### Abstract

This study considers nongray, absorbing, emitting, anisotropically scattering, one-dimensional, radiative transfer in cylindrical media. The radiation transfer is due to a gas composed of either CO_{2} or H_{2}O, soot and particles. The temperature of these constituents is equal and uniform throughout the medium. The nongray effects are due to the spectrally discontinuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the soot. The absorption coefficient of the nongray gas is modelled according to Edwards’ exponential wide-band models. The absorption coefficient of the soot is inversely proportional to wavelength. The scattering phase function of the gray particles is represented as the sum of an isotropic component and a delta-function. An accurate solution to this problem is obtained by using the P_{1}-approximation, coupled with the integral form of the equation of transfer. The band widths are determined by utilizing the wide-band models, and the spectral integration is performed over all wavelengths according to a two-point quadrature for each band. Comprehensive parameter surveys are performed in order to establish a detailed understanding of the complex interaction between radiatively participating particles and molecular gases.

Original language | English (US) |
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Title of host publication | AIAA 24th Thermophysics Conference, 1989 |

Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |

State | Published - 1989 |

Event | AIAA 24th Thermophysics Conference, 1989 - Buffalo, United States Duration: Jun 12 1989 → Jun 14 1989 |

### Other

Other | AIAA 24th Thermophysics Conference, 1989 |
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Country | United States |

City | Buffalo |

Period | 6/12/89 → 6/14/89 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Mechanical Engineering
- Aerospace Engineering

### Cite this

_{2}or H

_{2}O and particles on radiation in a one-dimensional cylinder. In

*AIAA 24th Thermophysics Conference, 1989*[AIAA 89-1718] American Institute of Aeronautics and Astronautics Inc, AIAA.

}

_{2}or H

_{2}O and particles on radiation in a one-dimensional cylinder. in

*AIAA 24th Thermophysics Conference, 1989.*, AIAA 89-1718, American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA 24th Thermophysics Conference, 1989, Buffalo, United States, 6/12/89.

**Effects of either CO _{2} or H_{2}O and particles on radiation in a one-dimensional cylinder.** / Thynell, Stefan.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Effects of either CO2 or H2O and particles on radiation in a one-dimensional cylinder

AU - Thynell, Stefan

PY - 1989

Y1 - 1989

N2 - This study considers nongray, absorbing, emitting, anisotropically scattering, one-dimensional, radiative transfer in cylindrical media. The radiation transfer is due to a gas composed of either CO2 or H2O, soot and particles. The temperature of these constituents is equal and uniform throughout the medium. The nongray effects are due to the spectrally discontinuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the soot. The absorption coefficient of the nongray gas is modelled according to Edwards’ exponential wide-band models. The absorption coefficient of the soot is inversely proportional to wavelength. The scattering phase function of the gray particles is represented as the sum of an isotropic component and a delta-function. An accurate solution to this problem is obtained by using the P1-approximation, coupled with the integral form of the equation of transfer. The band widths are determined by utilizing the wide-band models, and the spectral integration is performed over all wavelengths according to a two-point quadrature for each band. Comprehensive parameter surveys are performed in order to establish a detailed understanding of the complex interaction between radiatively participating particles and molecular gases.

AB - This study considers nongray, absorbing, emitting, anisotropically scattering, one-dimensional, radiative transfer in cylindrical media. The radiation transfer is due to a gas composed of either CO2 or H2O, soot and particles. The temperature of these constituents is equal and uniform throughout the medium. The nongray effects are due to the spectrally discontinuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the gas and the spectrally continuous absorption/emission behavior of the soot. The absorption coefficient of the nongray gas is modelled according to Edwards’ exponential wide-band models. The absorption coefficient of the soot is inversely proportional to wavelength. The scattering phase function of the gray particles is represented as the sum of an isotropic component and a delta-function. An accurate solution to this problem is obtained by using the P1-approximation, coupled with the integral form of the equation of transfer. The band widths are determined by utilizing the wide-band models, and the spectral integration is performed over all wavelengths according to a two-point quadrature for each band. Comprehensive parameter surveys are performed in order to establish a detailed understanding of the complex interaction between radiatively participating particles and molecular gases.

UR - http://www.scopus.com/inward/record.url?scp=85002985828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85002985828&partnerID=8YFLogxK

M3 - Conference contribution

BT - AIAA 24th Thermophysics Conference, 1989

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

ER -

_{2}or H

_{2}O and particles on radiation in a one-dimensional cylinder. In AIAA 24th Thermophysics Conference, 1989. American Institute of Aeronautics and Astronautics Inc, AIAA. 1989. AIAA 89-1718