A coupled, multiphase heat flux boundary condition for the discrete element method
Abstract
Similar to single-phase flows, multiphase systems with a constant heat flux at the wall are common in practice. Unlike single-phase flows, however, the numerical implementation of a constant boundary flux is non-trivial due to the coupling between phases – i.e., the partition of the total flux between the phases can vary in space and time. A numerical technique for modeling such a boundary condition is proposed here and verified via simulations of gas-solid flows. While discrete-particle simulations of monodisperse particles are considered in this report, the technique can be extended to include radiation, polydisperse systems, and/or a continuum representation of the solids phase.
- Authors:
-
- University of Colorado, Boulder, CO (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1533611
- Alternate Identifier(s):
- OSTI ID: 1437496
- Grant/Contract Number:
- EE0005954; AC05-00OR2272
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chemical Engineering Journal
- Additional Journal Information:
- Journal Volume: 304; Journal Issue: C; Journal ID: ISSN 1385-8947
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; DEM; heat transfer; boundary conditions
Citation Formats
Lattanzi, Aaron M., and Hrenya, Christine M. A coupled, multiphase heat flux boundary condition for the discrete element method. United States: N. p., 2016.
Web. doi:10.1016/j.cej.2016.07.004.
Lattanzi, Aaron M., & Hrenya, Christine M. A coupled, multiphase heat flux boundary condition for the discrete element method. United States. https://doi.org/10.1016/j.cej.2016.07.004
Lattanzi, Aaron M., and Hrenya, Christine M. Sat .
"A coupled, multiphase heat flux boundary condition for the discrete element method". United States. https://doi.org/10.1016/j.cej.2016.07.004. https://www.osti.gov/servlets/purl/1533611.
@article{osti_1533611,
title = {A coupled, multiphase heat flux boundary condition for the discrete element method},
author = {Lattanzi, Aaron M. and Hrenya, Christine M.},
abstractNote = {Similar to single-phase flows, multiphase systems with a constant heat flux at the wall are common in practice. Unlike single-phase flows, however, the numerical implementation of a constant boundary flux is non-trivial due to the coupling between phases – i.e., the partition of the total flux between the phases can vary in space and time. A numerical technique for modeling such a boundary condition is proposed here and verified via simulations of gas-solid flows. While discrete-particle simulations of monodisperse particles are considered in this report, the technique can be extended to include radiation, polydisperse systems, and/or a continuum representation of the solids phase.},
doi = {10.1016/j.cej.2016.07.004},
journal = {Chemical Engineering Journal},
number = C,
volume = 304,
place = {United States},
year = {Sat Jul 02 00:00:00 EDT 2016},
month = {Sat Jul 02 00:00:00 EDT 2016}
}
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