文档介绍：南京航空航天大学
硕士学位论文
15厘米固定翼微型飞行器总体设计与性能分析
姓名:李晨
申请学位级别:硕士
专业:飞行器设计
指导教师:昂海松
20070301
南京航空航天大学硕士学位论文
摘要

15 厘米是研究微型飞行器低雷诺数空气动力特性的典型尺寸。该尺寸下的
固定翼微型飞行器设计将同时涉及由低雷诺数流动和小展弦比机翼引起的复杂
的气动问题。
本文在研究低雷诺数流动和小展弦比机翼空气动力特性的基础上,进行 15
厘米固定翼微型飞行器气动外形的设计。从动量理论和叶素理论出发,建立了
分析微型飞行器螺旋桨拉力特性的数值模型,并通过实验验证了模型的适用性。
以此为基础,确定 15 厘米固定翼微型飞行器的总体设计方案。基于以 Euler 方
程和 Navier-Stokes 方程为基础的有限体积法的流体动力学方程求解方法,对微
型飞行器设计方案进行了空气动力数值模拟,并进行了风洞实验,研究其流场
流动特性。通过计算和实验结果的分析,验证和确定总体设计方案的可行性。
根据得到的空气动力数据,进行微型飞行器飞行性能分析。

关键词:微型飞行器;总体设计;气动特性计算;风洞实验;性能分析
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15 厘米固定翼微型飞行器总体设计与性能分析
Abstract

15cm is the classic dimension for study the aerodynamic characteristics of micro
air vehicles at low Reynolds numbers. To design the 15cm fixed-wing micro air
vehicle, the plex aerodynamic problems at low Reynolds numbers for low
Aspect-ratio wings will be faced.
Based on the study of aerodynamic characteristics of the low Aspect-ratio wings
at low Reynolds number flows, the shape design of the 15cm fixed-wing micro air
vehicle was given. Based on the momentum theory and blade element theory, a
numerical modeling is made to analyze the micro aero vehicle’s airscrew’s thrust
characteristics. The modeling applicability is validated through tests. And based on
these, the conceptual design scheme is confirmed. Using finite volume method based
on the Euler formula and Navier-stokes formula, a numerical modeling is made.
Numerical simulations are made to test the micro air vehicle’s aerodynamic
characteristics. Wind tunnel tests are taken to research the flow field’s characteristics.
To analysis puting and test results, the feasibility of conceptrual design is
verified. Using the aerodynamic data, the micro air vehicle’s flying performances are
analyzed.

Key words: micro air vehicle, conceptrual design, aerodynamic performance
calculation, wind tunnel test, performance analysis
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15 厘米固定翼微型飞行器总体设计与性能分析
图表清单
图第一代 Black Widow ................................