Aerodynamic efficiency and performance enhancement of fixed-wing UAVs

P Panagiotou, K Yakinthos - Aerospace Science and Technology, 2020 - Elsevier
The present work aims in providing guidelines for the aerodynamic and performance
optimization of fixed-wing Unmanned Aerial Vehicles (UAVs) that operate in the low-speed …

Aerodynamic efficiency of gliding birds vs comparable UAVs: a review

C Harvey, DJ Inman - Bioinspiration & Biomimetics, 2021 - iopscience.iop.org
Here, we reviewed published aerodynamic efficiencies of gliding birds and similar sized
unmanned aerial vehicles (UAVs) motivated by a fundamental question: are gliding birds …

Architecture design and performance analysis of a hybrid hydrogen fuel cell system for unmanned aerial vehicle

E Ozbek, G Yalin, MU Karaoglan, S Ekici… - International Journal of …, 2021 - Elsevier
The flight endurance of UAV systems is an important issue that restricts the operational
capabilities. Thus, different energy systems and alternative onboard energy generation …

Conceptual design of a blended wing body MALE UAV

P Panagiotou, S Fotiadis-Karras, K Yakinthos - Aerospace Science and …, 2018 - Elsevier
The current work is an aerodynamic design study of a Blended Wing Body (BWB) Medium-
Altitude-Long-Endurance (MALE) Unmanned-Aerial-Vehicle (UAV). Using a combined …

Aerodynamic design of a MALE UAV

P Panagiotou, P Kaparos, C Salpingidou… - Aerospace Science and …, 2016 - Elsevier
In the present study the aerodynamic design procedure of a Medium-Altitude-Long-
Endurance (MALE) Unmanned-Aerial-Vehicle (UAV) is presented. The procedure is broken …

Effect of winglets induced tip vortex structure on the performance of subsonic wings

G Narayan, B John - Aerospace Science and Technology, 2016 - Elsevier
This paper presents the comparative study of the effectiveness of three different winglet
designs in reducing lift induced drag by changing the number of vortices and vortex …

Experiment and computation multi-fidelity multi-objective airfoil design optimization of fixed-wing UAV

T Phiboon, K Khankwa, N Petcharat… - Journal of Mechanical …, 2021 - Springer
Optimization with a surrogate model is a popular method used in design to avoid a high
computational cost problem and is often encountered in computational fluid dynamics and …

Conceptual design and CFD analysis of a new prototype of agricultural aircraft

PD Bravo-Mosquera, HD Cerón-Muñoz… - Aerospace Science and …, 2018 - Elsevier
In the agricultural aviation, there are several aerodynamic factors that must be optimized in
order to contribute to the successful application of agricultural products, such as the high …

Fuel efficiency improvement on a business jet using a camber morphing winglet concept

JP Eguea, GPG Da Silva, FM Catalano - Aerospace Science and …, 2020 - Elsevier
International aviation regulations on emissions are becoming more strict. In a scenario
where the traditional configuration is reaching maximum efficiency, new technologies may …

Conceptual design of a hybrid solar MALE UAV

P Panagiotou, I Tsavlidis, K Yakinthos - Aerospace Science and …, 2016 - Elsevier
This study presents the conceptual design of a hybrid solar Medium-Altitude-Long-
Endurance Unmanned-Aerial-Vehicle (MALE UAV) designed to perform surveillance-related …