全電動翼胴合一防鳥擊飛機之氣動力分析

On the Aerodynamic Analysis of a Modern All Electric Powered Blended Wing Body Aircraft with Bird Strike Resistance Device

詹煌祿(Huang-Lu Zhan)

指導教授 ： 宛同

淡江大學/工學院/航空太空工程學系碩士班/碩士(2021年)

https://doi.org/10.6846/TKU.2021.00054

摘要

論文提要內容：
翼胴合一（BWB）是最經濟的飛機配置之一，全電動飛機通過減少污染將成為未來的主流。鳥擊一直是航空安全的重大問題，因此在電風扇進風口前發明了錐形的鳥擊防護網。本研究的目的是對全電動 BWB 和防鳥撞網進行空氣動力學分析。在驗證 DLR F6 模型後，用相同的數值模擬工具應用於我們設計的外型。主要研究成果:（1）發明一種具有足夠起飛和巡航推力的全電動涵道風扇，（2）詳細研究了發動機運轉情況下巡航（0.7馬赫和FL280）時BWB的氣動特性，以及(3) 估計其起降場長度。發現我們的防鳥撞網約佔總阻力的 19%，我們的發現將有助於下一代飛機的設計，而未來可能仍需要優化當前的電動涵道風扇發動機和 BWB 配置，因此代表其空氣動力學性能有更大的增長潛力。

關鍵字

翼胴合一 ； 全電動飛機 ； 防鳥擊裝置

並列摘要

Blended-wind-body (BWB) is one of the most economical aircraft configuration, and all-electric aircraft will be the future mainstream by reducing pollutions. Bird strikes have always been a major aviation safety problem, so a cone-shaped bird-strike prevention net in front of electric fan inlet is invented. Objectives of this study are the aerodynamic analyses of all-electric powered BWB and bird strike resistance net. After validation of DLR F6 model, same numerical simulation tools then applied to our designated configurations. Major research findings are (1) invention of an all-electric ducted-fan with enough thrust produced for take-off and cruise, (2) detailed investigation of BWB’s aerodynamic characteristics during cruise (0.7 Mach and FL280) with power on situation, and (3) estimation of its take-off and landing field lengths. It is found that our bird strike resistance net account for about 19% of total drag, and our findings will be helpful for next generation aircraft design, while future optimization of current electric ducted-fan engine and BWB configuration might still be needed, thus represent more potential growth in its aerodynamic performance.

並列關鍵字

BWB ； All Electric Powered ； Bird Strike Resistance Device

參考文獻

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