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

Li, Hongmin

doi:10.1080/19942060.2009.11015261

Cited by 14 publications

(14 citation statements)

References 15 publications

(13 reference statements)

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“…As mentioned earlier, CFD is applicable for modeling various fluid flows (Akbarian et al, 2018). As an example, Li (Li, 2009) applied CFD in order to analyze fluid flow in a 1-stage centrifugal fan. Comparison of experimental data and numerical results revealed the applicability of CFD in accurate flow modeling.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of nanofluid flow inside a root canal

Ghalandari

Koohshahi

Mohamadian

et al. 2019

Engineering Applications of Computational Fluid Mechanics

107

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Silver nano particles have antimicrobial property which makes them appropriate for disinfection. Due to their antimicrobial feature, these particles are applicable for root canal irrigation. Fluid flow inside root canal and its appropriate circulation results in more efficient removal of microorganisms. Due to the very small dimensions of a root canal, performing experimental research is very difficult to identify the phenomena occurring in the root canal; therefore, numerical investigation will be very helpful to gain appropriate insight into the flow features of a root canal during irrigation for disinfection. Computation Fluid Dynamic (CFD) can be employed to numerically simulate the flow of irrigants inside the root canal. In the present study, the flow of Ag/water nanofluid in the root canal is numerically modeled. In order to evaluate the impact of height of injection and nanofluid concentration, two heights and concentrations are considered and compared. According to the results, lower injection height is more favorable due to better circulation of an irrigant in the root canal. Moreover, increase in the concentration of the nanofluid leads to reduction in maximum velocity of the fluid; which is attributed to higher increase in dynamic viscosity in comparison with the density. Velocity and wall shear stress contours in various cases are represented to gain better insight into the irrigant motion inside the canal. According to the results of simulation, wall shear stress of the root canal increases by increment in the concentration of the nanofluid and volumetric flow rate of the irrigants.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of nanofluid flow inside a root canal

Ghalandari

Koohshahi

Mohamadian

et al. 2019

Engineering Applications of Computational Fluid Mechanics

107

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“…Details on the speed torque testing system, equipments, and testing method can be found in a previous study of the present author [28]. The results of the speed torque test are the rotation speeds, power input, efficiency of the motor, current, and voltage, as shown in Fig.…”

Section: Heat Generationmentioning

confidence: 98%

Cooling of a permanent magnet electric motor with a centrifugal impeller

Li¹

2010

International Journal of Heat and Mass Transfer

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“…Rihtaršič et al [5] investigated the flow through the centrifugal impeller of a vacuum cleaner unit, using experimental measurements and numerical simulations. Li [6] performed flow analysis on a fan for a centrifugal fan motor system with a ported diffuser and calculated the efficiencies according to the orifice diameter and the energy loss for each component of the fan motor system. Park et al [7] performed CFD analysis on centrifugal fans for a vacuum cleaner and analysed the effect of the shape of the guide vanes on the suction performance.…”

Section: • Using the Design Of Experiments The Optimum Model With Thmentioning

confidence: 99%

Optimization of the Flow Path Efficiency in a Vacuum Cleaner Fan

2018

SV-JME

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As vacuum cleaners become smaller, the size of their main components must decrease correspondingly. Although compact vacuum cleaners have different flow characteristics in comparison to full-size vacuum cleaners, research on compact vacuum cleaners is limited. In this study, the fan motor unit for a compact vacuum cleaner, which is 30 % smaller than a full-sized model, was evaluated by performing computational fluid dynamics analysis and design optimization. Since the flow path through the fan motor unit is the primary aspect determining the efficiency of the fan motor unit, the shape of the flow path is optimized. Through parametric studies, the dimensions of the diffuser underneath the fan, such as its thickness, fillet radius, and number of guide vanes, were selected as design variables. The design of the experiments was used to find the optimum design of the diffuser and guide vanes to maximize the flow path efficiency of the cleaner. The optimized model improved the flow path efficiency by 4.2 % in comparison to the initial model.

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

Cited by 14 publications

References 15 publications

Numerical simulation of nanofluid flow inside a root canal

Numerical simulation of nanofluid flow inside a root canal

Cooling of a permanent magnet electric motor with a centrifugal impeller

Optimization of the Flow Path Efficiency in a Vacuum Cleaner Fan

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