CFD analysis of electrostatic fluid accelerators for forced convection cooling

Jewell-Larsen, N.E.; Hsu, Cheng-Wei; Krichtafovitch, Igor; Montgomery, S.W.; DiBene, J.T.; Mamishev, A.V.

doi:10.1109/tdei.2008.4712680

Cited by 28 publications

(16 citation statements)

References 20 publications

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“…Numerical studies of ion wind generator have been presented for most ion wind configurations [43][44][45][46][47][48]. In this work, a simplified charge transport model for the discharge drift area is used with the boundary condition of charge density at the tips of electrodes given by the measured current-voltage (I-V) characteristics of the corona to simulate the motion of ion wind.…”

Section: Numerical Simulation Discussion and Applicationmentioning

confidence: 99%

Estimating the effect of asymmetric electrodes in bipolar discharge ion wind generator

Dau

Tran

Dinh

et al. 2018

IEEE Trans. Dielect. Electr. Insul.

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We present the study of a simple and efficient air-flow generator under the effect of ion winds which are created by corona discharge. Based on our recent research of ion wind with bipolar corona using parallel pins, this work reports an investigation and evaluation of the corona system in asymmetrical configurations, where the two electrodes have different tip shapes. The system of new configuration is investigated both experimentally and numerically. The numerical and experimental results are the base to establish a regime of stable operation by the measured I-V characteristics. The optimized setup can generate an air flow up to 2.24 m/s at the atmospheric pressure. With the asymmetrical configuration of different pin tip shapes, the system can be used in many mixing applications such as mixing solvent and die where the generated vortices are also presented.

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Section: Numerical Simulation Discussion and Applicationmentioning

confidence: 99%

Estimating the effect of asymmetric electrodes in bipolar discharge ion wind generator

Dau

Tran

Dinh

et al. 2018

IEEE Trans. Dielect. Electr. Insul.

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“…For the flow equations, a standard hydrodynamic boundary condition of no-slip is applied to all solid surfaces of corona electrode and channel wall. An outletflow condition and zero pressure is applied at the channel outlet, while a normal flow (v = 0) with a horizontal velocity component, u, prescribed from Bernoulli's equation is used at the channel inlet [35,38,40,41]. More details can be found in [38,42].…”

Section: A Solution Domain and Boundary Conditionsmentioning

confidence: 99%

Numerical Analysis and Optimization of Miniature Electrohydrodynamic Air Blowers

Ramadhan

Kapur

Summers

et al. 2017

IEEE Trans. Plasma Sci.

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“…Due to the strong influence of the geometrical parameters of EHD devices on the corona discharge process and the resulting EHD flow, and in order to save cost and time, significant modelling efforts have been performed over the last decade to study the impact of design parameters and optimisation of mesoscale EHD air pumps on the performance of flow generation or heat transfer characteristics [23,[31][32][33][34][35]. Very recently, Ramadhan et al [36] presented a numerical study to optimise the configuration of miniature wire-to-plane EHD blower for a range of heights (from 2 to 10 mm) based on different operating conditions (voltage and power).…”

Section: Introductionmentioning

confidence: 99%

Performance and flow characteristics of miniature EHD air blowers for thermal management applications

Ramadhan

Kapur

Summers

et al. 2018

Journal of Electrostatics

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Electrohydrodynamic (EHD) air blowers are receiving increasing attention as a thermal management cooling solution to overcome the restrictions of traditional rotary cooling systems used in small-scale consumer electronics. In this work, the performance and flow pattern characteristics of miniature EHD air blowers are evaluated for practical convective heat transfer applications, based on device size, operating voltage and power, and generated flow rate. For a range of blower heights up to 10 mm, two-dimensional (2D) and three-dimensional (3D) numerical models of a wire-to-plane EHD channel configuration are developed and validated against previous experimental data. Investigation of the influence of blower sidewalls, based on width parameter, on flow characteristics reveals that the 2D simulations for short and wide blower domains are valid to predict the generated flow rates effectively compared to that obtained by the means of 3D simulations. An optimized combined EHD blower is developed as a flow-controlled cooling system in thermal management applications, which minimizes the required operating voltages for specified flow rates. Comparisons against commercial rotary blowers demonstrate that the miniature EHD blowers are more competitive as cooling solutions for compact applications and extended heated surfaces based on transduction efficiency, blower size, flow production of uniform velocity profile, and power consumption.

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CFD analysis of electrostatic fluid accelerators for forced convection cooling

Cited by 28 publications

References 20 publications

Estimating the effect of asymmetric electrodes in bipolar discharge ion wind generator

Estimating the effect of asymmetric electrodes in bipolar discharge ion wind generator

Numerical Analysis and Optimization of Miniature Electrohydrodynamic Air Blowers

Performance and flow characteristics of miniature EHD air blowers for thermal management applications

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