Study of the influence of turbulent flows on the aerodynamic performance of fixed-wing aircraft type UAV MALE

Q2 Engineering

INCAS Bulletin Pub Date : 2023-12-02 DOI:10.13111/2066-8201.2023.15.4.9

Catalin Cucu, Cristina Pupaza, Bart Janssens, Mihai MIHAILA-ANDRES

引用次数: 0

Abstract

A study of the air behavior in the near-wake region of the NACA0012 airfoil infinite wing model at low Reynolds numbers was conducted. The study consisted of comparing the results obtained from experiments with those from numerical simulations. The numerical results of the velocity profiles in the near-wake region showed good agreement with those provided by the PIV system for most of the simulations and those in the literature. In addition, boundary layer separation and reattachment forming a laminar separation bubble along the airfoil was captured using simulations in Ansys Fluent and compared with a literature database to better confirm the simulation results. The UAVs have a complex cross-section shape of the fuselage. The second part of this paper explores the aerodynamic consequences of its shape, at the operational flight ceiling, in a comparative approach for three different fuselage designs.

查看原文本刊更多论文

湍流对 MALE 型无人机固定翼飞机气动性能影响的研究

对低雷诺数下NACA0012翼型无限翼模型近尾流区空气行为进行了研究。这项研究包括将实验结果与数值模拟结果进行比较。近尾迹区速度分布的数值计算结果与PIV系统提供的大部分模拟结果和文献中的结果吻合较好。此外，利用Ansys Fluent进行仿真，捕捉了沿翼型形成层流分离泡的边界层分离和再附着过程，并与文献数据库进行对比，更好地验证了仿真结果。无人机有一个复杂的机身横截面形状。本文的第二部分探讨了其形状的空气动力学后果，在操作飞行天花板，在一个比较的方法为三种不同的机身设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

INCAS Bulletin Engineering-Aerospace Engineering

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： INCAS BULLETIN is a scientific quartely journal published by INCAS – National Institute for Aerospace Research “Elie Carafoli” (under the aegis of The Romanian Academy) Its current focus is the aerospace field, covering fluid mechanics, aerodynamics, flight theory, aeroelasticity, structures, applied control, mechatronics, experimental aerodynamics, computational methods. All submitted papers are peer-reviewed. The journal will publish reports and short research original papers of substance. Unique features distinguishing this journal: R & D reports in aerospace sciences in Romania The INCAS BULLETIN of the National Institute for Aerospace Research "Elie Carafoli" includes the following sections: 1) FULL PAPERS. -Strength of materials, elasticity, plasticity, aeroelasticity, static and dynamic analysis of structures, vibrations and impact. -Systems, mechatronics and control in aerospace. -Materials and tribology. -Kinematics and dynamics of mechanisms, friction, lubrication. -Measurement technique. -Aeroacoustics, ventilation, wind motors. -Management in Aerospace Activities. 2) TECHNICAL-SCIENTIFIC NOTES and REPORTS. Includes: case studies, technical-scientific notes and reports on published areas. 3) INCAS NEWS. Promote and emphasise INCAS technical base and achievements. 4) BOOK REVIEWS.