Forced convection in micro-channel with synthetic jet: Effect of operating frequency

Ann Lee; Victoria Timchenko; Guan H. Yeoh; John A. Reizes

doi:10.1115/ICNMM2012-73020

Forced convection in micro-channel with synthetic jet: Effect of operating frequency

Ann Lee^*, Victoria Timchenko, Guan H. Yeoh, John A. Reizes

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

Abstract

A three-dimensional computational model has been developed to investigate the cooling effect on the microchip of synthetic jet interacting with a cross-flow in a micro-channel. The conjugate problem is solved by determining the temperature distributions in a heated solid and the fluid flowing in the micro-channel which cools it, thereby simulating the application to a microchip. A parametric study was performed on a fixed geometry by using 1 MWm ^-2 heat flux at the surface of the silicon wafer to investigate the effect of frequency of the jet at a constant Reynolds number, that is the amplitude is reduced in proportion to the increase in frequency. The hot region in the silicon wafer resulting from the use fluid flowing undisturbed in a micro-channel, are removed when the synthetic jet is switched on thereby significantly lowering the maximum temperature in the wafer. Contrary to the two-dimensional case, there is little difference in the cooling performance when the jet was driven at different frequencies in three-dimensional configuration. This is illustrated by the fact in the end of the simulations at a jet Reynolds number of 40, the maximum temperature in the substrate was 0.5 K lower at 1120 Hz than at 560 Hz and 1 K lower than at 280 Hz.

Original language	English
Title of host publication	ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012
Place of Publication	New York
Publisher	American Society of Mechanical Engineers (ASME)
Pages	257-266
Number of pages	10
ISBN (Print)	9780791844793
DOIs	https://doi.org/10.1115/ICNMM2012-73020
Publication status	Published - 2012
Externally published	Yes
Event	ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels, ICNMM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012 - Rio Grande, Puerto Rico Duration: 8 Jul 2012 → 12 Jul 2012

Other

Other	ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels, ICNMM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012
Country/Territory	Puerto Rico
City	Rio Grande
Period	8/07/12 → 12/07/12

Keywords

Conjugate heat transfer
Micro-channel
Synthetic jet

Access to Document

10.1115/ICNMM2012-73020

Cite this

Lee, A., Timchenko, V., Yeoh, G. H., & Reizes, J. A. (2012). Forced convection in micro-channel with synthetic jet: Effect of operating frequency. In ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012 (pp. 257-266). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ICNMM2012-73020

Lee, Ann ; Timchenko, Victoria ; Yeoh, Guan H. et al. / Forced convection in micro-channel with synthetic jet : Effect of operating frequency. ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012. New York : American Society of Mechanical Engineers (ASME), 2012. pp. 257-266

@inproceedings{a41d509d9aea45dfa59847a81f343694,

title = "Forced convection in micro-channel with synthetic jet: Effect of operating frequency",

abstract = "A three-dimensional computational model has been developed to investigate the cooling effect on the microchip of synthetic jet interacting with a cross-flow in a micro-channel. The conjugate problem is solved by determining the temperature distributions in a heated solid and the fluid flowing in the micro-channel which cools it, thereby simulating the application to a microchip. A parametric study was performed on a fixed geometry by using 1 MWm -2 heat flux at the surface of the silicon wafer to investigate the effect of frequency of the jet at a constant Reynolds number, that is the amplitude is reduced in proportion to the increase in frequency. The hot region in the silicon wafer resulting from the use fluid flowing undisturbed in a micro-channel, are removed when the synthetic jet is switched on thereby significantly lowering the maximum temperature in the wafer. Contrary to the two-dimensional case, there is little difference in the cooling performance when the jet was driven at different frequencies in three-dimensional configuration. This is illustrated by the fact in the end of the simulations at a jet Reynolds number of 40, the maximum temperature in the substrate was 0.5 K lower at 1120 Hz than at 560 Hz and 1 K lower than at 280 Hz.",

keywords = "Conjugate heat transfer, Micro-channel, Synthetic jet",

author = "Ann Lee and Victoria Timchenko and Yeoh, {Guan H.} and Reizes, {John A.}",

year = "2012",

doi = "10.1115/ICNMM2012-73020",

language = "English",

isbn = "9780791844793",

pages = "257--266",

booktitle = "ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012",

publisher = "American Society of Mechanical Engineers (ASME)",

note = "ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels, ICNMM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012 ; Conference date: 08-07-2012 Through 12-07-2012",

