### Выдержка

Unsteady regimes of convective-radiative heat transfer in a cubic enclosure with finitely thick heat-conducting walls in the presence of a constant-temperature energy source have been modeled mathematically under the conditions of convective heat exchange with the environment. A mathematical model has been formulated in dimensionless variables "vector potential-vorticity vector-temperature;" the model was realized numerically by the finite-difference method. An analysis of radiative heat transfer has been made on the basis of the surface-radiation approximation with the balance method in Polyak's version. Three-dimensional temperature and velocity fields and dependences for the average Nusselt number have been obtained; they reflect the influence of the reduced emissivity factor of interior surfaces of enclosing walls, of the relative thermal conductivity, of the unsteadiness factor on the flow regimes and heat transfer.

Язык оригинала | Английский |
---|---|

Страницы (с-по) | 124-134 |

Число страниц | 11 |

Журнал | Journal of Engineering Physics and Thermophysics |

Том | 87 |

Номер выпуска | 1 |

DOI | |

Состояние | Опубликовано - 1 янв 2014 |

### Отпечаток

### ASJC Scopus subject areas

- Condensed Matter Physics
- Engineering(all)

### Цитировать

*Journal of Engineering Physics and Thermophysics*,

*87*(1), 124-134. https://doi.org/10.1007/s10891-014-0992-6

**Numerical analysis of spatial unsteady regimes of conjugate convective-radiative heat transfer in a closed volume with an energy source.** / Martyushev, S. G.; Miroshnichenko, I. V.; Sheremet, M. A.

Результат исследований: Материалы для журнала › Статья

*Journal of Engineering Physics and Thermophysics*, том. 87, № 1, стр. 124-134. https://doi.org/10.1007/s10891-014-0992-6

}

TY - JOUR

T1 - Numerical analysis of spatial unsteady regimes of conjugate convective-radiative heat transfer in a closed volume with an energy source

AU - Martyushev, S. G.

AU - Miroshnichenko, I. V.

AU - Sheremet, M. A.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Unsteady regimes of convective-radiative heat transfer in a cubic enclosure with finitely thick heat-conducting walls in the presence of a constant-temperature energy source have been modeled mathematically under the conditions of convective heat exchange with the environment. A mathematical model has been formulated in dimensionless variables "vector potential-vorticity vector-temperature;" the model was realized numerically by the finite-difference method. An analysis of radiative heat transfer has been made on the basis of the surface-radiation approximation with the balance method in Polyak's version. Three-dimensional temperature and velocity fields and dependences for the average Nusselt number have been obtained; they reflect the influence of the reduced emissivity factor of interior surfaces of enclosing walls, of the relative thermal conductivity, of the unsteadiness factor on the flow regimes and heat transfer.

AB - Unsteady regimes of convective-radiative heat transfer in a cubic enclosure with finitely thick heat-conducting walls in the presence of a constant-temperature energy source have been modeled mathematically under the conditions of convective heat exchange with the environment. A mathematical model has been formulated in dimensionless variables "vector potential-vorticity vector-temperature;" the model was realized numerically by the finite-difference method. An analysis of radiative heat transfer has been made on the basis of the surface-radiation approximation with the balance method in Polyak's version. Three-dimensional temperature and velocity fields and dependences for the average Nusselt number have been obtained; they reflect the influence of the reduced emissivity factor of interior surfaces of enclosing walls, of the relative thermal conductivity, of the unsteadiness factor on the flow regimes and heat transfer.

KW - closed volume

KW - conjugate heat transfer

KW - finite-difference method

KW - surface radiation

KW - vector potential

UR - http://www.scopus.com/inward/record.url?scp=84896490323&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896490323&partnerID=8YFLogxK

U2 - 10.1007/s10891-014-0992-6

DO - 10.1007/s10891-014-0992-6

M3 - Article

AN - SCOPUS:84896490323

VL - 87

SP - 124

EP - 134

JO - Journal of Engineering Physics and Thermophysics

JF - Journal of Engineering Physics and Thermophysics

SN - 1062-0125

IS - 1

ER -