An investigation into momentum and temperature fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing

Name: An investigation into momentum and temperature fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing
Author: Ghaffari, Omidreza, Doğruöz, M. B., Arık, Mehmet

İsim	An investigation into momentum and temperature fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing
Yazar	Ghaffari, Omidreza, Doğruöz, M. B., Arık, Mehmet
Basım Tarihi:	2014
Basım Yeri	- Begell House Inc.
Konu	Heat transfer enhancement, Synthetic jet, Turbulent flow, CFD, Electronics cooling, Impingement heat transfer
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2-s2.0-84963897273
Kayıt Numarası	37267531-e52d-4b1d-8cba-2ae59d0a6c92
Lokasyon	Mechanical Engineering
Tarih	2014
Notlar	TÜBİTAK
Örnek Metin	Impinging synthetic jets have been identified as a promising technology for cooling miniature structures. Recognizing their thermal performance on the target surface requires a fundamental understanding of the momentum field produced by the pulsating coolant flow which is dependent on the distance between the nozzle exit and the wall. It was earlier reported that the cooling performance of a synthetic jet is highly sensitive to this distance, i.e. as the nozzle-to-plate distance is reduced the jet performance degrades, however the fundamental mechanism for this behavior has not been well-understood. Therefore, a computational study is performed to investigate the flow and thermal fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing of H/Dh = 2. Spatial discretization is implemented via a second order upwind scheme and a second-order implicit scheme is used for temporal discretization to ensure stability. The results show that the pulsating flow at the nozzle exit generates vortices and these vortices seem to have effect on the target surface profiles before they get dissipated. Mean surface profiles are also determined and their applicability at various frequencies is discussed.
DOI	10.1615/IHTC15.hte.008319

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An investigation into momentum and temperature fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing

Yazar Ghaffari, Omidreza, Doğruöz, M. B., Arık, Mehmet

Basım Tarihi 2014

Basım Yeri - Begell House Inc.

Konu Heat transfer enhancement, Synthetic jet, Turbulent flow, CFD, Electronics cooling, Impingement heat transfer

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2-s2.0-84963897273

Kayıt Numarası 37267531-e52d-4b1d-8cba-2ae59d0a6c92

Lokasyon Mechanical Engineering

Tarih 2014

Notlar TÜBİTAK

Örnek Metin Impinging synthetic jets have been identified as a promising technology for cooling miniature structures. Recognizing their thermal performance on the target surface requires a fundamental understanding of the momentum field produced by the pulsating coolant flow which is dependent on the distance between the nozzle exit and the wall. It was earlier reported that the cooling performance of a synthetic jet is highly sensitive to this distance, i.e. as the nozzle-to-plate distance is reduced the jet performance degrades, however the fundamental mechanism for this behavior has not been well-understood. Therefore, a computational study is performed to investigate the flow and thermal fields of a meso-scale slot synthetic jet for a small jet-to-surface spacing of H/Dh = 2. Spatial discretization is implemented via a second order upwind scheme and a second-order implicit scheme is used for temporal discretization to ensure stability. The results show that the pulsating flow at the nozzle exit generates vortices and these vortices seem to have effect on the target surface profiles before they get dissipated. Mean surface profiles are also determined and their applicability at various frequencies is discussed.

DOI 10.1615/IHTC15.hte.008319