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

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

2022 ◽  
Vol 166 ◽  
pp. 108822
Author(s):  
Yuan Fang ◽  
Shengfei Wang ◽  
Wang Xiong ◽  
Yili Yang ◽  
Shengsheng Lin ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Complex Space ◽  
Small Steel

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

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 thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts

2020 ◽  
Vol 92 (3) ◽  
pp. 30901
Author(s):  
Suvanjan Bhattacharyya ◽  
Debraj Sarkar ◽  
Ulavathi Shettar Mahabaleshwar ◽  
Manoj K. Soni ◽  
M. Mohanraj
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Thermal Performance ◽  
Working Fluid ◽  
The Novel ◽  
Heat Exchanger Tube ◽  
Heat Transfer Augmentation ◽  
Corrugated Tube ◽  
The Impact ◽  
Exchanger Tube

The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments at β = 1200 and α = 600 respectively, while two different corrugations heights (h) are analyzed. While increasing the corrugation height and decreasing the spring ratio, the impact of the swirling effect improves the thermal performance of the system. The maximum thermal performance is obtained when the corrugation height is h = 0.2 and spring ratio y = 1.5. Eventually, correlations for predicting friction factor (f) and Nusselt number (Nu) are developed.

Experimental Study of Heat Transfer in a Strongly Cooled Boundary Layer in Supersonic Air Flow

2002 ◽  
Vol 33 (3-4) ◽  
pp. 4
Author(s):  
E. V. Gurentsov ◽  
V. K. Shikov ◽  
E. B. Eigenson
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Experimental Study ◽  
Air Flow

NUMERICAL INVESTIGATION OF CONJUGATE HEAT TRANSFER FROM LAMINAR WALL JET FLOW OVER A SHALLOW CAVITY

2018 ◽  
Vol 49 (12) ◽  
pp. 1151-1170 ◽  
Author(s):  
Maheandera Prabu Paulraj ◽  
Rajesh Kanna Parthasarathy ◽  
Jan Taler ◽  
Dawid Taler ◽  
Pawel Oclon ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Investigation ◽  
Conjugate Heat Transfer ◽  
Jet Flow ◽  
Wall Jet ◽  
Shallow Cavity ◽  
Wall Jet Flow

Experimental Study of Heat Transfer from Impinging Jet with Upstream and Downstream Crossflow

2010 ◽  
Vol 41 (8) ◽  
pp. 889-900 ◽  
Author(s):  
Daniel Thibault ◽  
Matthieu Fenot ◽  
Gildas Lalizel ◽  
Eva Dorignac
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Impinging Jet
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