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ISSN Imprimir: 1064-2285
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Volume 47, 2016
Volume 46, 2015
Volume 45, 2014
Volume 44, 2013
Volume 43, 2012
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Heat Transfer Research
NUMERICAL AND EXPERIMENTAL INVESTIGATIONS OF SPEAKER-DRIVEN SYNTHETIC JET ACTUATOR FOR ELECTRONICS COOLING APPLICATIONS
School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300
Nibong Tebal, Penang, Malaysia; Faculty of Mechanical Engineering, Universiti Teknologi MARA Cawangan Pulau Pinang, 13500
Permatang Pauh, Penang, Malaysia
Mohd Zulkifly Abdullah
School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, 14300, Malaysia
Mohd A. Ismail
School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong
Tebal, P. Pinang, Malaysia
A synthetic jet is a preferable device to remove heat from microelectronic systems due to its low power consumption, minimal noise, and simplicity. In this study, a speaker-driven synthetic jet is investigated to analyze its cooling capability for possible use in electronic devices. Both numerical and experimental analyses are carried out on a synthetic jet oriented vertically. A three-dimensional numerical simulation of synthetic jet impingement cooling is carried out in ANSYS Fluent with dynamic mesh method. The excitation frequency and voltage to generate the synthetic jet is set to 100 Hz and 4 Vpp (voltage peak-to-peak), respectively. The effect of heater input power (3 W to 15 W) and orifice-to-plate distance (10 mm to 70 mm) are studied for a constant cavity of 8-mm orifice diameter. The simulation results are validated using experimental data, and good agreement is achieved. Results show that the studied input power does significantly affect Nuavg for 10 mm ≤ H ≤ 70 mm.
Alimohammadi, S., Fanning, E., Persoons, T., and Murray, D.B., Characterization of Flow Vectoring Phenomenon in Adjacent Synthetic Jets Using CFD and PIV, Comput. Fluids, vol. 140, pp. 232-246, 2016.
Arik, M., Sharma, R., Lustbader, J., and He, X., Steady and Unsteady Air Impingement Heat Transfer for Electronics Cooling Applications, J. Heat Transf., vol. 135, no. 11, pp. 111009-111009-8, 2013.
Bhapkar, U.S., Srivastava, A., and Agrawal, A., Acoustic and Heat Transfer Characteristics of an Impinging Elliptical Synthetic Jet Generated by Acoustic Actuator, Int. J. Heat Mass Transf., vol. 79, pp. 12-23, 2014.
Bhapkar, U.S., Srivastava, A., and Agrawal, A., Proper Cavity Shape Can Mitigate Confinement Effect in Synthetic Jet Impingement Cooling, Exp. Therm. Fluid Sci., vol. 68, pp. 392-401, 2015.
Chaudhari, M., Puranik, B., and Agrawal, A., Heat Transfer Characteristics of Synthetic Jet Impingement Cooling, Int. J. Heat Mass Transf., vol. 53, pp. 1057-1069, 2010.
Deng, X., Xia, Z., Luo, Z., and Wang, L., A Novel Optimal Design for an Application-Oriented Synthetic Jet Actuator, Chinese J. Aeronaut., vol. 27, no. 4, pp. 514-520, 2014.
Deng, X., Luo, Z., Xia, Z., Gong, W., and Wang, L., Active-Passive Combined and Closed-Loop Control for the Thermal Management of High-Power LED based on a Dual Synthetic Jet Actuator, Energy Convers. Manage., vol. 132, pp. 207-212, 2017.
Fugal, S.R., Smith, B.L., and Spall, R.E., Displacement Amplitude Scaling of a Two-Dimensional Synthetic Jet, Phys. Fluids, vol. 17, no. 4, pp. 1-10, 2005.
Ghaffari, O., Solovitz, S.A., and Arik, M., An Investigation into Flow and Heat Transfer for a Slot Impinging Synthetic Jet, Int. J. Heat Mass Transf., vol. 100, pp. 634-645, 2016.
Gil, P. and Strzelczyk, P., Performance and Efficiency of Loudspeaker Driven Synthetic Jet Actuator, Exp. Therm. Fluid Sci., vol. 76, pp. 163-174, 2016.
