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Aerospace
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14th EASN International Conference on Innovation in Aviation & Space...
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14th EASN International Conference on Innovation in Aviation & Space towards Sustainability Today & Tomorrow

A special issue of Aerospace (ISSN 2226-4310).

Deadline for manuscript submissions: 17 February 2025 | Viewed by 1767

Special Issue Editors

Prof. Dr. Spiros Pantelakis

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Guest Editor
Honorary Chairman of the European Aeronautics Science Network Association (EASN); Professor Emeritus at the University of Patras, Panepistimioupolis Rion, 26500 Patras, Greece
Interests: aeronautical materials and structures; sustainability and circularity in aviation; intelligent design of aircraft structures with regards to sustainability; fatigue of aircraft materials and structures; ageing aircraft; structural integrity; characterization and manufacturing processes of polymers, thermosetting and thermoplastic composites; nanocomposites and nanocrystalline alloys; multifunctional and self-healing materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Andreas Strohmayer

E-Mail Website
Guest Editor
Chairman of the European Aeronautics Science Network Association (EASN), Head of Department Aircraft Design, Institute of Aircraft Design (IFB), University of Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany
Interests: aircraft design; conventional and unconventional configurations; aircraft systems; operational aspects; certification; electric and hybrid-electric flight; alternative propulsion systems; flight testing; unmanned aerial vehicles; scaled flight testing
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Nikolaos Michailidis

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Guest Editor
Physical Metallurgy Laboratory (PML), Department of Mechanical Engineering, School of Engineering, Aristotle University of Thessaloniki (AUTH), Athens, Greece
Interests: additive manufacturing; powder atomization; powder metallurgy; porous materials; biomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is cooperating with the 14th EASN International Conference on “Innovation in Aviation & Space towards Sustainability Today & Tomorrow”, which will be held by the EASN Association and the Aristotle University of Thessaloniki, and will take place in Thessaloniki, Greece from the October 8th to 11th, 2024.

This conference is all about engaging in a lively exchange of ideas. It will feature prominent figures from Europe’s Aviation and Space sectors, representing academia, industry, research, and policymaking, who will share their valuable insights during the Plenary Talks. The conference will offer a platform for scientists and researchers worldwide to present their latest discoveries across various thematic sessions. These sessions, thoughtfully curated by respected experts, aim to facilitate knowledge exchange and foster collaboration.

Beyond the research presentations, this conference aspires to be a hub for European Dissemination and Exploitation. Participants will have the opportunity to showcase ongoing projects, celebrate milestones, delve into current trends, and explore future requirements within the aviation and space domains, with a focus on forging connections and synergies. Notably, esteemed policy development projects will also be featured, shedding light on the strategic priorities guiding the European aviation sector toward sustainability.

Authors of outstanding papers related to the topic of aviation and space are invited to submit extended versions of their work to this Special Issue for publication.

We are looking forward to welcoming you to Thessaloniki and the 2024 EASN International Conference, and invite submissions of extended conference papers to this Special Issue. We hope that the conference will be another successful, in-person gathering of the EASN Association.

Prof. Dr. Spiros Pantelakis
Prof. Dr. Andreas Strohmayer
Prof. Dr. Nikolaos Michailidis
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aerostructures: materials & structures, manufacturing
  • aerostructures manufacturing
  • from Industry 4.0 to Industry 5.0
  • flight physics
  • hydrogen in aviation
  • fuels & energy storage
  • propulsion
  • hybrid electric flight
  • avionics, systems & equipment
  • human factors
  • aircraft design and optimization
  • small air transport (SAT) technologies
  • innovative concepts & scenarios
  • synergies and technology transfer with other industries
  • air traffic management & airports
  • maintenance, repair & overhaul (MRO)
  • unmanned aerial systems
  • UAS & scaled flight testing
  • space technologies
  • ecoDESIGN and engineering for sustainability
  • safety, regulation and standards
  • european policy actions in the field of aviation & space

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Published Papers (2 papers)

