The Library
Assessment of an unstructured exponential scheme discrete ordinates radiation model for non-gray media
Tools
Dembele, S., Lima, K. L. M. and Wen, Jennifer X. (2011) Assessment of an unstructured exponential scheme discrete ordinates radiation model for non-gray media. Heat and Mass Transfer, Volume 47 (Number 11). pp. 1349-1362. doi:10.1007/s00231-011-0805-9 ISSN 0947-7411.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1007/s00231-011-0805-9
Abstract
For radiative transfer in complex geometries, Sakami and his co-workers have developed a discrete ordinates method (DOM) exponential scheme for unstructured meshes which was mainly applied to gray media. The present study investigates the application of the unstructured exponential scheme to a wider range of non-gray scenarios found in fire and combustion applications, with the goal to implement it in an in-house Computational Fluid Dynamics (CFD) code for fire simulations. The original unstructured gray exponential scheme is adapted to non-gray applications by employing a statistical narrow-band/correlated-k (SNB-CK) gas model and meshes generated using the authors’ own mesh generator. Different non-gray scenarios involving spectral gas absorption by H2O and CO2 are investigated and a comparative analysis is carried out between heat flux and radiative source terms predicted and literature data based on ray-tracing and Monte Carlo methods. The maximum discrepancies for total radiative heat flux do not typically exceed 5%.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Heat and Mass Transfer | ||||
Publisher: | Springer | ||||
ISSN: | 0947-7411 | ||||
Official Date: | 2011 | ||||
Dates: |
|
||||
Volume: | Volume 47 | ||||
Number: | Number 11 | ||||
Page Range: | pp. 1349-1362 | ||||
DOI: | 10.1007/s00231-011-0805-9 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |