A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations
A methodology for performing radiative transfer calculations in computational fluid dynamic simulations of gas-liquid multiphase flows is presented. By considering an externally irradiated bubble column photoreactor as our model system, the bubble scattering coefficients were determined through add-...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/793238 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567578815365120 |
|---|---|
| author | Gautham Krishnamoorthy Rydell Klosterman Dylan Shallbetter |
| author_facet | Gautham Krishnamoorthy Rydell Klosterman Dylan Shallbetter |
| author_sort | Gautham Krishnamoorthy |
| collection | DOAJ |
| description | A methodology for performing radiative transfer calculations in computational fluid dynamic simulations of gas-liquid multiphase flows is presented. By considering an externally irradiated bubble column photoreactor as our model system, the bubble scattering coefficients were determined through add-on functions by employing as inputs the bubble volume fractions, number densities, and the fractional contribution of each bubble size to the bubble volume from four different multiphase modeling options. The scattering coefficient profiles resulting from the models were significantly different from one another and aligned closely with their predicted gas-phase volume fraction distributions. The impacts of the multiphase modeling option, initial bubble diameter, and gas flow rates on the radiation distribution patterns within the reactor were also examined. An increase in air inlet velocities resulted in an increase in the fraction of larger sized bubbles and their contribution to the scattering coefficient. However, the initial bubble sizes were found to have the strongest impact on the radiation field. |
| format | Article |
| id | doaj-art-3897583759a543f896533c1469b53220 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-3897583759a543f896533c1469b532202025-02-03T01:01:04ZengWileyJournal of Engineering2314-49042314-49122014-01-01201410.1155/2014/793238793238A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow SimulationsGautham Krishnamoorthy0Rydell Klosterman1Dylan Shallbetter2Department of Chemical Engineering, University of North Dakota, Harrington Hall Room 323, 241 Centennial Drive Stop 7101, Grand Forks, ND 58202-7101, USADepartment of Chemical Engineering, University of North Dakota, Harrington Hall Room 323, 241 Centennial Drive Stop 7101, Grand Forks, ND 58202-7101, USADepartment of Chemical Engineering, University of North Dakota, Harrington Hall Room 323, 241 Centennial Drive Stop 7101, Grand Forks, ND 58202-7101, USAA methodology for performing radiative transfer calculations in computational fluid dynamic simulations of gas-liquid multiphase flows is presented. By considering an externally irradiated bubble column photoreactor as our model system, the bubble scattering coefficients were determined through add-on functions by employing as inputs the bubble volume fractions, number densities, and the fractional contribution of each bubble size to the bubble volume from four different multiphase modeling options. The scattering coefficient profiles resulting from the models were significantly different from one another and aligned closely with their predicted gas-phase volume fraction distributions. The impacts of the multiphase modeling option, initial bubble diameter, and gas flow rates on the radiation distribution patterns within the reactor were also examined. An increase in air inlet velocities resulted in an increase in the fraction of larger sized bubbles and their contribution to the scattering coefficient. However, the initial bubble sizes were found to have the strongest impact on the radiation field.http://dx.doi.org/10.1155/2014/793238 |
| spellingShingle | Gautham Krishnamoorthy Rydell Klosterman Dylan Shallbetter A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations Journal of Engineering |
| title | A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations |
| title_full | A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations |
| title_fullStr | A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations |
| title_full_unstemmed | A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations |
| title_short | A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations |
| title_sort | radiative transfer modeling methodology in gas liquid multiphase flow simulations |
| url | http://dx.doi.org/10.1155/2014/793238 |
| work_keys_str_mv | AT gauthamkrishnamoorthy aradiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations AT rydellklosterman aradiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations AT dylanshallbetter aradiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations AT gauthamkrishnamoorthy radiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations AT rydellklosterman radiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations AT dylanshallbetter radiativetransfermodelingmethodologyingasliquidmultiphaseflowsimulations |