scholarly journals Effects of Mechanical Similarity Law and Cyclone Sizes for Pressure Drop of Geometrically Similarity Type of Axial Flow Cyclone Dust Collectors

2003 ◽  
Vol 2003.39 (0) ◽  
pp. 115-116
Author(s):  
Akira OGAWA
Keyword(s):  
Pressure Drop ◽  
Axial Flow ◽  
Similarity Type ◽  
Axial Flow Cyclone ◽  
Similarity Law

scholarly journals Experimental and Numerical Study on the Resistance Performance of an Axial Flow Cyclone Separator

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Yigang Luan ◽  
Haiou Sun
Keyword(s):  
Pressure Drop ◽  
Numerical Study ◽  
Ambient Pressure ◽  
Axial Flow ◽  
Operating Conditions ◽  
Cyclone Separator ◽  
Pressure Drops ◽  
Axial Flow Cyclone ◽  
Cfd Method ◽  
Resistance Performance

The purpose of this paper is to study the pressure drop of an axial flow cyclone separator as a function of inlet velocities using experimental and computational fluid dynamics (CFD) methods. First, the resistance performance of the separator was acquired under ambient pressure and temperature with little change by wind tunnel experiments. Then, numerical simulations were carried out in CFD code Fluent 6.3 under standard operating conditions. A comparison between the experimental and CFD data demonstrates that the CFD method can predict the pressure drop of the axial cyclone separator excellently. Additionally, the results show that the axial flow cyclone separators have a pressure drop coefficient of approximately 7.5. To study the effect of ambient pressure and temperature on pressure drops, the same CFD method was employed to predict the resistance performance under various operating conditions. Then the numerical results were compared with the data of a normalization process method of pressure drops raised in this paper. Their comparison demonstrated that the normalization method had a high precision in predicting the influence of ambient operating parameters on pressure drops of an axial flow cyclone separator.

Modeling of Turbulent Flows Through the Annular Channel with Eccentricity and Rotating Inner Cilinder

2012 ◽  
Vol 7 (4) ◽  
pp. 79-86
Author(s):  
Evgeny Podryabinkin ◽  
Valeriy Rudyak
Keyword(s):  
Pressure Drop ◽  
Turbulent Flows ◽  
Transport Model ◽  
Reverse Flow ◽  
Axial Flow ◽  
Annular Channel ◽  
Rotational Flow ◽  
Concentric Annulus ◽  
Cylindrical Annulus ◽  
Wide Range

In this paper fully developed turbulent flows of Newtonian fluid in cylindrical annulus with eccentricity and rotating inner cylinder has been systematically studied. Modeling has been performed on the base of Menter Shear Transport model of turbulence in a wide range of Reynolds numbers, eccentricity, and radii ratio. As the result dependencies of flow field and pressure drop along the channel on geometrical and flow parameters have been found. It was shown that flow characteristics and dependence of the pressure drop are determined by which flow axial or rotational dominates and caused generation of turbulence. When rotational flow dominates the dependence of the pressure drop is almost linear. When axial flow dominates rotation practically has no impact on the pressure drop in concentric annulus. Appearance of the reverse flow in eccentric channel has a major impact on the pressure drop. In case when rotational flow dominates, appearance of the reverse flow is accompanied by threshold flow restructuring at some critical value of eccentricity. A correlation for determination of the pressure drop in various regimes has been developed for the case of concentric annulus

Orthogonal experimental design of an axial flow cyclone separator

2019 ◽  
Vol 144 ◽  
pp. 107645 ◽  
Author(s):  
Yanqin Mao ◽  
Wenhao Pu ◽  
Hao Zhang ◽  
Qiyu Zhang ◽  
Zhangyang Song ◽  
...  
Keyword(s):  
Experimental Design ◽  
Axial Flow ◽  
Orthogonal Experimental Design ◽  
Cyclone Separator ◽  
Axial Flow Cyclone
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