Numerical Simulation of Flow Field for a Whole Centrifugal Fan and Analysis of the Effects of Blade Inlet Angle and Impeller Gap

Yu, Zhao; Song, Li; He, Wenqi; Wang, Weixiong; Huang, Dongtao; Zhu, Zhenli

doi:10.1080/10789669.2005.10391137

Cited by 41 publications

(30 citation statements)

References 12 publications

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“…The mechanism of the pressure recovery was not explained. Yu et al (2005) studied experimentally and numerically the flow in a scroll cage centrifugal fan focusing on the interaction among the inlet section, impeller, and scroll cage. They reported that the fan-blade inlet angle was important to the fan performance.…”

Section: Air Entering the Fan Impellermentioning

confidence: 99%

“…Secondly, the cooling fan takes shaft space and a longer and thicker shaft has to be used compared to the through-flow type units. The through flow type units are used in most of the household vacuum cleaners (Wright, 1984;Wright, Tzou and Madhavan, 1984;Yu et al, 2005). Since the main air flow sucked by the working fan flows through the motor and cools the motor, the air has to be clean.…”

Section: Introductionmentioning

confidence: 99%

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Fluid Flow Analysis of a Single-Stage Centrifugal Fan with a Ported Diffuser

Li¹

2009

Engineering Applications of Computational Fluid Mechanics

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A numerical model is developed for the thermal fluid flow process in a single stage through flow type centrifugal air moving fan designed for vacuum cleaners. The model predicted data are compared with the experimental results obtained following the industry standards. The agreements between the numerical and experimental results validate the model. Quantitative energy losses in every step along the flow path are reported. Detailed flow structures and pressure distributions are presented. The air-moving performances of the fan under various conditions are explained. Suggestions on design improvement and application of the motor-fan system architecture are given.

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Section: Air Entering the Fan Impellermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fluid Flow Analysis of a Single-Stage Centrifugal Fan with a Ported Diffuser

Li¹

2009

Engineering Applications of Computational Fluid Mechanics

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“…These works can be found in some popular volumes (Lakshminarayana 1996;McKenzie 1997;Bleier 1998). In recent years, a large number of studies have adopted numerical approaches, and these studies mostly focus on the modeling of the fan flow (Hung et al 1999;Yu et al 2005;Huang and Hsieh 2009;Gurina 2010;Hurault et al 2010) and influence of tip flows on the fan performance (Jiang et al 2001;Lee et al 2003;Zhu et al 2005) and noise generation (Jang et al 2003;Jiang et al 2007). However, few works were reported for the study of the contra-rotating axial flow fan.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on performance of contra-rotating axial flow fan

Zhang

2015

Int J Coal Sci Technol

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Contra-rotating axial flow fan is a kind of the vital equipment in coal mines. Their work conditions directly affect the safety of staff and production. In the paper, the performance of the contra-rotating axial flow fan is experimentally investigated. The study is focused on the fan performance, the shaft power and the match between the motor and fan efficiency at different blade angles. The results show that the blade angle 43°/26°has the best aerodynamic performance. The first engine has a greater impact on the fan than the second one. The blade angle with the best aerodynamic performance does not necessarily correspond to the one with the best match between the motor and fan efficiency. The blade angle 43°/24°is the best choice for the operation of the fan in the present study.

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“…Zhao Yu [7] analyzed the effects of blade inlet angle and impeller gap. He found that the blade inlet angle and the impeller gap play an important role for fan performance.…”

Section: Introductionmentioning

confidence: 99%