Simulation of conjugate radiation–forced convection heat transfer in a porous medium using the lattice Boltzmann method
نویسنده:
, , , , , , ,سال
: 2019
چکیده: In this paper, a lattice Boltzmann method
is employed to simulate the conjugate radiation–
forced convection heat transfer in a porous medium.
The absorbing, emitting, and scattering phenomena
are fully included in the model. The effects of different
parameters of a silicon carbide porous medium
including porosity, pore size, conduction–radiation
ratio, extinction coefficient and kinematic viscosity
ratio on the temperature and velocity distributions are
investigated. The convergence times of modified and
regular LBMs for this problem are 15 s and 94 s,
respectively, indicating a considerable reduction in the
solution time through using the modified LBM.
Further, the thermal plume formed behind the porous
cylinder elongates as the porosity and pore size
increase. This result reveals that the thermal penetration
of the porous cylinder increases with increasing
the porosity and pore size. Finally, the mean temperature
at the channel output increases by about 22% as
the extinction coefficient of fluid increases in the range
of 0–0.03.
is employed to simulate the conjugate radiation–
forced convection heat transfer in a porous medium.
The absorbing, emitting, and scattering phenomena
are fully included in the model. The effects of different
parameters of a silicon carbide porous medium
including porosity, pore size, conduction–radiation
ratio, extinction coefficient and kinematic viscosity
ratio on the temperature and velocity distributions are
investigated. The convergence times of modified and
regular LBMs for this problem are 15 s and 94 s,
respectively, indicating a considerable reduction in the
solution time through using the modified LBM.
Further, the thermal plume formed behind the porous
cylinder elongates as the porosity and pore size
increase. This result reveals that the thermal penetration
of the porous cylinder increases with increasing
the porosity and pore size. Finally, the mean temperature
at the channel output increases by about 22% as
the extinction coefficient of fluid increases in the range
of 0–0.03.
شناسه الکترونیک: 10.1007/s11012-019-00967-8
کلیدواژه(گان): Lattice Boltzmann,Conjugate
radiation–forced convection,Porous medium,
Porosity,Conduction radiation ratio
کالکشن
:
-
آمار بازدید
Simulation of conjugate radiation–forced convection heat transfer in a porous medium using the lattice Boltzmann method
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| contributor author | یوسف کاظمیان | en |
| contributor author | سامان رشیدی | en |
| contributor author | جواد ابوالفضلی اصفهانی | en |
| contributor author | نادر کریمی | en |
| contributor author | yousef kazemian | fa |
| contributor author | Saman Rashidi | fa |
| contributor author | Javad Abolfazli Esfahani | fa |
| contributor author | Nader Karimi | fa |
| date accessioned | 2020-06-06T13:44:18Z | |
| date available | 2020-06-06T13:44:18Z | |
| date issued | 2019 | |
| identifier uri | https://libsearch.um.ac.ir:443/fum/handle/fum/3367080 | |
| description abstract | In this paper, a lattice Boltzmann method is employed to simulate the conjugate radiation– forced convection heat transfer in a porous medium. The absorbing, emitting, and scattering phenomena are fully included in the model. The effects of different parameters of a silicon carbide porous medium including porosity, pore size, conduction–radiation ratio, extinction coefficient and kinematic viscosity ratio on the temperature and velocity distributions are investigated. The convergence times of modified and regular LBMs for this problem are 15 s and 94 s, respectively, indicating a considerable reduction in the solution time through using the modified LBM. Further, the thermal plume formed behind the porous cylinder elongates as the porosity and pore size increase. This result reveals that the thermal penetration of the porous cylinder increases with increasing the porosity and pore size. Finally, the mean temperature at the channel output increases by about 22% as the extinction coefficient of fluid increases in the range of 0–0.03. | en |
| language | English | |
| title | Simulation of conjugate radiation–forced convection heat transfer in a porous medium using the lattice Boltzmann method | en |
| type | Journal Paper | |
| contenttype | External Fulltext | |
| subject keywords | Lattice Boltzmann | en |
| subject keywords | Conjugate radiation–forced convection | en |
| subject keywords | Porous medium | en |
| subject keywords | Porosity | en |
| subject keywords | Conduction radiation ratio | en |
| identifier doi | 10.1007/s11012-019-00967-8 | |
| journal title | Meccanica | fa |
| pages | 505-524 | |
| journal volume | 54 | |
| journal issue | 3 | |
| identifier link | https://profdoc.um.ac.ir/paper-abstract-1073123.html | |
| identifier articleid | 1073123 |