}

Lee, A, Timchenko, V, Yeoh, GH & Reizes, JA 2012, Forced convection in micro-channel with synthetic jet: Effect of operating frequency. in ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012. American Society of Mechanical Engineers (ASME), New York, pp. 257-266, ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels, ICNMM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012, Rio Grande, Puerto Rico, 8/07/12. https://doi.org/10.1115/ICNMM2012-73020

Forced convection in micro-channel with synthetic jet: Effect of operating frequency. / Lee, Ann; Timchenko, Victoria; Yeoh, Guan H. et al.
ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012. New York: American Society of Mechanical Engineers (ASME), 2012. p. 257-266.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Forced convection in micro-channel with synthetic jet

T2 - ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels, ICNMM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012

AU - Lee, Ann

AU - Timchenko, Victoria

AU - Yeoh, Guan H.

AU - Reizes, John A.

PY - 2012

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N2 - A three-dimensional computational model has been developed to investigate the cooling effect on the microchip of synthetic jet interacting with a cross-flow in a micro-channel. The conjugate problem is solved by determining the temperature distributions in a heated solid and the fluid flowing in the micro-channel which cools it, thereby simulating the application to a microchip. A parametric study was performed on a fixed geometry by using 1 MWm -2 heat flux at the surface of the silicon wafer to investigate the effect of frequency of the jet at a constant Reynolds number, that is the amplitude is reduced in proportion to the increase in frequency. The hot region in the silicon wafer resulting from the use fluid flowing undisturbed in a micro-channel, are removed when the synthetic jet is switched on thereby significantly lowering the maximum temperature in the wafer. Contrary to the two-dimensional case, there is little difference in the cooling performance when the jet was driven at different frequencies in three-dimensional configuration. This is illustrated by the fact in the end of the simulations at a jet Reynolds number of 40, the maximum temperature in the substrate was 0.5 K lower at 1120 Hz than at 560 Hz and 1 K lower than at 280 Hz.

AB - A three-dimensional computational model has been developed to investigate the cooling effect on the microchip of synthetic jet interacting with a cross-flow in a micro-channel. The conjugate problem is solved by determining the temperature distributions in a heated solid and the fluid flowing in the micro-channel which cools it, thereby simulating the application to a microchip. A parametric study was performed on a fixed geometry by using 1 MWm -2 heat flux at the surface of the silicon wafer to investigate the effect of frequency of the jet at a constant Reynolds number, that is the amplitude is reduced in proportion to the increase in frequency. The hot region in the silicon wafer resulting from the use fluid flowing undisturbed in a micro-channel, are removed when the synthetic jet is switched on thereby significantly lowering the maximum temperature in the wafer. Contrary to the two-dimensional case, there is little difference in the cooling performance when the jet was driven at different frequencies in three-dimensional configuration. This is illustrated by the fact in the end of the simulations at a jet Reynolds number of 40, the maximum temperature in the substrate was 0.5 K lower at 1120 Hz than at 560 Hz and 1 K lower than at 280 Hz.

KW - Conjugate heat transfer

KW - Micro-channel

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DO - 10.1115/ICNMM2012-73020

M3 - Conference proceeding contribution

AN - SCOPUS:84882347271

SN - 9780791844793

SP - 257

EP - 266

BT - ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012

PB - American Society of Mechanical Engineers (ASME)

CY - New York

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ER -

Lee A, Timchenko V, Yeoh GH, Reizes JA. Forced convection in micro-channel with synthetic jet: Effect of operating frequency. In ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and Minichannels Collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Sum, ICNMM 2012. New York: American Society of Mechanical Engineers (ASME). 2012. p. 257-266 doi: 10.1115/ICNMM2012-73020

Forced convection in micro-channel with synthetic jet: Effect of operating frequency

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