Progress in Aerospace Sciences最新文献

{"title":"Recent advances in feature extraction techniques for high-speed flowfields","authors":"S. Unnikrishnan","doi":"10.1016/j.paerosci.2023.100918","DOIUrl":"10.1016/j.paerosci.2023.100918","url":null,"abstract":"<div><p>Space–time scale-resolved diagnostic and computational campaigns routinely produce high-fidelity multi-disciplinary truth-model quality datasets for complex configurations. The extraction of the primary features of engineering or scientific interest and modeling of potential low-rank dynamics has proven challenging because of the massive sizes of the databases. One approach to overcome these challenges has been through system identification based decomposition techniques. In the present work, we build on comprehensive reviews on the subject by elucidating recent advances and applications for aerodynamic flow problems. Through a succinct but panoramic treatment exemplified with relevant applications, we expect to inform the reader of method capabilities in a manner that can guide selection strategies promising critical insights into complex fluid dynamics problems. The methods are broadly classified into modal-based and physics-based. Major advances in the former are extensions of the linear framework to non-homogeneous flowfields and Floquet analysis of secondary instability, applicable to broad ranges of complexity in basic states and speed regimes. Forced response analysis has aided our understanding of non-modal instability mechanisms which extend in some ways analogous to those in the global stability literature; applications to three-dimensional flows and operator-free concepts have been particularly illustrative. Advances in modal techniques for nonlinear flowfields have sharpened focus on prescribed spectral and interaction characteristics, expanded applicability to large-scale databases through streaming approaches, and integrated multi-physics into analyzed data. Physics-based techniques, motivated by the fundamental splitting theorem of Kovasznay, have proven particularly valuable in educing mechanisms sustaining multi-modal dynamics with unique physical aspects. Helmholtz decomposition combined with signal processing procedures have provided insights into the behavior of wall-bounded and free-shear turbulence, emphasizing the effects of compressibility on energy dynamics, coherent structures, and acoustics. The generalization of physics-based eduction techniques using momentum potential theory has improved our understanding of aeroacoustics of a broad class of flowfields, and further provided direction for flow control of shear-layer noise and hypersonic boundary layer dynamics.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"140 ","pages":"Article 100918"},"PeriodicalIF":9.6,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48992873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combustor technology of high temperature rise for aero engine","authors":"Qinghua Zeng,&nbsp;Xuanwu Chen","doi":"10.1016/j.paerosci.2023.100927","DOIUrl":"10.1016/j.paerosci.2023.100927","url":null,"abstract":"<div><p>The development of advanced military aero-engines with high thrust-to-weight ratios requires high-temperature-rise (HTR) technology for core component combustors. This poses a major challenge to multidisciplinary design and optimization of combustors. This paper analyzes the technical characteristics of the HTR combustor and summarizes and proposes three current major technical challenges. For each technical challenge, systematic analysis and comprehensive discussion are conducted from the aspects of technical strategies and research progress. The three technologies reviewed in this paper include (1) combustion configuration technology, (2) liner thermal protection technology involving advanced liner cooling and ceramic matrix composite (CMC) liners, and (3) outlet distribution control technology. We also present our insights regarding current solutions and future research trends related to the three major technical limitations of the HTR combustor.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"140 ","pages":"Article 100927"},"PeriodicalIF":9.6,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49354927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developments in pogo suppression methods for liquid rockets","authors":"Chujun Wu ,&nbsp;Zongxia Jiao ,&nbsp;Yuanzhi Xu ,&nbsp;Jiuhui Hu ,&nbsp;Hui Pan","doi":"10.1016/j.paerosci.2023.100931","DOIUrl":"10.1016/j.paerosci.2023.100931","url":null,"abstract":"<div><p>Pogo is a longitudinal vibration of liquid rockets, which is considered as a fluid-structure coupling of liquid supply system and rocket's structure. Its suppression is a critical element in the design of the fluid piping systems in liquid rockets, for many of them have been reported suffering the pogo vibration worldwide. Pogo suppression is a systematic technology including fluid-structure modelling, stability analysis and suppression devices. The suppression methods for pogo attracted much attention in the 1960s–1980s, while rare review can be found in recent decades. This article is to review pogo suppression methods vastly, and find effective and potential approaches for the future. The research and experience on the suppression technologies of pogo are investigated comprehensively, including the passive and active schemes. The advantages and limitations of various methods are discussed carefully, which indicates that the suppression is a systematic consideration. Moreover, the progress of the active control of fluid pulsation in hydraulic systems is also introduced detailedly, expecting a combination with the pogo application.