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Keywords: radiative transfer
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2013, 135(6): 061801.
Paper No: HT-12-1582
Published Online: May 16, 2013
... ]. In this section we will first consider the simple case of a homogeneous medium, i.e., a medium with uniform temperature, pressure, and mixture mole fraction throughout. Such a mixture has an absorption coefficient that, while varying across the spectrum, is spatially constant. The radiative transfer equation...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2012, 134(4): 041203.
Published Online: February 15, 2012
... equations, associated to radiative transfer equation, and a global kinetics model. The governing equations are discretized using finite volume method and the resulting algebraic equations are solved by THOMAS algorithm. The linkage between the pressure and velocity fields is assumed by SIMPLE algorithm...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031012.
Published Online: January 13, 2012
... the Beer’s laws, extinction, absorption, and scattering coefficients are identified from these statistical functions; a classical radiative transfer equation (RTE) can then be used. In all other cases, a generalized radiative transfer equation (GRTE) is directly expressed from the radiative statistical...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031001.
Published Online: January 9, 2012
... will concentrate on two methods. One is based on the solution of the time-averaged form of the radiative transfer equation using the optically thin fluctuation approximation and a combustion model based on a prescribed probability density function (pdf) approach. The second one is based on the photon Monte Carlo...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2012, 134(2): 022701.
Published Online: December 9, 2011
... of the high oxygen concentration flames included contributions from soot radiation. 20 05 2009 22 08 2011 09 12 2011 09 12 2011 chemically reactive flow combustion combustion equipment diffusion flames heat transfer laminar flow organic compounds pipe flow radiative...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2011, 133(12): 122701.
Published Online: October 7, 2011
... through look-up and interpolation, providing an efficient means to perform radiative transfer calculations. A detailed methodology of the k -distribution data generation is presented. An optimized Gauss quadrature scheme is implemented for reducing the size of the database. The accuracy of the database...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 102701.
Published Online: August 23, 2011
... in prediction of radiative transfer in nonisothermal and nonhomogeneous gas mixtures with nongray soot. The absorption spectrum of the gas mixture and soot particles is treated as a spectrum of a single effective gas, reducing the problem to the simplest case of the SLW model with a single gray gas and a clear...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 082701.
Published Online: May 2, 2011
... radiative transfer absorbing-emitting-scattering medium eigenfunction eigenvalue heat flow scattering integral The integrodifferential radiation transfer equation (RTE) is recognized to be the most general and rigorous mathematical model to calculate macroscopic radiative fluxes. However...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2011, 133(6): 062701.
Published Online: March 10, 2011
... of the Filtered Radiative Transfer Equation in Large Eddy Simulations of Turbulent Reactive Flows ,” Combust. Flame 0010-2180 , 156 ( 5 ), pp. 1099 – 1110 . 10.1016/j.combustflame.2008.10.006 Joseph , D. , 2004 , “ Modélisation des transferts radiatifs en combustion par méthode aux ordonnées...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. April 2011, 133(4): 044502.
Published Online: January 10, 2011
... directional resolution is necessary in some applications, for example, radiative image processing in industrial boilers ( 14 ), inverse radiative transfer problems, etc. Therefore, the intensities calculated by IDOM are investigated. Case 2b is chosen to test the directional intensity. The coordinate...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2011, 133(4): 042701.
Published Online: January 10, 2011
...V. P. Solovjov; B. W. Webb The exact form of the spectral line weighted-sum-of-gray-gases (SLW) model is developed as a limiting case of the classical SLW method when the number of gray gases in the classical model approaches infinity. Solutions of the exact SLW radiative transfer equation...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2010, 132(12): 122701.
Published Online: September 21, 2010
...Xin-Lin Xia; Dong-Hui Li; Feng-Xian Sun Radiative transfer in absorbing, emitting, and highly anisotropically scattering media is widely encountered in high temperature applications such as pulverized coal firing furnaces and high temperature thermal protection materials. Efficient and effective...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2010, 132(11): 112701.
Published Online: August 13, 2010
... (the other three boundaries are black) and is isotropically scattering. The transient differential energy equation is discretized by the fully implicit finite difference method, and the radiative source term of the energy equation is expressed by the radiative transfer coefficients (RTCs). The integrality...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2010, 132(10): 101301.
Published Online: July 27, 2010
...T. J. Bright; Z. M. Zhang One of the approaches for micro/nanoscale heat transfer in semiconductors and dielectric materials is to use the Boltzmann transport equation, which reduces to the equation of phonon radiative transfer under the relaxation time approximation. Transfer and generation...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2010, 132(7): 072703.
Published Online: May 5, 2010
... conductivities are given in Table 2 . Good agreement is observed between the experimental and predicted apparent thermal conductivities. At room temperature. radiative transfer is not preponderant and the full and reduced models are appropriate to calculate the apparent thermal conductivities. 29 08...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. July 2010, 132(7): 074503.
Published Online: May 5, 2010
... 05 2010 convection flow through porous media radiative transfer cellular porous medium radiative heat transfer temperature-dependent conductivity onset of convection Horton–Rogers–Lapwood problem Radiative transfer in cellular porous materials has been recently reviewed...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2010, 132(7): 072702.
Published Online: April 28, 2010
... considerable longer, although the setup time to describe a new geometry is very short and essentially independent of system complexity. 31 05 2009 26 11 2009 28 04 2010 28 04 2010 furnaces heat radiation integration Monte Carlo methods radiative transfer ray tracing...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. June 2010, 132(6): 064503.
Published Online: April 1, 2010
... , Physical and Computational Aspects of Convective Heat Transfer , Springer , New York . 10 11 2008 06 12 2009 01 04 2010 01 04 2010 external flows flow through porous media heat radiation magnetohydrodynamics natural convection radiative transfer viscosity MHD...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2010, 132(6): 061201.
Published Online: March 25, 2010
...-driven reactor ( 23 ). The fluid phase is assumed to be radiatively non-participating. Hence, the variation in the radiative intensity in continuum models is described by a single equation of radiative transfer (RTE) ( 29 30 ). 7 d I λ ( s , s ̂ ) d s + β λ I λ...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2010, 132(2): 023308.
Published Online: December 9, 2009
... 01 12 2008 26 02 2009 09 12 2009 09 12 2009 aggregates (materials) flames fractals heat radiation Mie scattering radiative transfer soot fractal aggregates soot optical properties configuration averaging The absorption and scattering properties...