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V. ?. Kozachyna, O. V. Hromova, O. Y. Hunko, L. H. Tatarko
Pág. 15 - 21
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Xinyi Lin, Beile Zhang, Ming Zhang, Yongli Zhao, Tianwei Lai, Liang Chen and Rong Xue
A high-speed centrifugal pump with a fully sealed structure has the advantages of a small size, no external leakage, and being pollution-free. The inner leakage passage of a pump with a fully sealed structure includes the tip clearance and the hub cleara...
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Feiyan Min, Guoliang Pan and Xuefeng Xu
The hydrodynamic characteristics of multi-propeller autonomous underwater vehicles (AUV) is usually complicated and it is difficult to obtain an accurate mathematical model. A modeling method based on CFD calculation and maximum likelihood identification...
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Qiong Hu, Li Zou, Tong Lv, Yingjie Guan and Tiezhi Sun
The Y-shaped elbow is used as a connecting pipe between the buffer and the lift pipe in the deep-sea mining system. After being mixed with seawater in the Y-shaped elbow, nodule particles are lifted to the sea surface mining ship via the lift pump. In th...
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Huachen Pan, Ran Zeng, Xiaoqing Tian, Elias Taalab, Ming Lv and Zefei Zhu
Computational and experimental methods were used to study a propeller coated with hydrophobic material and a propeller with a conventional surface for comparison. In CFD simulations, the blade surface mesh was arranged in a way to set non-slip or free sl...
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Mengge Yu, Jiali Liu, Wei Huo and Jiye Zhang
Aiming to improve the comprehensive aerodynamic performance of a high-speed train, a multi-objective shape optimization method for a streamlined train head is proposed in this work. The shape of the streamlined train head is parameterized with some splin...
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O. N. Kornelyuk
Pág. 74 - 81
Purpose. The article is aimed to: generate 3D models of the screw-propellers under study, as well as the calculation box; carry out a series of numerical experiments to verify the obtained results with the corresponding results of the model experiments; ...
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Yu Lu, Jianping Yuan, Qiaorui Si, Peifeng Ji, Ding Tian and Jinfeng Liu
In previous AUV designs, the thrusters were often placed outside the vehicle, resulting in their performance being significantly influenced by the shape of the vehicle. Additionally, this placement also leads to the generation of strong radiated noise th...
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Ke Li, Hai Li, Shaopeng Li and Zengshun Chen
The shape of a bluff body section is of high importance to its aerostatic performance. Obtaining the aerostatic performance of a specific shape based on wind tunnel tests and CFD simulations takes a lot of time, which affects evaluation efficiency. This ...
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Xiaoyang Li, Xiaohui Lin, Changyue Xu and Zhuopei Li
The calculation of a cockpit?s transient thermal load is important for determining the capacity of the cockpit environmental control system, ensuring the safety of electronic equipment and increasing the health and comfort of cockpit occupants. According...
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Jie Zhang, Xiang Tian, Chao Zhao, Xiuzhen Yu, Shiguan An, Rui Guo and Bin Feng
During the steady operation of the 9FF square bale corn stalk pulverizer, the rapidly rotating spindle drives the hammers and impellers to form a complicated airflow field environment in the crushing chamber. The flow field characteristics in the crushin...
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Ri Wang, Fengfei Lou, Bin Qi, Rong A, Yuanye Zhou and Sujun Dong
In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a seri...
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Zhi Rao, Lingfeng Tang and Hui Zhang
Aiming at the problem of high vibration and high wear of centrifugal pump tongue, this paper proposes a double-tongue volute structure. Under the condition of ensuring the reliability of CFD results, the influence of various combinations of tongue and vo...
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Yifan Wang, Kun Jin, Xingxing Huang, Peng Lin, Zhengwei Wang, Wenliang Wang and Lingjiu Zhou
In this paper, a 1000 MW Francis turbine was used to study the influences of uneven clearance distribution caused by various radial installation deviations on the hydraulic thrust of a runner under the rated operating condition with steady-state CFD anal...
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Jiwei Tang, Weicheng Xie, Xiaoliang Wang and Cheng Chen
Based on the biaxial experiment data of the membrane material under hot and cold conditions, the mechanical properties calculation model of envelope material was established with consideration of the effects of varying stress ratios, stress magnitudes an...
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Pavel Hospodár, Armand Drábek and Ale? Prachar
This article deals with aerodynamic and structural calculations of several wing designs to compare the influence of the shape on the lift distribution. Various shapes of wings for the required lift and bending moment were optimized to minimize drag and t...
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Ye Yuan, Douglas Thomson and David Anderson
The tiltrotor has unique flight dynamics due to the aerodynamic interference characteristics. Multiple aerodynamics calculation approaches, such as the CFD method, are utilised to characterise this feature. The calculation process is usually time-consumi...
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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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Xu Li and Zhou Zhou
In order to study the aerodynamic interaction of the airfoil and jet flow, the free streamline model and the panel method are combined to develop a fast calculation method for the airfoil in two-dimensional inviscid jet flow. The vortex strength and posi...
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Rizuwana Parween, Mohan Rajesh Elara, Zaki Saptari Saldi, Thomas Ng and Madan Mohan Rayguru
For glass façade cleaning, we developed a reconfigurable robot, Mantis-mini, with a dry cleaning mechanism and linear actuator based transitioning mechanism. It consists of three suction modules, connected by a support structure and each suction module h...
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