted and new research possibilities were described.
机译：自上世纪20年代中期以来，这种联合机翼概念是一种非常规的飞机配置。它具有几个可能的优点，例如减少了由于封闭机翼概念引起的阻力和重量。倒置连接机翼是其很少考虑的版本，其前机翼位于后机翼上方。以下论文介绍了该飞机最近优化配置的性能预测。将通过数值获得的飞行特性与类似类别的两架经典配置飞机的性能进行比较。他们的计算流体动力学（CFD）模型是根据可用的文档，照片和一些逆向工程方法创建的。该分析包括对3米翼展，倒置连接机翼演示器和真实载人飞机进行的仿真。因此，与迄今为止设计和制造的技术最先进的飞机相比，CFD计算结果使我们能够评估所提出概念的竞争力。在论文的最后，预测了倒接机翼比传统飞机更好的区域，并描述了新的研究可能性。

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