scholarly journals A Study on the Reduction of Computing Time of the Monte Carlo Method Applied to the Radiative Heat Transfer

1986 ◽  
Vol 29 (255) ◽  
pp. 3000-3006 ◽  
Author(s):  
Masayoshi KOBIYAMA
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Computing Time ◽  
The Monte Carlo Method

The Monte Carlo Method in Radiative Heat Transfer

1998 ◽  
Vol 120 (3) ◽  
pp. 547-560 ◽  
Author(s):  
J. R. Howell
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Hybrid Methods ◽  
Participating Media ◽  
Practical Applications ◽  
Monte Carlo Techniques ◽  
The Monte Carlo Method

The use of the Monte Carlo method in radiative heat transfer is reviewed. The review covers surface-surface, enclosure, and participating media problems. Discussion is included of research on the fundamentals of the method and on applications to surface-surface interchange in enclosures, exchange between surfaces with roughness characteristics, determination of configuration factors, inverse design, transfer through packed beds and fiber layers, participating media, scattering, hybrid methods, spectrally dependent problems including media with line structure, effects of using parallel algorithms, practical applications, and extensions of the method. Conclusions are presented on needed future work and the place of Monte Carlo techniques in radiative heat transfer computations.

Numerical Radiation Exchange in Rectangular Micro- and Mini-Channels Using the Monte Carlo Method

2015 ◽  
Author(s):  
Thomas R. Amundson ◽  
Rebecca N. Webb
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Aspect Ratio ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Incidence Angle ◽  
Incident Angle ◽  
The Monte Carlo Method ◽  
Mini Channels

The addition of appropriately shaped macroscale structures to a surface results in a directionally selective surface capable of high absorption of direct solar radiation and low hemispherical emission. This work investigates the effect of adding sub-macroscale structures to a smooth surface on net radiative heat transfer. The Monte Carlo method was used to characterize the net radiative heat transfer of rectangular micro- and mini-channels. The effects of varying the aspect ratio, surface absorptivity, and incident angle were determined. The effect of diffuse and specular reflections was also examined. For a diffuse surface, as the absorptivity increases so does the net heat transfer however, higher incident angles result in lower net heat transfer. For a specular surface, net heat transfer increases with both incidence angle and aspect ratio. In general, deeper channels increase net heat transfer. The effect of channel periodicity was also examined. In general, shorter periods increase net heat transfer when normalized by system length.

scholarly journals Radiative Heat Transfer in Participating Medium and Dynamic Region Monte Carlo Method by Region Adaption

2015 ◽  
Vol 2015 ◽  
pp. 1-12
Author(s):  
Qing Ai ◽  
Hua Liu ◽  
Xinlin Xia ◽  
Chuang Sun ◽  
Ming Xie
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Computing Time ◽  
Solution Procedure ◽  
Gray Medium ◽  
And Storage ◽  
Thick Medium

A dynamic region Monte Carlo method (DRMC) is proposed to simulate radiative heat transfer in participating medium. The basic principle and solution procedure of this method is described; radiative heat transfer in a two-dimensional rectangular region of absorbing, emitting, and/or scattering gray medium is analyzed. A comparison between DRMC and the traditional Monte Carlo method (TMC) is investigated by analyzing the simulated temperature distribution, the computing time, and the number of the sampling bundles. The investigation results show that, to compare with TMC, the DRMC can obviously reduce the computing time and storage capacity under the same solution precision for radiative transfer in optically thick medium; the DRMC allows bypassing the difficulties encountered by TMC in the limit of optically thick extinction.

Sign in / Sign up

Export Citation Format

Share Document