|
|
|
Houari Ameur, Youcef Kamla and Djamel Sahel
The present paper deals with the mixing of a highly viscous fluid by close-clearance impellers in cylindrical vessels. The study is performed via numerical simulations. Calculations are achieved by the discretization of continuity and momentum equations ...
ver más
|
|
|
|
|
|
|
Houari Ameur, Youcef Kamla, Djamel Sahel
Pág. 312 - 319
Design of the impeller blade is a determining factor in power consumption and mixing quality, which determines consequently the cost of the mixing operation. This study explores the flow patterns and the power required for stirring a Newtonian fluid by p...
ver más
|
|
|
|
|
|
|
Hui Li, Yongjun Chen, Yang Yang, Shixin Wang, Ling Bai and Ling Zhou
The centrifugal pump is one of the most widely used types of power machinery in the field of ship and ocean engineering, and the shape of the impeller blade trailing edge has an important influence on their performance. To reveal the mechanism of the eff...
ver más
|
|
|
|
|
|
|
David Beck and Paul Uwe Thamsen
Especially in the field of sewage pumps, the design of radial impellers focuses not only on maximum efficiency but also on functionality in terms of susceptibility to clogging by fibrous media. In general, the efficiency of sewage impellers is significan...
ver más
|
|
|
|
|
|
|
T R Jebieshia, Senthil Kumar Raman and Heuy Dong Kim
The present study focuses on the aerodynamic performance and structural analysis of the centrifugal compressor impeller. The performance characteristics of the impeller are analyzed with and without splitter blades by varying the total number of main and...
ver más
|
|
|
|
|
|
|
Yaguang Heng, Kunjian He, Qifeng Jiang, Weibin Zhang, Gérard Bois and Xiaobing Liu
Disc pumps rely on the shear force generated by a co-rotating disc to transport the fluid, the interaction between the fluid and impeller is weak, providing such pumps advantages when handling multi-phase flow. In the present study, a loss analysis is pr...
ver más
|
|
|
|
|
|
|
Ching Ying Tan, Mohd Izzudin Izzat Zainal Abidin, Mohd Usman Mohd Junaidi
Pág. 1 - 9
The work presents the computational study of the flow field in multiple impellers stirred vessel with various impeller types and configurations at 300rpm, 450rpm and 600rpm. Three types of impellers are investigated, namely the pitched blade impeller (PB...
ver más
|
|
|
|
|
|
|
Baoling Cui and Mingyu Shi
Centrifugal pumps are essential fluid transfer devices in marine engineering. As the two most critical components of a centrifugal pump, the dynamic?static interference between the volute and the impeller makes the flow near the cutwater highly unstable,...
ver más
|
|
|
|
|
|
|
Yadong Zhu, Haifeng Jiao, Shihui Wang, Wenbo Zhu, Mengcheng Wang and Songshan Chen
In order to study the pressure pulsation characteristics and structural dynamic response characteristics of a vertical shaft cross-flow pump, this study used a computational fluid dynamics (CFD) numerical simulation method to analyze the pressure pulsati...
ver más
|
|
|
|
|
|
|
Khalida Bekrentchir, Abdelkader Debab
Pág. 210 - 217
In this work, the mixing performance in a batch torus reactor was investigated using computational fluid dynamics (CFD). To validate the numerical model, the CFD results for the mean bulk velocity and power number were compared with the experimental data...
ver más
|
|
|
|
|
|
|
Manqi Tang, Guangtai Shi, Wenjuan Lv, Xiaodong Peng and Zongliu Huang
Multiphase pumps operate under different flow conditions with different work performance. In order to reveal the energy conversion regulations in multiphase pumps under different flows, this paper presents an analysis of the effects of different flows on...
ver más
|
|
|
|
|
|
|
Mengxing Gao and Li Cheng
In order to improve the cavitation performance of hydraulic machinery in the design stage, the response surface analysis method is used to study the influence of cascade density on the hydraulic characteristics and cavitation characteristics of a three-d...
ver más
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
Yiming Wang, Yun Chen, Gang Xue, Tianxu Zhang and Yanjun Liu
Combining one-dimensional parameter optimization and three-dimensional modeling optimization, a 30 kW radial inflow turbine for ocean thermal energy conversion was designed. In this paper, the effects of blade tip clearance, blade number, twist angle, an...
ver más
|
|
|
|
|
|
|
Thomas Carolus and Konrad Bamberger
This study targets determining impellers of impeller-only axial fans with an optimal hub-to-tip ratio for the highest achievable total-to-static efficiency. Differently from other studies, a holistic approach is chosen. Firstly, the complete class of the...
ver más
|
|
|
|
|
|
|
Bokai Wang, Feng Wu, Fengwei Gu, Hongchen Yang, Huichang Wu and Zhichao Hu
In order to improve the solution to the unachieved uniformity of straw throwing, the unachieved qualified rate of coverage and the uneven straw throwing in sowing wheat without a tillage process after the rice harvest, and to change this unsatisfied qual...
ver más
|
|
|
|
|
|
|
Maitrik Shah, Beena Baloni, Salim Channiwala
Pág. 216 - 227
The design and off-design performance of a centrifugal pump largely depends on geomechanical parameters. This study aims at enhancing the performance by optimizing three geomechanical parameters of impeller-volute interactions. The present optimization i...
ver más
|
|
|
|
|
|
|
Minquan Liao, Qiaorui Si, Meng Fan, Peng Wang, Zhonghai Liu, Shouqi Yuan, Qianglei Cui and Gérard Bois
Results on overall pump head and efficiency performance, pressure pulsation and high speed camera visualization of flow patterns behavior are presented for different inlet air-water void fractions at a given rotational speed. With the increase of inlet v...
ver más
|
|
|
|
|
|
|
Yang Yang, Ling Zhou, Hongtao Zhou, Wanning Lv, Jian Wang, Weidong Shi and Zhaoming He
Marine centrifugal pumps are mostly used on board ship, for transferring liquid from one point to another. Based on the combination of orthogonal testing and numerical simulation, this paper optimizes the structure of a drainage trough for a typical low-...
ver más
|
|
|
|
|
|
|
Yangyang Wei, Yang Yang, Ling Zhou, Lei Jiang, Weidong Shi and Gaoyang Huang
The centrifugal pump is one of the most important pieces of energy-consuming equipment in various hydraulic engineering applications. This paper takes a low specific speed centrifugal pump as the research object. Based on the research method combining nu...
ver más
|
|
|
|