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"140 ","pages":"Article 100931"},"PeriodicalIF":9.6,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46265559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of hybrid aquatic-aerial vehicle (HAAV): Classifications, current status, applications, challenges and technology perspectives","authors":"Guocai Yao ,&nbsp;Yanze Li ,&nbsp;Hanyi Zhang ,&nbsp;Yaotong Jiang ,&nbsp;Tianmiao Wang ,&nbsp;Fuchun Sun ,&nbsp;Xingbang Yang","doi":"10.1016/j.paerosci.2023.100902","DOIUrl":"10.1016/j.paerosci.2023.100902","url":null,"abstract":"<div><p>In recent years, there has been a growing need for vehicles with air-water amphibious capacities for both military and civil applications, and the technological advances in unmanned systems make it more feasible to create such vehicles. As a result, the hybrid aquatic-aerial vehicle (HAAV), which integrates the locomotion capacity of aerial vehicles and underwater vehicles, is facing a vast developing opportunity, and plenty of related technologies have emerged. However, no current HAAV has simultaneously achieved the operational capacities of UUVs and UAVs in their moving domain without sacrificing performance. The exploitation of HAAVs is still facing several significant challenges, such as insufficient water-air compatibility, inefficient water-entry locomotion, and inefficient water-exit locomotion. The development trend of HAAVs could be more transparent, with the proposed technologies and design concepts being sorted out clearly. Therefore, a literature review of this novel vehicle is urgently in demand. We build this review on our previous survey published in 2015, which is regarded as the earliest review on HAAVs. In this paper, we put forward a novel systematic classification method of the fully functional HAAVs by considering the structure configurations and introduce the prototype development of each kind. Then, the research statuses of the drive solutions and <em>trans</em>-media solutions are analyzed respectively. After that, we analyze the demands of HAAVs both in the military and civil applications and evaluate the device performances of the various HAAVs. Furthermore, the applicability of each category is eventually obtained by comparing their device performances with the application demands of various applications. Finally, the challenges of water-air compatibility, water-entry locomotion, and water-exit locomotion are discussed. Moreover, the key technologies to overcome them, i.e., morphing blade techniques, morphing wing techniques, variable density techniques, structural buffer techniques, bionic water-entry techniques, surface dehydration techniques, and bionic water-exit techniques are analyzed. The research in this paper will provide more promising solutions for aquatic-aerial locomotion and inspire more practical studies in the HAAV field.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"139 ","pages":"Article 100902"},"PeriodicalIF":9.6,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49347405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible photoelectronic material device and investigation method for space applications","authors":"Min Qian ,&nbsp;Yi Zhang ,&nbsp;Xiaojun Mao ,&nbsp;Yang Gao ,&nbsp;Xiaoyang Xuan ,&nbsp;Min Wu ,&nbsp;Yueping Niu ,&nbsp;Shangqing Gong","doi":"10.1016/j.paerosci.2023.100901","DOIUrl":"10.1016/j.paerosci.2023.100901","url":null,"abstract":"<div><p>Flexibility and lightweight are promising research topics for space science and technology, which benefit to reduce load, reduce volume, and integrate device. However, most photoelectronic devices on spacecraft are rigid devices now, because the space environment consists of irradiations and thermal cycling, with higher requirements for flexible photoelectronic materials and devices. The main bottlenecks include: the synthesis of space-durable packaging materials, the fabrication and packaging of flexible photoelectronic devices, and the effective investigation method for irradiation mechanism analysis. In view of these problems, this review presents the synthesis of bulk-phase silicon-reinforced yellow and transparent polyimides with space durability, the optical modulation of bulk-phase silicon-reinforced polyimide to ultra-black film and flexible color filters, the electrical modulation of bulk-phase silicon-reinforced polyimide into flexible transparent electrode, the integration of the bulk-phase silicon-reinforced transparent polyimide and flexible triple-junction GaAs thin-film solar cell, and the exploration of general investigation methods for irradiation mechanism based on the penetration depth and damage modes including atomic oxygen, ultraviolet, electron, proton, and thermal cycling. The material synthesis, device fabrication, and mechanism analysis method focus on the core scientific problems of space-durable flexible lightweight photoelectronic materials and devices, leading the development direction of flexible and lightweight space science and technology.