Thermal and flow analysis in a room with a radiant ceiling panel; Journal of Thermal Analysis and Calorimetry; Vol. 147
| Parent link: | Journal of Thermal Analysis and Calorimetry Vol. 147.— 2021.— [11140-3, 14 p.] |
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| Autor corporatiu: | |
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| Sumari: | Title screen In this paper, a hybrid computational fluid dynamics technique is proposed to study turbulent flow and conjugate heat transfer patterns. A typical shaped room with a radiant heating panel is considered. The mesoscopic lattice Boltzmann method coupled with the finite difference solution of macroscopic energy equation is used to compute the thermal and flow fields. To describe the radiant flux distribution along the solid-fluid interfaces, the Lambert law is implemented. An in-house code written in MatLab is validated against direct numerical simulation data obtained for a Rayleigh number up to 1011. A computational study is conducted when varying the Rayleigh number, heat flux density, radiant panel length, physical properties of the enclosure and external heat transfer coefficients with constant walls thickness and the ambient temperature. It is found that the air temperature is decreased in the room as the Rayleigh number is raised. The panel length is found to drastically affect the thermal field. However, the flow structure is altered insignificantly. The stagnant zone of air is formed at the bottom corners with low values of heat fluxes. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2021
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1007/s10973-021-11140-3 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667922 |
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| 200 | 1 | |a Thermal and flow analysis in a room with a radiant ceiling panel |f A. E. Nee, A. J. Chamkha | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 41 tit.] | ||
| 330 | |a In this paper, a hybrid computational fluid dynamics technique is proposed to study turbulent flow and conjugate heat transfer patterns. A typical shaped room with a radiant heating panel is considered. The mesoscopic lattice Boltzmann method coupled with the finite difference solution of macroscopic energy equation is used to compute the thermal and flow fields. To describe the radiant flux distribution along the solid-fluid interfaces, the Lambert law is implemented. An in-house code written in MatLab is validated against direct numerical simulation data obtained for a Rayleigh number up to 1011. A computational study is conducted when varying the Rayleigh number, heat flux density, radiant panel length, physical properties of the enclosure and external heat transfer coefficients with constant walls thickness and the ambient temperature. It is found that the air temperature is decreased in the room as the Rayleigh number is raised. The panel length is found to drastically affect the thermal field. However, the flow structure is altered insignificantly. The stagnant zone of air is formed at the bottom corners with low values of heat fluxes. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 1 | |t Journal of Thermal Analysis and Calorimetry | |
| 463 | 1 | |t Vol. 147 |v [11140-3, 14 p.] |d 2021 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a radiant ceiling panel | |
| 610 | 1 | |a hybrid lattice Boltzmann | |
| 610 | 1 | |a two-relaxation time | |
| 610 | 1 | |a direct numerical simulation | |
| 610 | 1 | |a Lambert law | |
| 610 | 1 | |a численное моделирование | |
| 610 | 1 | |a закон Ламберта | |
| 610 | 1 | |a тепловой анализ | |
| 610 | 1 | |a вычислительная гидродинамика | |
| 610 | 1 | |a лучистое отопление | |
| 610 | 1 | |a тепловые потоки | |
| 610 | 1 | |a число Релея | |
| 700 | 1 | |a Nee |b A. E. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Sciences |f 1990- |g Aleksandr Eduardovich |3 (RuTPU)RU\TPU\pers\35708 |9 18868 | |
| 701 | 1 | |a Chamkha |b A. J. |g Ali | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) |3 (RuTPU)RU\TPU\col\23504 |
| 801 | 0 | |a RU |b 63413507 |c 20221223 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1007/s10973-021-11140-3 | |
| 942 | |c CF | ||