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Omkar Walvekar and Satyanarayanan Chakravarthy
A conceptual framework is presented to determine the improvement in the aerodynamic performance of a canard aircraft fitted with distributed propellers along its main wing. A preliminary study is described with four airframe?propeller configurations pred...
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Andry Sedelnikov, Evgenii Kurkin, Jose Gabriel Quijada-Pioquinto, Oleg Lukyanov, Dmitrii Nazarov, Vladislava Chertykovtseva, Ekaterina Kurkina and Van Hung Hoang
This paper describes the development of a methodology for air propeller optimization using Bezier curves to describe blade geometry. The proposed approach allows for more flexibility in setting the propeller shape, for example, using a variable airfoil o...
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Catharina Moreira, Nikolai Herzog and Christian Breitsamter
Recent developments in electrical Vertical Take-off and Landing (eVTOL) vehicles show the need for a better understanding of transient aero-mechanical propeller loads for non-axial inflow conditions. The variety of vehicle configurations conceptualized w...
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José Azinheira, Reginaldo Carvalho, Ely Paiva and Rafael Cordeiro
This paper proposes a new kind of airship actuator configuration for surveillance and environmental monitoring missions. We present the design and application of a six-propeller electrical airship (Noamini) with independent tilting propellers, allowing i...
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Alessandro Capone, Francisco Alves Pereira and Fabio Di Felice
The design of super-cavitating propellers takes advantage of the development of air cavities on the blades? surface to reduce drag and, ultimately, increase efficiency. The mechanism of flow modification induced by the development of a cavity on the prop...
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Katsumi Watanabe, Takuma Shibata and Masazumi Ueba
In recent years, the use of fixed-wing Unmanned Aerial Vehicles (UAVs) has expanded, and the use of fixed-wing UAVs is expected to expand due to their usefulness for long-range operations. Different from manned aircraft, no provision is required regardin...
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Shuli Wang, Ziang Li and Qingxin Zhang
The electric seaplane, designed for take-off and landing directly on water, incorporates additional structures such as floats to meet operational requirements. Consequently, during the take-off taxiing phase, it encounters significantly higher aerodynami...
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Yitong Zhang, Jiangtao Li, Fang Lu, Siqi Wang, Yangjie Ren, Shiyang Guo, Ben Wang and Wei Gao
The widespread use of non-renewable phosphate fertilizers in agriculture poses a significant pollution threat to soil, necessitating the exploration of sustainable alternatives for phosphate fertility. Releasing phytate phosphorus through microbial phyta...
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Ziqi Zhou, Pan Geng, Wei Cao and Xiaoyan Xu
In the navigation of rudderless dual-motor propulsion ships, it is often necessary for the dual motor to run stably at different given speeds. However, the existing coupling strategies cannot achieve precise cooperative control of the dual motor under di...
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Yi Zhang, Hengchao Zhao, Zheng Zhang and Hongbo Wang
Addressing the automatic berthing task for vessels, this study introduces the Flow Matching Double Section Bezier Berth Method (FM-DSB) for handling downstream and upstream berthing instructions. By considering the orientation relationship between the di...
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