Numerical Study of Liquid Flow and Heat Transfer in a Microchannel with In-Line Array of bars

2006 ◽  
Author(s):  
Chunmiao Ye ◽  
Chengxian Lin
Keyword(s):  
Heat Transfer ◽  
Liquid Flow ◽  
Numerical Study ◽  
Flow And Heat Transfer ◽  
Line Array

Experimental and Numerical Study on Flow Heat Transfer in Microchannels

2006 ◽  
Author(s):  
Jiang-Tao Liu ◽  
Yong Tian ◽  
Xiao-Feng Peng
Keyword(s):  
Heat Transfer ◽  
Liquid Flow ◽  
Numerical Study ◽  
Rectangular Cross Section ◽  
Numerical Approach ◽  
Cooling Capacity ◽  
Silicon Substrates ◽  
Entry Length ◽  
Flow And Heat Transfer ◽  
Series Of Experiments

An investigation was conducted on liquid flow and heat transfer in partially heated microchannels etched on the surface of silicon substrates. The rectangular cross-section channels had a hydraulic diameter of 100 microns. A series of experiments were carried out at different liquid flow rates and heating power. A numerical approach was made for single-phase liquid flow in the microchannels. A laminar flow model was employed in the simulation. Solid-fluid coupled thermal energy model was proposed to solve the conjugate heat transfer in the fluid and solid domains. The comparison of simulations with the experiment results shows good agreement. High cooling capacity was found in present study compared with the available data, indicating strong entry-length effect.

A Parametric Numerical Study of Fluid Flow and Heat Transfer in a Computer Chassis

2015 ◽  
Vol 9 (3) ◽  
pp. 242 ◽  
Author(s):  
Efstathios Kaloudis ◽  
Dimitris Siachos ◽  
Konstantinos Stefanos Nikas
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Numerical Study ◽  
Flow And Heat Transfer

Numerical modeling of the influence of bubbles on flow and heat transfer in the descending gas-liquid flow in a pipe

2012 ◽  
Vol 9 (1) ◽  
pp. 131-135
Author(s):  
M.A. Pakhomov
Keyword(s):  
Heat Transfer ◽  
Gas Phase ◽  
Liquid Flow ◽  
Bubble Diameter ◽  
Gas Content ◽  
Two Phase ◽  
Eulerian Description ◽  
Flow And Heat Transfer ◽  
Gas Liquid Flow ◽  
The Mathematical Model

The paper presents the results of modeling the dynamics of flow, friction and heat transfer in a descending gas-liquid flow in the pipe. The mathematical model is based on the use of the Eulerian description for both phases. The effect of a change in the degree of dispersion of the gas phase at the input, flow rate, initial liquid temperature and its friction and heat transfer rate in a two-phase flow. Addition of the gas phase causes an increase in heat transfer and friction on the wall, and these effects become more noticeable with increasing gas content and bubble diameter.

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