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Performance improvement of multi-blade centrifugal fan based on impeller outlet flow control
Physics of FluidsThe impeller of the multi-blade centrifugal fan significantly impacts the fan's internal flow field and aerodynamic performance. To improve the axial flow distribution along the impeller and suppress the blade passage backflow at the impeller outlet of multi-blade centrifugal fans, a method of variable chord length blade design is proposed ...
Jian Lei, Qin Cui, Guoliang Qin
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Wireless Personal Communications, 2018
The non-uniform flowrate distribution along the axis direction will affect the aerodynamic performance of the multi-blade centrifugal fan. In this article, the bevel cutting design on the blade is adopted. Using this method, the inlet structure is changed and the deviation of the inlet flow of the centrifugal fan is improved.
Jianjun Ye +5 more
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The non-uniform flowrate distribution along the axis direction will affect the aerodynamic performance of the multi-blade centrifugal fan. In this article, the bevel cutting design on the blade is adopted. Using this method, the inlet structure is changed and the deviation of the inlet flow of the centrifugal fan is improved.
Jianjun Ye +5 more
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Optimal design of multi-blade centrifugal fan based on partial coherence analysis
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021Considering that there are many design variables in multi-blade centrifugal fans, the complicated design parameters and internal flow uncertainty increase the difficulty of studying fan noise mechanisms. This study adopted the impact noise between the airflow at the impeller outlet inside the fan and the volute tongue as the research object.
Shuiqing Zhou +5 more
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Experimental Investigation on Aerodynamic Noise of a Small-Scale Multi-Blade Centrifugal Fan
Applied AcousticsHan Chen +4 more
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A design method of volute profile of multi-blade centrifugal fan based on DRBF model
Physics of Fluids, 2023The forward-curved multi-blade centrifugal fan is widely used in the ventilation and household appliance industries with limited space due to its small size factor, high pressure coefficient, and large outlet flow coefficient. Conventional centrifugal fan structural designs rely on empirical data, resulting in drawbacks during usage such as low airflow
A. Tianle Zhang +4 more
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Performance Improvement of Multi-Blade Centrifugal Fan by Using Optimal Bionic Blade
Volume 8: Turbomachinery, Parts A, B, and C, 2012The aim of this paper is to obtain a higher flow rate and lower noise multi-blade centrifugal fan by employing a type of optimized bionic blade. The design of experiment with orthogonal array tables is used in the optimization process. The factors of the geometric parameters of the bionic blade which selected in the present study are leading edge ...
Xiaomin Liu +3 more
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Numerical Optimization of a Multi-blades Centrifugal Fan for High-efficiency Design
Journal of Fluid Machinery, 2004Shape of a multi-blades centrifugal fan is optimized by response surface method based on three-dimensional Navier-Stokes analysis. For numerical analysis, Reynolds-averaged Navier-Stokes equations with standard turbulence model are transformed into non-orthogonal curvilinear coordinate system, and are discretized with finite volume approximations.
Seoung-Jin Seo, Kwang-Yong Kim
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Effect of Cut-off Angle on Flow Pattern of Centrifugal Multi-blade Fan
Journal of Fluid Machinery, 2010This study investigated on details of flow characteristics of a multi-blade fan for domestic ventilation. Experiments and analysis were carried out to describe on flow pattern with variations of cut-off angle near the scroll housing throat, which were performed by PIV measurement for the flow field and by total pressure probes.
Kyung-Jun Kang +3 more
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Pneumatic Flow Field Analysis of Multi-blade Centrifugal Ventilation Fan
Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence, 2019A certain type of multi-blade centrifugal ventilating fan is taken as the research object, from the perspective of CFD, the distribution of the three-dimensional flow field inside the ventilating fan is numerically simulated, the root cause of the internal problem of the ventilating fan is determined, and the impeller is further analyzed from the flow ...
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