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Jiahao Guo and Zhou Zhou
In order to improve the design accuracy of the blade design method of a ducted fan based on the blade element momentum theory, the design was modified by the CFD calculation with higher accuracy to propose an integrated and efficient design method for th...
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Chunxiao Wu, Yu Lu, Shewen Liu, Zhiyuan Li, Zhuhao Gu, Wu Shao and Chuang Li
A pump-jet propulsion system is composed of rotor, stator, and duct. The stator has the front stator type and the rear stator type; the conduit also has the acceleration conduit and the deceleration conduit two forms. It is difficult to design and evalua...
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Stephen Schade, Robert Jaron, Lukas Klähn and Antoine Moreau
The rotor?stator interaction noise is a major source of fan noise. Especially for low-speed fan stages, the tonal component is typically a dominant noise source. A challenge is to reduce this tonal noise, as it is typically perceived as unpleasant. There...
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Xiang Shen, Xu Deng, Barrie Mecrow, Rafal Wrobel and Richard Whalley
The work specifically targets the enhancement of cooling mechanisms in high-power permanent magnet electrical machines, with a direct application in improving the thermal management of stator windings in such devices. This advancement can significantly b...
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Gang Zhao, Tian Qiu and Peng Liu
The pre-swirl stator-rotor system is a common and important structure in gas turbines, and its main function is to provide cold air to the turbine blades with a low relative total temperature. Under normal conditions, the boundaries of the system are sym...
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Yang Gao, Jens Fridh, Richard Morrison, Pangbo Ren and Stephen Spence
This paper numerically investigates stator endwall designs for a mixed flow turbine. One key design parameter studied is the tilting angle of the stator endwall. By examining stator designs with different tilting angles, the aim of this paper is to impro...
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Matteo Giovannini, Filippo Rubechini, Michele Marconcini, Andrea Arnone and Francesco Bertini
This paper presents an innovative design for reducing the impact of secondary flows on the aerodynamics of low-pressure turbine (LPT) stages. Starting from a state-of-the-art LPT stage, a local reshaping of the stator blade was introduced in the end-wall...
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Borja Lizarribar, Borja Prieto, Miren Aristizabal, Jose Manuel Martín, Miguel Martínez-Iturralde, Ekain San José, Ione Golvano and Sergio Montes
Recent advances in manufacturing methods have accelerated the exploration of new materials and advantageous shapes that could not be produced by traditional methods. In this context, additive manufacturing is gaining strength among manufacturing methods ...
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Yunkai Zhou, Giorgio Pavesi, Jianping Yuan and Yanxia Fu
A pump-jet, which is generally and widely adopted on underwater vehicles for applications from deep sea exploration to mine clearing, consists of a rotor, stator, and duct, with the properties of high critical speed, high propulsion efficiency, great ant...
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Yun Chen, Yanjun Liu, Wei Yang, Yiming Wang, Li Zhang and Yongpeng Wu
Ocean Thermal Energy Conversion (OTEC) is one of the emerging industries of ocean energy and an important link in carbon neutrality. Turbine is a key component of ocean thermal energy conversion, which has an important impact on the performance and energ...
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Alessandro Cappiello and Raffaele Tuccillo
The design of organic Rankine cycle (ORC) turbines often requires dealing with transonic flows due to the cycle efficiency requirements and the matching of the temperature profiles with heat sources and sinks, as well as the nature of organic fluids, oft...
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Jonas Foret, Daniel Franke, Fabian Klausmann, Alexandra Schneider, Heinz-Peter Schiffer, Bernd Becker and Hauke Müller
This paper experimentally investigates a highly-loaded 1.5-stage transonic axial compressor, which comprises a variable inlet guide vane, a BLISK rotor, and a variable stator in tandem arrangement. A detailed comparison between the newly designed compres...
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Jianhui Hu, Meng Zhao, Jibin Zou and Yong Li
A PM orbital friction vibration actuator (OFVA) which composes four linear oscillating actuators (LOA) is proposed in this paper. This paper presents the design, analysis, and experimental validation of stator configuration of a permanent magnet LOA to i...
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Jin-Wook Kim, Moon-Chan Kim, Il-Ryong Park, Hanshin Seol, Min-Jea Kim and Woo-Seok Jin
Submarines with pumpjet propulsors have recently been used in many countries to improve their propulsion and noise performance. The pumpjet has the advantage of improving noise and cavitation performance by increasing the pressure inside the duct, and it...
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Shiva Nourifard, Seyyed Hasheminejad, Majid Jami
In this study, design, design calculations and simulation of a permanent magnet generator, which includes two sections of radial and axial flux, are discussed. The output power from the generator is 1.1 kilowatt. In the design of the generator, a cone-sh...
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Saad Chahba, Guillaume Krebs, Cristina Morel, Rabia Sehab and Ahmad Akrad
The electric urban air mobility sector has gained significant attraction in public debates, particularly with the proliferation of announcements demonstrating new aerial vehicles and the infrastructure that goes with them. In this context, the developmen...
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Domenik Radeck, Felix He-Mao Hsu, Florian Janke, Gabriele Semino, Tim Hofmann, Sebastian Rink and Agnes Jocher
The hyperloop concept envisions a low pressure tube and capsules, called pods, traveling at the speed of commercial aircraft as a sustainable, future-proof mass transportation system between cities. However, in contrast to the use case of such a system, ...
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Shiji Zhou, Shengfeng Zhao, Chuangxin Zhou, Yunfeng Wu, Hang Yuan and Xingen Lu
To explore the internal flow mechanism and improve the performance of a supersonic compressor, an efficient global optimization design method was developed for an axial flow compressor and applied in the optimization design of a prototype supersonic comp...
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Hengtao Shi
This paper researches the parametric optimization of a two-stage transonic compressor having a large air bypass at partial rotating speed according to flow analysis for a turbine-based combined cycle engine (TBCC). To obtain adequate thrust, the inlet tr...
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Guanghui Du, Qizheng Zhang, Qixun Zhou, Chengshuai Hu and Tao Pu
In the electromagnetic design process of the outer rotor of a low-speed permanent magnet motor (LSPMM), due to the different heat dissipation conditions of the stator core and the stator winding, the selection of different magnetic loads and stator curre...
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