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24 pages, 1213 KiB  
Article
A Comparative Analysis of Multi-Criteria Decision-Making Methods and Normalization Techniques in Holistic Sustainability Assessment for Engineering Applications
by Sonia Malefaki, Dionysios Markatos, Angelos Filippatos and Spiros Pantelakis
Aerospace 2025, 12(2), 100; https://doi.org/10.3390/aerospace12020100 - 29 Jan 2025
Viewed by 306
Abstract
The sustainability evaluation of engineering processes and structures is a multifaceted challenge requiring the integration of diverse and often conflicting criteria. To address this challenge, Multi-Criteria Decision-Making (MCDM) methods have emerged as effective tools. However, the selection of the most suitable MCDM approach [...] Read more.
The sustainability evaluation of engineering processes and structures is a multifaceted challenge requiring the integration of diverse and often conflicting criteria. To address this challenge, Multi-Criteria Decision-Making (MCDM) methods have emerged as effective tools. However, the selection of the most suitable MCDM approach for problems involving multiple criteria is critical to ensuring robust, reliable, and actionable outcomes. Equally significant is the choice of a proper normalization technique, which plays a pivotal role in determining the robustness and reliability of the results. This study investigates the impact of common MCDM tools on the decision-making process concerning diverse aspects of sustainability. It also examines how different normalization methods influence the final outcomes. Sustainability in this context is understood as a trade-off among five key dimensions: performance, environmental impact, economic impact, social impact, and circularity. The outcome of the MCDM process is represented by an aggregated metric, referred to as the Sustainability Index (SI). This index offers a comprehensive and robust framework for evaluating sustainability and facilitating decision-making when conflicting criteria are present. To assess the effects of implementing different MCDM and normalization choices on the sustainability assessment, a dataset from the aviation sector is employed. Specifically, a typical aircraft component is analyzed as a case study for holistic sustainability assessment, utilizing data that represent the various dimensions of sustainability mentioned above, for this component. Additionally, the study investigates the influence of initial data variations and weight variations within the MCDM process on the results. The results indicate that, overall, the different MCDM and normalization methods lead to similar outcomes when applied to the design alternatives. However, a deeper dive into the results reveals that the weighted sum method, when paired with min-max normalization, appears to be more appropriate, based on the use case involved for the present investigation, due to its robustness regarding small variations in the initial data and its sensitivity to large ones. This research underscores the critical importance of selecting appropriate MCDM tools and normalization methods to enhance transparency, robustness, reliability, and consistency of sustainability assessments within a holistic framework. Full article
(This article belongs to the Special Issue 14th EASN International Conference on Innovation in Aviation & Space towards Sustainability Today & Tomorrow)
23 pages, 11530 KiB  
Article
Winglet Design for Aerodynamic and Performance Optimization of UAVs via Surrogate Modeling
by Eleftherios Nikolaou, Spyridon Kilimtzidis and Vassilis Kostopoulos
Aerospace 2025, 12(1), 36; https://doi.org/10.3390/aerospace12010036 - 9 Jan 2025
Viewed by 773
Abstract
The aerodynamic performance of an aircraft can be significantly enhanced by incorporating wingtip devices, such as winglets, which primarily reduce lift-induced drag caused by wingtip vortices. This study introduces a comprehensive optimization framework for designing winglets on a Class I fixed-wing mini-UAV, aiming [...] Read more.
The aerodynamic performance of an aircraft can be significantly enhanced by incorporating wingtip devices, such as winglets, which primarily reduce lift-induced drag caused by wingtip vortices. This study introduces a comprehensive optimization framework for designing winglets on a Class I fixed-wing mini-UAV, aiming to maximize aerodynamic efficiency and operational performance. Using surrogate-based optimization (SBO) techniques, this research developed winglet geometries with varying geometric parameters such as length, cant angle, and sweep angle with their performance being evaluated through high-fidelity Computational Fluid Dynamics (CFD) simulations. These simulations utilized Reynolds-Averaged Navier–Stokes (RANS) equations coupled with the Spalart–Allmaras turbulence model to capture the intricate flow dynamics around the UAV in different flight phases. The integration of SBO techniques allowed for an efficient exploration of the design space while reducing computational costs associated with iterative high-fidelity simulations. In particular, the proposed SBO framework optimized the UAV’s aerodynamic characteristics, including lift-to-drag ratio and drag reduction, followed by a stability and control analyses to ensure balanced performance for the optimal configurations. Dynamic stability evaluations revealed improved flight characteristics, maintaining control across operational envelopes. The results demonstrated a significant improvement in aerodynamic coefficients, range, endurance, and reduction in battery consumption throughout the entire UAV operational envelope, underscoring the potential of innovative winglet designs to enhance UAV performance across diverse mission profiles. Full article
(This article belongs to the Special Issue 14th EASN International Conference on Innovation in Aviation & Space towards Sustainability Today & Tomorrow)
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