Numerical analysis of thermogravitational turbulent convection in a closed rectangular region with radiation source of energy
The mathematical modeling of the conjugate heat transfer in a closed rectangular region has been carried out under the conditions of the radiation supply of energy. The temperature and stream function fields obtained by the modeling illustrate a substantially unsteady nature of the conjugate heat ex...
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| Veröffentlicht in: | Thermophysics and aeromechanics 2016-05, Vol.23 (3), p.393-401 |
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| container_title | Thermophysics and aeromechanics |
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| creator | Kuznetsov, G. V. Nee, A. E. |
| description | The mathematical modeling of the conjugate heat transfer in a closed rectangular region has been carried out under the conditions of the radiation supply of energy. The temperature and stream function fields obtained by the modeling illustrate a substantially unsteady nature of the conjugate heat exchange process under study. An analysis of temperature distributions in typical cross sections of the solution domain has shown a considerable inhomogeneity of the temperature field. It is found that an increase in the Rayleigh number leads to substantial modifications of the temperature and stream function fields. The influence of the distribution of radiation fluxes over the internal interfaces on the temperature fields and the airflow character is shown. The influence of the turbulization on the heat transfer intensity near the interfaces between media has been estimated. Comparisons of the obtained numerical results with experimental data have shown their good agreement. |
| doi_str_mv | 10.1134/S0869864316030094 |
| format | Article |
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The influence of the distribution of radiation fluxes over the internal interfaces on the temperature fields and the airflow character is shown. The influence of the turbulization on the heat transfer intensity near the interfaces between media has been estimated. Comparisons of the obtained numerical results with experimental data have shown their good agreement.</description><subject>Aerodynamics</subject><subject>Air flow</subject><subject>Conjugates</subject><subject>Convection</subject><subject>Fluxes</subject><subject>Heat</subject><subject>Heat exchange</subject><subject>Heat transfer</subject><subject>Inhomogeneity</subject><subject>Mathematical models</subject><subject>Numerical analysis</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Temperature distribution</subject><subject>Thermodynamics</subject><issn>0869-8643</issn><issn>1531-8699</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp1UEtLAzEQDqJg0f4AbwHPq3ntNj1K8QVFD-p5SSbZbcp2U5NspQf_u1nrQRDnkuF7TWYQuqDkilIurl-IrOayEpxWhBMyF0doQktOiwzPj9FkpIuRP0XTGNckF6eCcTJBn0_DxgYHqsOqV90-uoh9g9PKho1vg9q5pJLzmcJpCHrobJ8w-H5nYYSx67HC0PloDQ4ZU307dCrkvh3pD5dWOCjjvkNw9EMAOw6wvQ3t_hydNKqLdvrznqG3u9vXxUOxfL5_XNwsC8grpUJZripCS2CghDGNrhhobUE2GkQzk5oaI7hirNSUUSNnRDMwoOdaVloa4Gfo8pC7Df59sDHV6_yTvFSsqZREzkrBZVbRgwqCjzHYpt4Gt1FhX1NSj4eu_xw6e9jBE7O2b234lfyv6QsMx4PX</recordid><startdate>20160501</startdate><enddate>20160501</enddate><creator>Kuznetsov, G. 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The temperature and stream function fields obtained by the modeling illustrate a substantially unsteady nature of the conjugate heat exchange process under study. An analysis of temperature distributions in typical cross sections of the solution domain has shown a considerable inhomogeneity of the temperature field. It is found that an increase in the Rayleigh number leads to substantial modifications of the temperature and stream function fields. The influence of the distribution of radiation fluxes over the internal interfaces on the temperature fields and the airflow character is shown. The influence of the turbulization on the heat transfer intensity near the interfaces between media has been estimated. Comparisons of the obtained numerical results with experimental data have shown their good agreement.</abstract><cop>Novosibirsk</cop><pub>Kutateladze Institute of Thermophysics SB RAS</pub><doi>10.1134/S0869864316030094</doi><tpages>9</tpages></addata></record> |
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| subjects | Aerodynamics Air flow Conjugates Convection Fluxes Heat Heat exchange Heat transfer Inhomogeneity Mathematical models Numerical analysis Physics Physics and Astronomy Temperature distribution Thermodynamics |
| title | Numerical analysis of thermogravitational turbulent convection in a closed rectangular region with radiation source of energy |
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