Three-Dimensional Model of the Spectral Emissivity of Light- Scattering Exhaust Plumes

Суржиков, С. Т.

doi:10.1023/b:hite.0000046675.90866.a0

Cited by 16 publications

(6 citation statements)

References 6 publications

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“…(2) is solved instead of Eq. (7). This, in turn, provides that the number of RTE evaluations is N again.…”

Section: Treatment Of Overlapping Bandsmentioning

confidence: 98%

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Application of the Narrowband Correlated-k Method to Numerical Simulation of Nonscattering Exhaust Plume IR Emissions

Sventitskiy¹,

Mundt²

2012

48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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The narrowband correlated-k method is applied to numerical simulation of IR emissions from the exhaust plume of a typical turbofan engine. The Spectral Radiation Calculation Software module is coupled with the ray-tracing radiative transfer equation solver to provide the k-distribution data retrieval for each narrowband. In the simulations performed, a particular emphasis is placed on the investigation of accuracies of the quadrature and interpolation schemes which have the direct effect on computation results. The uncorrelated method for the treatment of overlapping bands is evaluated by comparison with the basic correlated-k model applied to a mixture of radiating species. Qualitative comparisons of the spectra obtained using the correlated-k model with those given by a statistical narrowband model are provided. Nomenclatureg = cumulative distribution function I λ = spectral intensity, W/(m 2 sr µm) I λ = mean spectral intensity, W/(m 2 sr µm) g I = reordered spectral intensity, W/(m 2 sr µm) b I λ = Planck blackbody function, W/(m 2 sr µm) k λ = spectral absorption coefficient, cm -1 g k = reordered spectral absorption coefficient, cm -1 M = number of nodes used for line-of-sight discretizing N = number of quadrature points p = total pressure, atm s = geometric path coordinate, cm T = temperature, K x = mole fraction Greek symbols λ ∆ = wavelength range, µm λ = wavelength, µm τ = spectral transmissivity Ω = direction of radiation propagation ω = quadrature weight, wavenumber, cm -1

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“…(2) is solved instead of Eq. (7). This, in turn, provides that the number of RTE evaluations is N again.…”

Section: Treatment Of Overlapping Bandsmentioning

confidence: 98%

“…24 This model is also applied in this work along with the basic CK model, Eqs. (6) and (7). A comparison between numbers of RTE evaluations required by various CK-based methods, LBL method, and SNB model is shown in Table 1 (see also Ref.…”

Section: Treatment Of Overlapping Bandsmentioning

confidence: 99%

Application of the Narrowband Correlated-k Method to Numerical Simulation of Nonscattering Exhaust Plume IR Emissions

Sventitskiy¹,

Mundt²

2012

48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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“…Information on this topic can be found in monographs (Dombrovsky 1996; as well as in (Duval et al, 2004;Ponti et al, 2021;Hao et al, 2022). The effect of micron-sized alumina particles in combustion products of solid propellants on radiation of rocket plumes was studied in (Surzhikov 2004;Shuai et al, 2005;Binauld et al, 2019).…”

Section: Thermal Radiation In Combustion Systems and Fire Safetymentioning

confidence: 99%

Specialty Grand Challenge for Heat Transfer and Thermal Power

Dombrovsky

2022

Front. Therm. Eng.

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“…The choice of the model problems is motivated by engineering applications concerned with both near-field thermal effects and remote sensing of thermal radiation of twophase jets containing highly scattering micrometer-size particles of alumina (Laredo and Netzer, 1993;Surzhikov, 2004). In contrast to the real jets, the model problems assume uniform radiative properties.…”

Section: Numerical Solution To Multidimensional Problemsmentioning

confidence: 99%

The Use of Transport Approximation and Diffusion-Based Models in Radiative Transfer Calculations

Dombrovsky

2012

Comput Thermal Scien

138

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The paper presents a discussion of the use of both transport approximation for scattering phase function and diffusionbased models for radiative transfer in absorbing and anisotropically scattering media like many disperse systems in nature and engineering. The main attention is paid to heat transfer problems and traditional methods of identification of spectral radiative properties of dispersed materials when the details of angular distribution of the radiation intensity are not so important. The latter makes reasonable use of the above-mentioned approximations. In more complex applied problems, the diffusion approximation appears to be a good approach as the first step of a combined two-step solution. Some example problems solved recently by the author and his colleagues are used to illustrate the approach considered in the paper.

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Three-Dimensional Model of the Spectral Emissivity of Light- Scattering Exhaust Plumes

Cited by 16 publications

References 6 publications

Application of the Narrowband Correlated-k Method to Numerical Simulation of Nonscattering Exhaust Plume IR Emissions

Application of the Narrowband Correlated-k Method to Numerical Simulation of Nonscattering Exhaust Plume IR Emissions

Specialty Grand Challenge for Heat Transfer and Thermal Power

The Use of Transport Approximation and Diffusion-Based Models in Radiative Transfer Calculations

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