A numerical study of a single unsteady laminar slot jet in a confined structure

Name: A numerical study of a single unsteady laminar slot jet in a confined structure
Author: Ghaffari, Omidreza, Doğruöz, M. B., Arık, Mehmet

İsim	A numerical study of a single unsteady laminar slot jet in a confined structure
Yazar	Ghaffari, Omidreza, Doğruöz, M. B., Arık, Mehmet
Basım Tarihi:	2013
Basım Yeri	- ASME
Konu	Pressure, Flow (dynamics), Heat transfer, Cooling, Jets, Nozzles, Electronics
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-0-7918-5549-2
Kayıt Numarası	c7924f2b-c060-49d9-97ce-6bd82d476c2f
Lokasyon	Mechanical Engineering
Tarih	2013
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	With the inherit advantages of air cooling, jet impingement can produce a factor of two or higher heat transfer than conventional fan flow over bodies. Therefore, impinging jets can solve a number of electronics thermal issues. Those jets produce complex flow and thermal structures leading to non-uniform and non-monotonic profiles on target surfaces. A numerical study is performed to investigate the flow and heat transfer characteristics of an unsteady laminar impinging jet emanated from a single high-aspect ratio rectangular (slot) nozzle in a confined arrangement. The spacing between the target plate and the nozzle is such that the jet would still be in its potential core length as it was in a free axial jet. Following the initial transients, flow and heat transfer parameters still vary considerably in time that the instantaneous and time-averaged values of surface profiles are not identical. Instantaneous surface pressure distributions exhibit that the stagnation point translates periodically around the initial jet-symmetry line and the surface profiles demonstrate off-center (non-stagnation point) peaks.
DOI	10.1115/HT2013-17833

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A numerical study of a single unsteady laminar slot jet in a confined structure

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

Basım Tarihi 2013

Basım Yeri - ASME

Konu Pressure, Flow (dynamics), Heat transfer, Cooling, Jets, Nozzles, Electronics

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-0-7918-5549-2

Kayıt Numarası c7924f2b-c060-49d9-97ce-6bd82d476c2f

Lokasyon Mechanical Engineering

Tarih 2013

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

Örnek Metin With the inherit advantages of air cooling, jet impingement can produce a factor of two or higher heat transfer than conventional fan flow over bodies. Therefore, impinging jets can solve a number of electronics thermal issues. Those jets produce complex flow and thermal structures leading to non-uniform and non-monotonic profiles on target surfaces. A numerical study is performed to investigate the flow and heat transfer characteristics of an unsteady laminar impinging jet emanated from a single high-aspect ratio rectangular (slot) nozzle in a confined arrangement. The spacing between the target plate and the nozzle is such that the jet would still be in its potential core length as it was in a free axial jet. Following the initial transients, flow and heat transfer parameters still vary considerably in time that the instantaneous and time-averaged values of surface profiles are not identical. Instantaneous surface pressure distributions exhibit that the stagnation point translates periodically around the initial jet-symmetry line and the surface profiles demonstrate off-center (non-stagnation point) peaks.

DOI 10.1115/HT2013-17833