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"139 ","pages":"Article 100901"},"PeriodicalIF":9.6,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47412472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Recent progress, challenges and outlook for multidisciplinary structural optimization of aircraft and aerial vehicles” [Prog. Aero. Sci. 135 (2022) 100861]","authors":"G. Corrado ,&nbsp;G. Ntourmas ,&nbsp;M. Sferza ,&nbsp;W. Tan ,&nbsp;N. Traiforos ,&nbsp;A. Arteiro ,&nbsp;L. Brown ,&nbsp;D. Chronopoulos ,&nbsp;F. Daoud ,&nbsp;F. Glock ,&nbsp;J. Ninic ,&nbsp;E. Ozcan ,&nbsp;J. Reinoso ,&nbsp;G. Schuhmacher ,&nbsp;T. Turner","doi":"10.1016/j.paerosci.2023.100903","DOIUrl":"10.1016/j.paerosci.2023.100903","url":null,"abstract":"","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"139 ","pages":"Article 100903"},"PeriodicalIF":9.6,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47153027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in spacecraft micro-vibration suppression methods","authors":"Xiaolei Jiao ,&nbsp;Jinxiu Zhang ,&nbsp;Wenbo Li ,&nbsp;Youyi Wang ,&nbsp;Wenlai Ma ,&nbsp;Yang Zhao","doi":"10.1016/j.paerosci.2023.100898","DOIUrl":"10.1016/j.paerosci.2023.100898","url":null,"abstract":"<div><p>The micro-vibration generated by various disturbance sources on spacecraft seriously affects the observation and imaging accuracy. Thus, some measures must be taken to isolate such micro-vibration. The most cost-effective choices involve installing vibration isolation devices at either the disturbance sources or the payloads. The selection of a reasonable micro-vibration isolation device benefits the suppression effect of micro-vibration and improves the design of spacecraft. According to the classification of vibration isolation at the disturbance source, transmission path, and payload, we summarized the development status of various types of micro-vibration isolation technologies, and the advantages, disadvantages, and application scope of each vibration isolation technology are discussed. The development direction and problems to be solved in the future are proposed. These are expected to provide a useful reference frame for researchers and engineers working in the field of spacecraft micro-vibration isolation technology.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"138 ","pages":"Article 100898"},"PeriodicalIF":9.6,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48779870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Public perception of advanced aviation technologies: A review and roadmap to acceptance","authors":"Nick Tepylo ,&nbsp;Anna Straubinger ,&nbsp;Jeremy Laliberte","doi":"10.1016/j.paerosci.2023.100899","DOIUrl":"10.1016/j.paerosci.2023.100899","url":null,"abstract":"<div><p>The aviation industry has seen a lot of innovation over the last 125 years. Advancements such as transatlantic flight and the development of avionics technologies and composite materials have changed how we think about what the future will hold. Advanced aviation technologies such as remotely piloted aircraft systems (i.e., “drones”) and urban air mobility may be the next revolution in the aviation industry. While many in the aviation industry look forward to greater inclusion of these technologies, the public may have a different perspective. This review aims to examine the factors that may influence one's perception of advanced aviation technologies. First, an overview of the technologies is presented to categorize the different types of drones and how they are used, followed by a discussion on the principles of technological adoption. Next, data from past studies investigating the public perception of drones and air taxis was collected and analyzed to discover if any patterns exist in terms of overall acceptance or mission preferences, and to determine the root causes of hesitancy towards this emerging technology. The trends suggest that drones have become increasingly accepted as public awareness rises, and missions that support the common good are viewed more favourably than commercial uses such as package delivery or air taxi services. The major obstacles include the perceived level of risk, pre-existing judgement as to the technological reliability, as well as the lack of perceived benefits when compared to existing technologies. Each of these topics are discussed and finally, a roadmap towards public acceptance is presented, incorporating the viewpoints of the public, drone users, and regulatory authorities. Together, this review discusses the current state of the field and what must be done to better integrate advanced aviation technologies into everyday life.