Study on the merged flame height and radiative heat flux distribution from square propane fire arrays

2021 ◽  
Author(s):  
Longxing Yu ◽  
Huaxian Wan ◽  
Jie Ji
Keyword(s):  
Heat Flux ◽  
Flux Distribution ◽  
Radiative Heat ◽  
Radiative Heat Flux ◽  
Flame Height ◽  
Heat Flux Distribution

scholarly journals SIMULATION OF RADIATIVE HEAT FLUX DISTRIBUTION UNDER AN INFRARED HEAT EMITTER

2015 ◽  
Vol 55 (1) ◽  
pp. 22-28
Author(s):  
Jan Loufek ◽  
Jiřina Královcová
Keyword(s):  
Heat Flux ◽  
Flux Distribution ◽  
Radiative Heat ◽  
Measured Data ◽  
Heat Radiation ◽  
Heat Flux Distribution ◽  
Single Object ◽  
Radiation Model ◽  
Heated Body ◽  
Infrared Heater

<p>The article deals with a heat radiation model used for heat flux calculation of an infrared heater. In general, we consider a system consisting of a set of objects, whereas a single object could stand for a heater, a reflector or a heated body. Each of the objects is defined by its bounding surface. The presented model applies a 2D restriction of the real system. The aim of a particular simulation is to obtain a heat flux distribution all over the heated body under given conditions such as objects temperature and material properties. Furthermore, the implemented model is used to design a reflector profile to obtain a desired heat flux distribution. The paper presents the implemented model, a comparison of simulated and measured data and an example of reflector design.</p>

scholarly journals REDUCED-SCALE STUDY OF LIQUID FUEL STORAGE TANK FIRE USING FIRE DYNAMICS SIMULATOR

2015 ◽  
Vol 14 (1) ◽  
pp. 40
Author(s):  
F. R. Centeno ◽  
E. E. C. Rodrigues
Keyword(s):  
Heat Flux ◽  
Liquid Fuel ◽  
Radiative Heat ◽  
Radiative Heat Flux ◽  
Flame Height ◽  
Temperature Profiles ◽  
Fire Dynamics ◽  
Fuel Storage ◽  
Real Scale ◽  
Reduced Scale

Most of the accidents that occur in liquid fuel storage tank parks are caused by fire. This paper presents a numerical study using Large Eddy Simulation through Fire Dynamics Simulator (FDS) for the simulation of liquid fuel (ethanol) storage tanks at different scales (real-scale 1:1, and reduced- scales, 1:2, 1:4, 1:8). This paper proposes correlations for flame height, and temperature profile and radiative heat flux profile in the region adjacent to the tanks. Correlations have as inputs the diameters of the tanks in real- and reduced-scale, temperature profiles and radiative heat flux profiles for a reduced-scale tank simulation, and then provide as outputs flame height and temperature profiles and radiative heat flux profiles for the tank in real- scale. Percentage errors of the correlations found in this study are lower than 2.0% and 0.6% for the maximum radiative heat flux and maximum temperature, respectively.

Nonequilibrium radiative heat flux modeling for the Huygens entry probe

2006 ◽  
Vol 111 (E7) ◽  
Author(s):  
T. E. Magin ◽  
L. Caillault ◽  
A. Bourdon ◽  
C. O. Laux
Keyword(s):  
Heat Flux ◽  
Radiative Heat ◽  
Radiative Heat Flux ◽  
Entry Probe

Handling of Collimated Irradiation on a Plane-Parallel Participating Medium

2000 ◽  
Author(s):  
Christian Proulx ◽  
Daniel R. Rousse ◽  
Rodolphe Vaillon ◽  
Jean-François Sacadura
Keyword(s):  
Heat Flux ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiative Heat ◽  
Radiative Heat Flux ◽  
Scattering Media ◽  
One Dimensional ◽  
Plane Parallel ◽  
Collimated Beam ◽  
Good Agreement

Abstract This article presents selected results of a study comparing two procedures for the treatment of collimated irradiation impinging on one boundary of a participating one-dimensional plane-parallel medium. These procedures are implemented in a CVFEM used to calculate the radiative heat flux and source. Both isotropically and anisotropically scattering media are considered. The results presented show that both procedures provide results in good agreement with those obtained using a Monte Carlo method, when the collimated beam impinges normally.

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