A computational and experimental investigation of synthetic jets for cooling of electronics

Name: A computational and experimental investigation of synthetic jets for cooling of electronics
Author: Arık, Mehmet, Utturkar, Y. V.

İsim	A computational and experimental investigation of synthetic jets for cooling of electronics
Yazar	Arık, Mehmet, Utturkar, Y. V.
Basım Tarihi:	2015-06-01
Basım Yeri	- The American Society of Mechanical Engineers
Konu	Heat-transfer
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1043-7398
Kayıt Numarası	adda3e83-b7ad-4617-8837-b2f6418b9b6a
Lokasyon	Mechanical Engineering
Tarih	2015-06-01
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	Seamless advancements in electronics industry resulted in high performance computing. These innovations lead to smaller electronics systems with higher heat fluxes than ever. However, shrinking nature of real estate for thermal management has created a need for more effective and compact cooling solutions. Novel cooling techniques have been of interest to solve the demand. One such technology that functions with the principle of creating vortex rings is called synthetic jets. These jets are mesoscale devices operating as zero-net-mass-flux principle by ingesting and ejection of high velocity working fluid from a single opening. These devices produce periodic jet streams, which may have peak velocities over 20 times greater than conventional, comparable size fan velocities. These jets enhance heat transfer in both natural and forced convection significantly over bare and extended surfaces. Recognizing the heat transfer physics over surfaces require a fundamental understanding of the flow physics caused by microfluid motion. A comprehensive computational and experimental study has been performed to understand the flow physics of a synthetic jet. Computational study has been performed via FLUENT commercial software, while the experimental study has been performed by using laser Doppler anemometry (LDA). Since synthetic jets are typical sine-wave excited between 20 and 60 V range, they have an orifice peak velocity of over 60 m/s, resulting in a Reynolds number of over 2000. Computational fluid dynamics (CFD) predictions on the vortex dipole location fall within 10% of the experimental measurement uncertainty band.
DOI	10.1115/1.4029067
Cilt	137

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A computational and experimental investigation of synthetic jets for cooling of electronics

Yazar Arık, Mehmet, Utturkar, Y. V.

Basım Tarihi 2015-06-01

Basım Yeri - The American Society of Mechanical Engineers

Konu Heat-transfer

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1043-7398

Kayıt Numarası adda3e83-b7ad-4617-8837-b2f6418b9b6a

Lokasyon Mechanical Engineering

Tarih 2015-06-01

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin Seamless advancements in electronics industry resulted in high performance computing. These innovations lead to smaller electronics systems with higher heat fluxes than ever. However, shrinking nature of real estate for thermal management has created a need for more effective and compact cooling solutions. Novel cooling techniques have been of interest to solve the demand. One such technology that functions with the principle of creating vortex rings is called synthetic jets. These jets are mesoscale devices operating as zero-net-mass-flux principle by ingesting and ejection of high velocity working fluid from a single opening. These devices produce periodic jet streams, which may have peak velocities over 20 times greater than conventional, comparable size fan velocities. These jets enhance heat transfer in both natural and forced convection significantly over bare and extended surfaces. Recognizing the heat transfer physics over surfaces require a fundamental understanding of the flow physics caused by microfluid motion. A comprehensive computational and experimental study has been performed to understand the flow physics of a synthetic jet. Computational study has been performed via FLUENT commercial software, while the experimental study has been performed by using laser Doppler anemometry (LDA). Since synthetic jets are typical sine-wave excited between 20 and 60 V range, they have an orifice peak velocity of over 60 m/s, resulting in a Reynolds number of over 2000. Computational fluid dynamics (CFD) predictions on the vortex dipole location fall within 10% of the experimental measurement uncertainty band.

DOI 10.1115/1.4029067

Cilt 137