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Jiangtao Chen, Jiao Zhao, Wei Xiao, Luogeng Lv, Wei Zhao and Xiaojun Wu
Given the randomness inherent in fluid dynamics problems and limitations in human cognition, Computational Fluid Dynamics (CFD) modeling and simulation are afflicted with non-negligible uncertainties, casting doubts on the credibility of CFD. Scientifica...
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O. V. Kravchenko, O. A. Azarova and D. D. Knight
The problem of noise reduction in supersonic aircraft design is one of the key problems, the solution of which largely determines the speed of development of supersonic aviation as a whole. The present study examines the noise generation during flights o...
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Yingzhe Zhang, Baohong Bai, Dakai Lin and Peiqing Liu
The flap side-edge is a vital contributor to airframe noise. In this study, we propose a novel flap side-edge noise reduction method based on the concept of active blowing air. A long slot is opened from the flap?s lower surface to the tip surface to ind...
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Yudi Xing, Weijie Chen, Xingyu Wang, Fan Tong and Weiyang Qiao
Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important noise source, which is caused by the vortex shedding at blunt trailing edges. A numerical study on airfoil trailing-edge bluntness noise co...
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Wei Cui, Wenxue Chen, Xiangpeng Mu, Qilin Xiong, Junqiang Li, Xiaochen Li, Zhe Liu and Zheqi Zhang
The roughness of the aqueduct in the Middle Route of the South-to-North Water Diversion Project has increased due to factors such as the natural aging of concrete and biological attachment. To increase the flow capacity of the project, a roughness reduct...
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Jasmin Fetzer, Markus Holzner, Michael Plötze, Gerhard Furrer
Pág. 60 - 69
Clogging of streambeds by suspended particles (SP) can cause environmental problems, as it can negatively influence, e.g., habitats for macrozoobenthos, fish reproduction and groundwater recharge. This especially applies in the case of silt-sized SP. Unt...
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Libin Du, Yongchao Cui, Yanqun Ma, Jie Liu and Zezheng Liu
The pendulum-tuned mass damper (PTMD) is a widely used vibration-damping device capable of transferring and dissipating structural vibration energy, resulting in reduced structural amplitude, and offering both structural and performance advantages. Given...
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Linlong Yu, Sobhan Iranmanesh, Ian Keir and Gopal Achari
Sulfolane is an emerging contaminant in the groundwater and soil nearby gas plants, which has attracted much attention from many researchers and regulatory agencies in the past ten years. In this paper, a field pilot-scale ultraviolet (UV)/hydrogen perox...
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Haojun Zeng, Jingqi Yuan and Jingcheng Wang
Selective catalytic reduction (SCR) is one of the most efficient methods to reduce NOx emissions from coal-fired power plants. This paper deals with an optimal design tower type SCR-deNOx facility for a 1000 MW coal-fired power plant. Combined with compu...
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Taiping Wang, Tarang Khangaonkar, Wen Long and Gary Gill
With the rapid growth of global energy demand, interest in extracting uranium from seawater for nuclear energy has been renewed. While extracting seawater uranium is not yet commercially viable, it serves as a ?backstop? to the conventional uranium resou...
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Iosif C. Moulinos, Christos Manopoulos and Sokrates Tsangaris
Peristaltic flow in a straight rectangular duct is examined imposed by contraction pulses implemented by pairs of horizontal cylindrical segments with their axes perpendicular to the flow direction. The wave propagation speed is considered in such a rang...
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Behzad Amirsalari and Joana Rocha
Airflow-induced noise prediction and reduction is one of the priorities for both the energy and aviation industries. This review paper provides valuable insights into flow-induced noise computation, prediction, and optimization methods with state-of-the-...
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Paolo Renna, Sergio Materi and Michele Ambrico
Cellular manufacturing systems are widely used due to their advantageous capability of combining the flexibility of the job-shop and the productivity of the flow-shop. In recent years, the reduction of the product life cycle, variation in demand products...
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Le Jiang, Yaguo Lyu, Yanjun Li, Yewei Liu, Yankun Hou and Zhenxia Liu
To study the influence of orifice spacing on the oil?air two-phase flow and the oil capture efficiency of an oil scoop in an under-race lubrication system, an experimental platform for under-race lubrication was built, and a calculation model for the oil...
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Haoguang Zhang, Hao Wang, Qi Li, Fengyu Jing and Wuli Chu
The aim of this research was to explore the mechanisms underlying the effect of self-circulating casing treatment with different circumferential coverage ratios on the aerodynamic performance of a transonic centrifugal compressor. A three-dimensional uns...
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Xiaohan Xu, Xudong Huang, Dianfang Bi and Ming Zhou
Aerodynamic compressor designs require considerable prior knowledge and a deep understanding of complex flow fields. With the development of computer science, artificial intelligence (AI) has been widely applied to compressors design. Among the various A...
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Can Zhang, Hao Tang, Nyatchouba Nsangue Bruno Thierry, Liqiang Yin, Feng Zhang, Meixi Zhu, Chenxu Shan, Liuxiong Xu and Fuxiang Hu
The grid is a crucial component in constructing grid-type bycatch reduction devices. The grid?s structural characteristics and orientation significantly impact the hydrodynamic characteristics and efficacy of the separation device. Therefore, it is essen...
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Leiye Wu, Wei Cheng and Zhehao Zhu
Seabed soil may experience a reduction in strength or even liquefaction when subjected to cyclic loadings exerted by offshore structures and environmental loadings such as ocean waves and earthquakes. A reasonable and robust constitutive soil model is in...
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Syamak Pazireh and Jeffrey J. Defoe
Body force models of fans and compressors are widely employed for predicting performance due to the reduction in computational cost associated with their use, particularly in nonuniform inflows. Such models are generally divided into a portion responsibl...
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Yichen Jiang, Chenlu He, Peidong Zhao and Tiezhi Sun
Vertical axis wind turbine (VAWT) is a competitive power generation device due to structural simplicity, wind direction independence, no yaw mechanism required, easier maintenance, and lower noise emission. However, blade tip vortex will be generated at ...
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