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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >An investigation into potential fuel savings for 110-130 seat passenger transport aircraft due to the incorporation of natural laminar flow or hybrid laminar flow control on the engine nacelles
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An investigation into potential fuel savings for 110-130 seat passenger transport aircraft due to the incorporation of natural laminar flow or hybrid laminar flow control on the engine nacelles

机译：由于在发动机机舱中采用了自然层流或混合层流控制，对110-130座位的客运飞机可能节省的燃料进行了调查

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摘要

A computer program, capable of accurately determining the required fuel for a given mission profile, has been developed for two 'project' aircraft types. The program was initially validated against reference aircraft and then modified to study the potential impact on trip fuel due to the incorporation of natural laminar flow or hybrid laminar flow control on the engine nacelles, by implementing changes the aircraft's drag coefficient (C_D), specific fuel consumption and operating empty weight. Trade studies, with changes to C_D, specific fuel consumption and operating empty weight, were conducted using trip fuel as the objective function. The results can be superimposed, permitting estimates of the trip fuel reduction due to the incorporation of alternative drag reduction designs. The impact of trip distance on the fuel-saving potential of laminar flow technologies has also been explored. The potential fuel savings for the aircraft fleet (with the incorporation of hybrid laminar flow control or natural laminar flow) has been estimated using an aircraft utilisation model (representing the probability of the aircraft flying a given stage length). It was concluded that there would be a net fuel saving based on the utilisation model. Finally, to obtain a realistic assessment of the potential benefit of these technologies, the probable time-in-cloud, which will result in a loss of laminar flow, has been considered.
机译：针对两种“项目”飞机类型，已经开发了一种能够准确确定给定任务曲线所需燃料的计算机程序。该程序最初针对参考飞机进行了验证，然后进行了修改，以研究通过改变飞机的阻力系数（C_D），特定燃料来对发动机机舱采用自然层流或混合层流控制对旅行燃油的潜在影响。消耗和空载重量。以旅行燃料为目标函数进行了贸易研究，改变了C_D，比燃料消耗和空载重量。结果可以叠加，从而可以估计由于合并了替代减阻设计而造成的旅行燃油减少量。还研究了行程距离对层流技术节油潜力的影响。使用飞机利用率模型（代表飞机飞行给定级长的概率）估计了飞机机队的潜在燃料节省（结合了混合层流控制或自然层流）。得出的结论是，根据利用模型，将节省净燃料。最后，为了获得对这些技术的潜在利益的现实评估，已经考虑了可能的云中时间，这将导致层流损失。

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