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"138 ","pages":"Article 100899"},"PeriodicalIF":9.6,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44511452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements and prospects of boundary layer ingestion propulsion concepts","authors":"Nicolas G.M. Moirou ,&nbsp;Drewan S. Sanders ,&nbsp;Panagiotis Laskaridis","doi":"10.1016/j.paerosci.2023.100897","DOIUrl":"10.1016/j.paerosci.2023.100897","url":null,"abstract":"<div><p>The aviation sector is experiencing an increasing pressure to reduce emissions via long-term strategies for a ceaselessly growing number of flight passengers. Aircraft currently in operation have typically been designed by considering the airframe somewhat separately from the propulsion system. In doing so, conventional aero-engine architectures are approaching their limits in terms of propulsive efficiency, with technological advancements yielding diminishing returns. A promising alternative architecture for improving the overall performance of the next generation of commercial aircraft relies upon boundary layer ingestion (BLI). This technology aerodynamically couples the airframe with a strategically positioned propulsion system to purposely ingest the airframe’s boundary layer flow. Nonetheless, there is a lack in consensus surrounding the interpretation and quantification of BLI benefits. This is primarily because conventional performance accounting methods breakdown in scenarios of strong aerodynamic coupling. Subsequently, there is a major challenge in defining appropriate performance metrics to provide a consistent measurement and comparison of the potential benefits. This review examines the various accounting methods and metrics that have been applied in evaluating BLI performance. These are discussed and critiqued in the context of both numerical and experimental models. Numerically, the geometric, aerodynamic and propulsive models are sorted by their orders of fidelity along with the plenitude of methods used for flow feature identification enabling a phenomenological understanding of BLI. Particular attention is then given to experimental BLI models with their different set-ups, methods and associated limitations and uncertainties. Finally, the numerous unconventional BLI aircraft concepts are categorised, compared and critiqued with reference to their associated design exploration and optimisation studies.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"138 ","pages":"Article 100897"},"PeriodicalIF":9.6,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47913167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies towards a more sustainable aviation: A systematic review","authors":"Frederico Afonso ,&nbsp;Martin Sohst ,&nbsp;Carlos M.A. Diogo ,&nbsp;Simão S. Rodrigues ,&nbsp;Ana Ferreira ,&nbsp;Inês Ribeiro ,&nbsp;Ricardo Marques ,&nbsp;Francisco F.C. Rego ,&nbsp;Abdolrasoul Sohouli ,&nbsp;Joana Portugal-Pereira ,&nbsp;Hugo Policarpo ,&nbsp;Bruno Soares ,&nbsp;Bruna Ferreira ,&nbsp;Edgar C. Fernandes ,&nbsp;Fernando Lau ,&nbsp;Afzal Suleman","doi":"10.1016/j.paerosci.2022.100878","DOIUrl":"10.1016/j.paerosci.2022.100878","url":null,"abstract":"<div><p>As climate change is exacerbated and existing resources are depleted, the need for sustainable industries becomes ever so important. Aviation is not an exception. Despite the overall carbon dioxide emissions related to the aviation sector accounts for 2%–4% currently, forecasts for air travel indicate an annual growth of 3%–5% and other industries present more potential to reduce carbon emissions once they recur to an increasing use of renewable energies. This option is more difficult in aeronautics since an efficient and lighter energy storage system is required and the current state of the art in battery technology is far from the specific energy densities of fossil fuels and its production is not friendly to the environment. Thus, a herculean effort to integrate several promising mitigation strategies in an efficient way is required. In this paper, a review of the most upfront solutions towards greener aviation is presented and categorized as follows: concepts of operations, energy storage, propulsion systems, aerodynamics, structures, materials, and manufacturing processes. In the end, potential synergies between the different technologies to achieve green aviation are proposed.</p></div>","PeriodicalId":54553,"journal":{"name":"Progress in Aerospace Sciences","volume":"137 ","pages":"Article 100878"},"PeriodicalIF":9.6,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43075166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}