Numerical simulation on heat transfer process in the reactor cavity of modular high temperature gas-cooled reactor

2017 ◽  
Vol 125 ◽  
pp. 1015-1024 ◽  
Author(s):  
Hangbin Zhao ◽  
Yujie Dong ◽  
Yanhua Zheng ◽  
Tao Ma ◽  
Xiaoming Chen
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
High Temperature ◽  
Transfer Process ◽  
Heat Transfer Process ◽  
High Temperature Gas

Numerical simulation and parameters optimization on gas–solid heat transfer process of high temperature sinter

2011 ◽  
Vol 38 (7) ◽  
pp. 525-529 ◽  
Author(s):  
Z Wen ◽  
H-Z Shi ◽  
X Zhang ◽  
G-F Lou ◽  
X-L Liu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
High Temperature ◽  
Transfer Process ◽  
Heat Transfer Process ◽  
Parameters Optimization ◽  
Temperature Sinter ◽  
High Temperature Sinter

scholarly journals Numerical Simulation of the Heat Transfer Process Potato Subjected to high temperature with Finite Element Method

2021 ◽  
Vol 18 (116) ◽  
pp. 337-346
Author(s):  
zahra khodakaramifard ◽  
حسین زاده Hosseinzadeh ◽  
Alireza Shirazinejad ◽  
◽  
◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
High Temperature ◽  
Transfer Process ◽  
Heat Transfer Process ◽  
Element Method

Numerical Simulation for Microconvection Around Nano-Particle With Brownian Motion in Liquid

2003 ◽  
Author(s):  
B. X. Wang ◽  
H. Li ◽  
X. F. Peng ◽  
L. X. Yang
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Brownian Motion ◽  
Numerical Model ◽  
Temperature Gradient ◽  
Transfer Process ◽  
Heat Transfer Process ◽  
Nano Particles ◽  
Analytic Method ◽  
Nano Particle

The development of a numerical model for analyzing the effect of the nano-particles’ Brownian motion on the heat transfer is described. By using the Maxwell velocity distribution relations to calculate the most possible velocity of fluid molecules at certain temperature gradient location around the nano-particle, the interaction between fluid molecules and one single nano-particle is analyzed and calculated. Based on this, a syntonic system is proposed and the coupled effect that Brownian motion of nano-particles has on fluid molecules is simulated. This is used to formulate a reasonable analytic method, facilitating laboratory study. The results provide the essential features of the heat transfer process, contributed by micro-convection to be considered.

scholarly journals A Parametrical Study on Convective Heat Transfer between High-Temperature Gas and Regenerative Cooling Panel

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1784
Author(s):  
Jiangyu Hu ◽  
Ning Wang ◽  
Jin Zhou ◽  
Yu Pan
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
High Temperature ◽  
Thermal Protection ◽  
Flow Direction ◽  
Heated Surface ◽  
Heat Transfer Process ◽  
Cocurrent Flow ◽  
Regenerative Cooling ◽  
High Temperature Gas

Thermal protection is still one of the key challenges for successful scramjet operations. In this study, the three-dimensional coupled heat transfer between high-temperature gas and regenerative cooling panel with kerosene of supercritical pressure flowing in the cooling channels was numerically investigated to reveal the fundamental characteristics of regenerative cooling as well as its influencing factors. The SST k-ω turbulence model with low-Reynolds-number correction provided by the pressure-based solver of Fluent 19.2 is adopted for simulation. It was found that the heat flux of the gas heated surface is in the order of 106 W/m2, and it declines along the flow direction of gas due to the development of boundary layer. Compared with cocurrent flow, the temperature peak of the gas heated surface in counter flow is much higher. The temperature and heat flux of the gas heated surface both rises with the static pressure and total temperature of gas. The heat flux of the gas heated surface increases with the mass flow rate of kerosene, and it hardly changes with the pressure of kerosene. Results herein could help to understand the real heat transfer process of regenerative cooling and guide the design of thermal protection systems.

scholarly journals HEAT EXCHANGE IN A PLANE CHANNEL IN A TURBULENT FLOW REGIME IN THE CASE OF SMALL VALUES OF PRANDTL NUMBER ACCORDING TO DATA OF DIRECT NUMERICAL SIMULATION

2021 ◽  
Vol 56 ◽  
pp. 57-60
Author(s):  
Yurii G. Chesnokov ◽  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Prandtl Number ◽  
Direct Numerical Simulation ◽  
Transfer Process ◽  
Peclet Number ◽  
Plane Channel ◽  
Heat Transfer Process ◽  
Flat Channel ◽  
Péclet Number

Using the results obtained by the method of direct numerical simulation of the heat transfer process in a flat channel by various authors, it is shown that at small values of Prandtl number quite a few characteristics of the heat transfer process in a flat channel depend not on Reynolds and Prandtl numbers separately, but on Peclet number. Peclet number is calculated from the so-called dynamic speed

scholarly journals Numerical simulation of heat transfer process through insulated and non-insulated floor

2018 ◽  
Vol 15 (2) ◽  
pp. 155-160
Author(s):  
V. K. Averyanov ◽  
◽  
V. M. Ulyasheva ◽  
G. A. Ryabev ◽  
◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Transfer Process ◽  
Heat Transfer Process
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