Results 31 to 40 of about 3,890,637 (138)
Effect of axial spacing on rotating stall performance of FBCDZ-10-No20 contra-rotating fan
Meitan kexue jishu, 2023 Mining contra-rotating fan are prone to rotational stall when it operates at low flow rates, which seriously affects the operational stability. The unsteady flow in the full flow passage of a FBCDZ-10-No20 contra-rotating fan at five axial spacings was ...
Qingguang CHEN +3 more
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Advances in Mechanical Engineering, 2017 A contra-rotating axial-flow fan is prone to stalling and motor overload at partial flow rates. Moreover, its efficiency decreases sharply at a high flow rate, which is accompanied by disparity between the shaft powers of the two impellers and the light ...
Xiaobo Sun +3 more
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Propulsion and Power Research, 2020 The present study introduces an innovative aerodynamic redesign of an axial flow fan based on constant diffusion factor and radial equilibrium. All input design parameters such as mass flow rate, hub to tip ratio, aspect ratio, tip diameter and angular ...
Ali Shahsavari, Mahdi Nili-Ahmadabadi
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Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
Frontiers in Energy Research, 2021 With the aim of improving the aerodynamic performance of axial turbomachinery, a new type of blade is designed using the equal–variable circulation method.
D. Liang +5 more
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Influence of axial spacing on stall development of FBCDZ-10-No20 mode contra-rotating fan
Meitan kexue jishu, 2023 The rotating fan is prone to instability such as stall and even surge when operating at low flow rates. In order to study the influence of axial spacings on the stall inception and its development and propagation process of a contra-rotating fan , a ...
Qingguang CHEN +3 more
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Development of a rotor model for the numerical simulation of helicopter exterior flow-fields [PDF]
, 2004 Includes bibliographical references (leaves 84-85).A numerical methodology is developed to model the effect of a rotor on the surrounding flow-field. The model calculates the time-averaged aerodynamic forces exerted on the air by the fan blades within ...
Hotchkiss, Paul
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Numerical Analysis of Erosion Caused by Biomimetic Axial Fan Blade
Advances in Materials Science and Engineering, 2013 Damage caused by erosion has been reported in several industries for a wide range of situations. In the present work, a new method is presented to improve the erosion resistance of machine components by biomimetic method.
Jun-Qiu Zhang +5 more
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Effects of Inflow Distortion due to Hub Cap's Shape on the Performance of Axial Flow Fan
Journal of Fluid Science and Technology, 2008 Performance characteristics of an axial flow fan having distorted inlet flow have been investigated using numerical analysis. Two kinds of hub-cap, rounded and right-angled front shape, are tested to investigate the effect of inlet flow distortion on the
Choon-Man JANG +2 more
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The Influence of a Blade-Guiding Fin on the Pneumatic Performance of an Axial-Flow Cooling Fan
Machines, 2023 An axial-flow cooling fan was taken as the research object in this paper, and a certain number of simulation models with different blade-guiding fin shapes were established. The methods of computational fluid dynamics (CFD), circumferential vorticity (CV)
Hengtao Shu, Haizhou Chen
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Influence of design parameters on the global performances of low-speed counter-rotating axial-flow fans [PDF]
, 2014 The present work aims at experimentally investigating the effects of some parameters on the performances of a counter-rotating stage, and on the instationary flow between the rotors.
BAKIR, Farid +5 more
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