Hsu, S.S., Chou, Y.J., Travnicek, Z., Lin, C.F., Wang, A.B., and Yen, R.H., Numerical Study of Nozzle Design for the Hybrid Synthetic Jet Actuator, Sensors Actuators, A Phys., vol. 232, pp. 172-182, 2015.
Jain, M., Puranik, B., and Agrawal, A.A., Numerical Investigation of Effects of Cavity and Orifice Parameters on the Characteristics of a Synthetic Jet Flow, Sensors Actuators, A Phys., vol. 165, pp. 351-366, 2011.
Jang, D. and Lee, K., Flow Characteristics of Dual Piezoelectric Cooling Jets for Cooling Applications in Ultra-Slim Electronics, Int. J. Heat Mass Transf., vol. 79, pp. 201-211, 2014.
Jeng, T.M. and Hsu, W.T., Experimental Study of Mixed Convection Heat Transfer on the Heated Plate with the Circular-Nozzle Synthetic Jet, Int. J. Heat Mass Transf., vol. 97, pp. 559-568, 2016.
Lee, C.Y.Y., Woyciekoski, M.L., and Copetti, J.B., Experimental Study of Synthetic Jets with Rectangular Orifice for Electronic Cooling, Exp. Therm. Fluid Sci., vol. 78, pp. 242-248, 2016.
Li, W., Jin, D., and Zhao, Y., Efficient Nonlinear Reduced-Order Modeling for Synthetic-Jet-Based Control at High Angle of Attack, Aerosp. Sci. Technol., vol. 62, pp. 98-107, 2017.
Liu, Y.H., Chang, T.H., and Wang, C.C., Heat Transfer Enhancement of an Impinging Synthetic Air Jet Using Diffusion-Shaped Orifice, Appl. Therm. Eng., vol. 94, pp. 178-185, 2016.
Liu, Y.H., Tsai, S.Y., and Wang, C.C., Effect of Driven Frequency on Flow and Heat Transfer of an Impinging Synthetic Air Jet, Appl. Therm. Eng., vol. 75, pp. 289-297, 2015.
Liu, Y., Wang, B., and Liu, S., Numerical Simulation of High-Power Synthetic Jet Actuator Flowfield and Its Influence on Mixing Control, J. Therm. Sci., vol. 17, no. 3, pp. 207-211, 2008.
Luo, Z., Deng, X., Xia, Z., Wang, L., and Gong, W., Flow Field and Heat Transfer Characteristics of Impingement Based on a Vectoring Dual Synthetic Jet Actuator, Int. J. Heat Mass Transf., vol. 102, pp. 18-25, 2016.
Lv, Y., Zhang, J., Shan, Y., and Tan, X., Numerical Investigation for Effects of Actuator Parameters and Excitation Frequencies on Synthetic Jet Fluidic Characteristics, Sensors Actuators, A Phys., vol. 219, pp. 100-111, 2014.
Mangate, L.D. and Chaudhari, M.B., Experimental Study on Heat Transfer Characteristics of a Heat Sink with Multiple-Orifice Synthetic Jet, Int. J. Heat Mass Transf, vol. 103, pp. 1181-1190, 2016.
Mangate, L.D. and Chaudhari, M.B., Heat Transfer and Acoustic Study of Impinging Synthetic Jet Using Diamond and Oval Shape Orifice, Int. J. Therm. Sci, vol. 89, pp. 100-109, 2015.
Silva, L.A. and Ortega, A., Convective Heat Transfer Due to an Impinging Synthetic Jet: A Numerical Investigation of a Canonical Geometry, J. Heat Transf., vol. 135, pp. 082201-082201-11, 2013.
Smith, B.L. and Glezer, A., The Formation and Evolution of Synthetic Jets, Phys. Fluids, vol. 10, no. 9, pp. 2281-2297, 1998. Xia, Q. and Zhong, S., Enhancement of Inline Mixing with Lateral Synthetic Jet Pairs at Low Reynolds Numbers: The Effect of Fluid Viscosity, Flow Meas. Instrum., vol. 53, pp. 308-316, 2017.
Xia, Q., Lei, S., Ma, J. and Zhong, S., Numerical Study of Circular Synthetic Jets at Low Reynolds Numbers, Int. J. Heat Fluid Flow, vol. 50, pp. 456-466, 2014.
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