A 3-D radiation model for non-grey gases

Selçuk, Nevín; Döner, Nimeti

doi:10.1016/j.jqsrt.2008.09.016

Cited by 13 publications

(6 citation statements)

References 17 publications

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“…Predictive accuracy of ANSYS FLUENT with SLW was tested by applying it to three benchmark problems, two containing isothermal homogenous/nonhomogenous water vapor and one isothermal water vapor/carbon dioxide mixture. To make use of tabulated data from MOL of DOM with SLW developed by Selçuk and Doner [35], ANSYS FLUENT with SLW results were compared with those data in all the test cases. When benchmarking ANSYS FLUENT with SLW, results of RT with SNB [36] were also used in the first two test cases.…”

Section: Resultsmentioning

confidence: 99%

SLW model for computational fluid dynamics modeling of combustion systems: Implementation and validation

Ozen

Selçuk

2016

Numerical Heat Transfer, Part B: Fundamentals

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Spectral Line-Based Weighted Sum of Gray Gases (SLW) model was implemented to Computational Fluid Dynamics (CFD) Solver, ANSYS FLUENT. Discrete Ordinate Method (DOM) available in ANSYS FLUENT was used as Radiative Transfer Equation (RTE) Solver. ANSYS FLUENT with SLW was applied to the prediction of incident heat fluxes for three test problems; two containing isothermal homogenous/nonhomogenous water vapor and one isothermal water vapor/carbon dioxide mixture. Predictive accuracy of SLW in ANSYS FLUENT was assessed by benchmarking its predictions against those of ray tracing (RT) with Statistical Narrow-Band (SNB) and Method of Lines (MOL) solutions of DOM with SLW. Comparisons reveal that the results of CFD code are in good agreement with the benchmark solutions. This finding proves that the use of DOM with SLW in CFD codes would provide more accurate solutions in studies involving gas combustion, where accuracy in spectral radiative properties plays dominant role in heat flux predictions. ARTICLE HISTORY

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Section: Resultsmentioning

confidence: 99%

SLW model for computational fluid dynamics modeling of combustion systems: Implementation and validation

Ozen

Selçuk

2016

Numerical Heat Transfer, Part B: Fundamentals

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“…Certainly, there are also many other methods which are available for the present physical problem. For example, in very recent, the efforts to enhance the stabilities and to fast the speeds of the solutions of DOM equations [27][28][29] were made. However, according to the authors' knowledge, there are not any direct solution algorithms for DOM equations.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Schur-decomposition for 3D matrix equations and its application in solving radiative discrete ordinates equations discretized by Chebyshev collocation spectral method

Tian

Sun

et al. 2010

Journal of Computational Physics

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“…Predictive accuracy of our radiative model was also successfully compared against references [35][36][37]. The geometrical configuration is a rectangular enclosure of size 2 m � 2 m � 4 m, with black walls at 300 K and containing a H 2 O-N 2 gas mixture.…”

Section: Radiation Model Validationmentioning

confidence: 99%

Interaction of radiation with double-diffusive natural convection in a three-dimensional cubic cavity filled with a non-gray gas mixture in cooperating cases

Cherifi

Laouar-Meftah

Benbrik

et al. 2015

Numerical Heat Transfer, Part A: Applications

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A three-dimensional (3D) numerical study has been performed to investigate the effects of non-gray gas radiation on double-diffusive natural convection in a cubic enclosure filled with either air-H 2 O or air-CO 2 mixtures in cooperating situations. Gas radiation was taken into account by the discrete ordinates method (DOM) associated with the spectral line weighted-sum-ofgray-gases (SLW) spectral model. Results obtained for two average concentrations of H 2 O and CO 2 (10% and 20%) show that radiation modifies the temperature and concentration structures by creating oblique stratifications. The heat transfer rate is decreased, whereas mass transfer is not much modified. In addition, a comparison between 2D and 3D results is presented. ARTICLE HISTORY

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A 3-D radiation model for non-grey gases

Cited by 13 publications

References 17 publications

SLW model for computational fluid dynamics modeling of combustion systems: Implementation and validation

SLW model for computational fluid dynamics modeling of combustion systems: Implementation and validation

Schur-decomposition for 3D matrix equations and its application in solving radiative discrete ordinates equations discretized by Chebyshev collocation spectral method

Interaction of radiation with double-diffusive natural convection in a three-dimensional cubic cavity filled with a non-gray gas mixture in cooperating cases

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