Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser
The gas-solids flow in a CFB riser is simulated applying two-fluid modeling. Two different procedures are used for the calculation of the solids phase pressure and stress tensor: the traditional procedure and an algebraic version of the kinetic theory of granular flows. Three different numerical meshes and two different discretization schemes for the advective terms are used. Results are compared to available experimental data from the literature. The effects of the solids phase modeling procedure, advection discretization scheme, and mesh size are discussed.
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Brazilian Society of Chemical Engineering
2006
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oai:scielo:S0104-663220060004000062007-04-25Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riserCabezas-Gómez,L.Silva,R. C.Milioli,F. E. Gas-solids flow Riser Circulating fluidized bed Two-fluid model Kinetic theory of granular flows MFIX The gas-solids flow in a CFB riser is simulated applying two-fluid modeling. Two different procedures are used for the calculation of the solids phase pressure and stress tensor: the traditional procedure and an algebraic version of the kinetic theory of granular flows. Three different numerical meshes and two different discretization schemes for the advective terms are used. Results are compared to available experimental data from the literature. The effects of the solids phase modeling procedure, advection discretization scheme, and mesh size are discussed.info:eu-repo/semantics/openAccessBrazilian Society of Chemical EngineeringBrazilian Journal of Chemical Engineering v.23 n.4 20062006-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000400006en10.1590/S0104-66322006000400006 |
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| author |
Cabezas-Gómez,L. Silva,R. C. Milioli,F. E. |
| spellingShingle |
Cabezas-Gómez,L. Silva,R. C. Milioli,F. E. Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| author_facet |
Cabezas-Gómez,L. Silva,R. C. Milioli,F. E. |
| author_sort |
Cabezas-Gómez,L. |
| title |
Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| title_short |
Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| title_full |
Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| title_fullStr |
Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| title_full_unstemmed |
Some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a CFB riser |
| title_sort |
some modeling and numerical aspects of the two-fluid simulation of the gas-solids flow in a cfb riser |
| description |
The gas-solids flow in a CFB riser is simulated applying two-fluid modeling. Two different procedures are used for the calculation of the solids phase pressure and stress tensor: the traditional procedure and an algebraic version of the kinetic theory of granular flows. Three different numerical meshes and two different discretization schemes for the advective terms are used. Results are compared to available experimental data from the literature. The effects of the solids phase modeling procedure, advection discretization scheme, and mesh size are discussed. |
| publisher |
Brazilian Society of Chemical Engineering |
| publishDate |
2006 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000400006 |
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| _version_ |
1756411194145505280 |