A new radiation solution method for incorporation in general combustion prediction procedures

Lockwood, F.C.; Shah, Nilay

doi:10.1016/s0082-0784(81)80144-0

Cited by 350 publications

(216 citation statements)

References 2 publications

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“…The external radiation heat flux distribution is modelled using a variant of the discrete transfer method, [35], modified using staggered ray meshes, [36,37] to minimise the ray effect, [38]. Spectral emission from the fire is modelled using a statistical narrow band model, RADCAL, [39].…”

Section: Thermal Radiation Modellingmentioning

confidence: 99%

Modeling Lifted Methane Jet Fires Using the Boundary-Layer Equations

Cumber

Spearpoint

2006

Numerical Heat Transfer, Part B: Fundamentals

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The focus of this paper is turbulent lifted jet fires. The main objective is to present a lifted jet fire methodology using the boundary layer equations as a basis. The advantages of this are finite volume mesh independent predictions of the mean flow fields can be calculated on readily available computer resources which leads to rigorous model calibration. A number of lift-off models are evaluated. The model of choice is one based on the laminar flamelet quenching concept combined with a model for the large-scale strain rate.

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Section: Thermal Radiation Modellingmentioning

confidence: 99%

Modeling Lifted Methane Jet Fires Using the Boundary-Layer Equations

Cumber

Spearpoint

2006

Numerical Heat Transfer, Part B: Fundamentals

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“…Details can be found in the reviews and texts by Sarofim (1986), Viskanta and Mengüç (1987), Chan (1987), Howell (1988), Siegel and Howell (1992), Modest (1993), Carvalho and Farias (1998) and Maruyama and Guo (2000). We concentrate on the Monte Carlo method (Howell and Perlmutter, 1964), the discrete transfer method (Lockwood and Shah, 1981), discrete ordinate methods (Chandrasekhar, 1960, Hyde and Truelove, 1977, Fiveland, 1982, the YIX method (Tan and Howell, 1990and Hsu et al, 1992, 1993) and the Finite Volume method . Due to historical reasons various research groups within the combustion community have usually adopted one method and stayed with the selected technique for coupling radiation to the combustion calculation.…”

Section: Solution Methodsmentioning

confidence: 99%

“…In the Discrete Transfer Method (DTM), Lockwood and Shah, (1981), the solution proceeds by first discretising the radiation space into homogeneous surface and volume elements. Rays are emitted from the centre of each boundary subsurface, with position vector r , in directions determined by discretising the 2 hemispherical solid angle above the surface into n finite solid angles,   .…”

Section: The Discrete Transfer Methodsmentioning

confidence: 99%

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Calculation of Radiative Heat Transfer in Combustion Systems

Malalasekera¹,

Versteeg²,

Henson³

et al. 2002

Clean Air

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Most practical combustion systems involve complex geometry configurations and CFD techniques used for the calculation of flow and combustion in such geometries use body-fitted non-orthogonal mesh systems. This paper reviews some of the currently available radiative heat transfer calculation techniques suitable for such CFD applications. The Monte Carlo method, the discrete transfer method, the YIX method, the discrete ordinates method and the finite volume method are discussed and some notable applications related to combustion problems are reviewed. Comparative results using all the methods outlined are presented for bench mark problems and their applicability to complex geometry situations are discussed. Radiative heat flux predictions for an S.I. engine simulation are presented to demonstrate the capability of the discrete transfer method in a pent-roof complex geometry combustion chamber. The paper also describes a ray based technique for the handling of turbulence-radiation interactions in combustion and its application is demonstrated in the prediction of a methane diffusion flame.

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“…Then, the RTE has to be calculated in integral form, as is done when using the discrete transfer method, originated by Lockwood and Shah [27]. The modified exponential scheme by Chai et al [28] considers a uniform (zeroth-order) temperature profile, which results in a constant source term in the integrated RTE.…”

Section: Introductionmentioning

confidence: 99%

Solution of the Integrated Radiative Transfer Equation for Gray and Nongray Media

Cremers

Remie

Schreel

et al. 2006

Numerical Heat Transfer, Part A: Applications

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In this article a spectrally resolved solution of the integrated radiative transfer equation for the discrete transfer method with linear temperature interpolation is presented. Combined with the discrete ordinate method, the radiative heat fluxes are determined for use in the finite-volume energy equation. The spectral dependence of the absorption coefficient is approximated as a series of bands of constant value and scattering is neglected. The method is shown to be computationally efficient when applied to a course mesh typical for conduction problems and at the same time to be accurate for both optically thin and thick media, including semitransparent media.

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A new radiation solution method for incorporation in general combustion prediction procedures

Cited by 350 publications

References 2 publications

Modeling Lifted Methane Jet Fires Using the Boundary-Layer Equations

Modeling Lifted Methane Jet Fires Using the Boundary-Layer Equations

Calculation of Radiative Heat Transfer in Combustion Systems

Solution of the Integrated Radiative Transfer Equation for Gray and Nongray Media

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