Experimental study of flow structure and heat transfer under a jet flow past a spherical-cavity obstacle

2006 ◽  
Vol 79 (4) ◽  
pp. 657-665 ◽  
Author(s):  
V. I. Terekhov ◽  
V. L. Barsanov ◽  
S. V. Kalinina ◽  
Yu. M. Mshvidobadze
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Flow Structure ◽  
Spherical Cavity ◽  
Jet Flow ◽  
Flow Past

Impingement of an impact jet onto a spherical cavity. Flow structure and heat transfer

2009 ◽  
Vol 52 (11-12) ◽  
pp. 2498-2506 ◽  
Author(s):  
V.I. Terekhov ◽  
S.V. Kalinina ◽  
Yu.M. Mshvidobadze ◽  
K.A. Sharov
Keyword(s):  
Heat Transfer ◽  
Flow Structure ◽  
Spherical Cavity ◽  
Cavity Flow ◽  
Impact Jet

Experimental Study of the Influence of the Shape of the Gap between the Rib and Flat Plate on the Near-Wall Flow Structure and Heat Transfer

2019 ◽  
Vol 57 (3) ◽  
pp. 379-387 ◽  
Author(s):  
S. A. Isaev ◽  
V. N. Afanasiev ◽  
K. S. Egorov ◽  
Dehai Kong
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Flat Plate ◽  
Flow Structure ◽  
Wall Flow ◽  
Near Wall

An Experimental Study of Passive and Active Heat Transfer Enhancement in Microchannels

2013 ◽  
Vol 136 (3) ◽  
Author(s):  
Yingying Wang ◽  
Yoav Peles
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Nusselt Number ◽  
Heat Transfer Enhancement ◽  
Jet Flow ◽  
Hydrodynamic Effect ◽  
Channel Height ◽  
Transfer Enhancement ◽  
Micro Particle Image Velocimetry ◽  
Flow Mixing

An experimental study on single-phase heat transfer and fluid flow downstream a single microscale pillar in a microchannel was conducted. A secondary jet flow was issued from slits formed along the pillar. A comparison of the thermal performances of a plain microchannel, a microchannel with a pillar, and a microchannel with a jet issued from a pillar was performed to elucidate the merits of this heat transfer enhancement technique. It was found that the presence of a pillar upstream the heater enhanced the heat transfer; the addition of jet flow issued from a pillar further enhanced the heat transfer. At a Reynolds number of 730, an improvement of spatially averaged Nusselt number of 80% was achieved due to the combined effect of the pillar and the jet compared with the corresponding plain channel. Micro particle image velocimetry (μPIV) measurements provided planar velocity fields at two planes along the channel height, and allowed flow structure visualization. Turbulent kinetic energy (TKE) was used to measure flow mixing and to quantify the hydrodynamic effect of the jet. It was shown that the TKE is closely related to the Nusselt number.

Experimental study of heat transfer with a jet flow in the complex space of small steel containment

2021 ◽  
Vol 154 ◽  
pp. 108124
Author(s):  
Shengsheng Lin ◽  
Shengfei Wang ◽  
Fenglei Niu ◽  
Xiaowei Jiang
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Complex Space ◽  
Jet Flow ◽  
Small Steel
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