Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data

Persoons, Tim; Cressall, Rick; Alimohammadi, Sajad

doi:10.3390/act7040067

Cited by 6 publications

(4 citation statements)

References 27 publications

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“…In the present moment, the development of electronic devices is moving in the direction of miniaturizing the size of an electric device and high-power density. The issue of heat dissipation has become one of the most significant obstacles to its further development [15,22,37]. On the other hand, the capability of naturally occurring convection to disperse heat is quite restricted.…”

Section: Introductionmentioning

confidence: 99%

A Review of Experimentation of Synthetic Jet Cooling

Ahmad Faiz Ahmad Kamil,

Sh Mohd Firdaus Sh Abdul Nasir,

Hamid Yusoff

et al. 2023

ARFMTS

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As the electronic device is becoming more advance, the traditional cooling fan in becoming more constrained to its limited dimensions or space. The compact electronic devices with substantial power requirements and tiny electronic components are prone to overheating. This is because these devices dimensions make heat transmission less efficient, making the overheating more likely. Because of the increasing need for smaller devices, makers of electronic components are being compelled to pack transistors into ever-smaller places. This has led to an increase in the amount of overheating that occurs because thermal flow is being constrained. The current period, with its thin and compact electronics, calls for an improved method of cooling, and the synthetic jet-cooling technique will be the subject of the attention of this particular piece of research. The purpose of this study is to discuss the working principles and numerical technique for the synthetic jet cooling that was used in the earlier investigations which investigate the frequency, the distance between synthetic jet and heater, size of the synthetic jet nozzle and size of the synthetic jet volume. In order to make additional progress in enhancing the advancement of synthetic jet technology, it is vital to reviews relevant past research that falls within the area of the study. In addition, as compared to experimental efforts, the numerical technique may result in cost savings and time savings. The use of numerical simulation is essential for accelerating the improvement of the synthetic jet product since it opens up a large potential in the use of electronic devices.

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Section: Introductionmentioning

confidence: 99%

A Review of Experimentation of Synthetic Jet Cooling

Ahmad Faiz Ahmad Kamil,

Sh Mohd Firdaus Sh Abdul Nasir,

Hamid Yusoff

et al. 2023

ARFMTS

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“…Furthermore, Gomes et al [24] studied the influence of the geometry, such as the cavity height and the orifice length, on the synthetic jet velocity derived from the piezo SJ actuator and, consequently, the SJA Helmholtz resonance frequencies. The application of lumped element models to SJs, also referred to as reduced-order models, was also presented and discussed in [13,25,26]. In addition, based on lumped element modeling and the assumption of an incompressible working fluid, Kordik and Travnicek [13] theoretically predicted the optimal diameters of SJ actuator orifices in the cases investigated.…”

Section: Introductionmentioning

confidence: 99%

“…A previous study [25] includes a comprehensive review of the development of various lumped element models as practical tools to design and manufacture SJ actuators. The authors of [26] present a reduced-order model that was developed to predict the performance of synthetic jet actuators. The research concerned a classical SJA configuration consisting of a single actuator with rectangular orifice.…”

Section: Introductionmentioning

confidence: 99%

Helmholtz Resonance Frequency of the Synthetic Jet Actuator

2021

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This paper presents the results of experimental investigations of 108 geometrical configurations of a loudspeaker-driven synthetic jet (SJ) actuator. The considered cases of the SJ actuator were characterized by a high coupling ratio. The experiment was performed to determine the impact of geometry on the Helmholtz resonance frequency. Geometrical parameters of the orifice diameter, orifice length, and cavity volume were changed within a wide range. The dependences of electrical and flow parameters that characterized the synthetic jet actuators as a function of the excitation frequency were also identified. The main goal of the research was to identify the optimal mathematical formula of the model to calculate the Helmholtz resonance frequency in the case of synthetic jet actuators. To determine the model that was characterized by the best fit of the experimental results, an additional geometrical dimensionless parameter, representing the ratio of the orifice cross-section area to the cross-section area of the cavity, was introduced. A significant impact of this parameter on the effective orifice length was noted. Based on the research findings, a model was obtained for which the results of the experiment were in the error range of ±6% for 95% of the measurement data. The obtained model is an improved version of the classical model used in the description of the resonance frequency in the case of a synthetic jet actuator. The model enables highly accurate determination of the Helmholtz resonance frequency at which the maximum synthetic jet actuator parameters occur.

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“…The authors wish to make the following corrections to this paper [1] in Section 2.2, Equation (19). The authors wish to replace:…”

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confidence: 99%