Results 11 to 20 of about 142,039 (311)

Modelling and researching of forced spatial vibrations of axial fans [PDF]

open access: yesMATEC Web of Conferences, 2019
This work presents a mechanic - mathematical matrix modelling of the forced spatial vibrations of an axial fan. The axial fan is considered as a mechanical system consisting of three rigid bodies and with 18 degrees of freedom. The differential equations
Slavov Valentin, Vukov Georgi
doaj   +1 more source

Experimental study of blade thickness effects on the global and local performances of a Controlled Vortex Designed axial-flow fan [PDF]

open access: yes, 2011
The purpose of this work is to study the effects of blade thickness on the performances of an axial-flow fan. Two fans that differ only in the thickness of their blades were studied.
BAKIR, Farid   +3 more
core   +7 more sources

Design Optimization Method and Application of High-Efficiency and Variable-Pitch Axial Flow Fan [PDF]

open access: yesE3S Web of Conferences
This paper describes servo motor–driven variable-pitch axial flow fan, and its optimal design method, process and application results for improving the efficiency of the variable-pitch fan.
Lee Chan, Yang Sang Ho, Lee Sang Yeol
doaj   +1 more source

Utjecaj radijalnog i aksijalnog razrmaka na emitiranu buku i performance ventilatora

open access: yesPromet (Zagreb), 2012
Among all auxilimy units of the air cooled diesel engine acooling fan is the noisiest. One of the noise generation mechanismsis the blade interaction with the vortices occurring in theradial and axial clearances of the fan due to the pressure ...
Mirko Čudina
doaj   +1 more source

Investigation of the turbulent swirl flow in pipe generated by axial fans using PIV and LDA methods [PDF]

open access: yesTheoretical and Applied Mechanics, 2015
In this paper is presented experimental investigation of the turbulent swirl flow in pipe generated by axial fans. Two various models of industrial axial fans are used.
Čantrak Đorđe S.   +2 more
doaj   +1 more source

High-efficiency Axial Flow Fan Design by Combining Through-flow Modeling, Optimization Algorithm and Computational Fluid Dynamics Simulation [PDF]

open access: yesJournal of Applied Fluid Mechanics
In this study, a high-efficiency axial fan design method and process are proposed by integrating the controlled blading design (CBD) method for the spanwise design of blade angles, the through-flow analysis method incorporating three-dimensional flow ...
C. Lee   +3 more
doaj   +1 more source

Numerical simulation analysis of cotton conveying channel entrance of foreign fiber sorter

open access: yesXi'an Gongcheng Daxue xuebao, 2021
In order to explore the effects of different entrance structures on the flow speed distribution in the cotton conveying channel of the foreign fiber sorter, and improve the stability of cotton flow, numerical simulation analysis method was adopted, and ...
Boyi JIANG   +3 more
doaj   +1 more source

Coupled electromagnetic and thermal analysis of an axial flux PM machine [PDF]

open access: yes, 2015
The rotor discs in axial flux permanent magnet (PM) machines have similar properties as a radial fan, and therefore, the convective cooling may have a significant influence on the thermal design of these machines.
Hemeida, Ahmed   +4 more
core   +2 more sources

Axial Fan Performance under the Influence of a Uniform Ambient Flow Field

open access: yesInternational Journal of Rotating Machinery, 2018
In their application to air-cooled condensers, axial fans are often subject to the detrimental influence of ambient flow fields at their inlet or outlet.
Till Heinemann, Stefan Becker
doaj   +1 more source

Experimental study of blade rigidity effects on the global and the local performances of a thick blades axial-flow fan [PDF]

open access: yes, 2010
An experimental investigation on the aerodynamic performances of thick blades axial-flow fans was carried out in this study. Two fans are considered, the first one is rotomoulded (in plastic) and the second one is milled (in aluminium). Both have exactly
BAKIR, Farid   +3 more
core   +6 more sources

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