Comparison of coarse grid lattice Boltzmann and Navier Stokes for real time flow simulations in rooms

Basman Elhadidi; H. Ezzat Khalifa

doi:10.1007/s12273-013-0107-x

Comparison of coarse grid lattice Boltzmann and Navier Stokes for real time flow simulations in rooms

Basman Elhadidi, H. Ezzat Khalifa

Department of Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Coarse grid lattice Boltzmann models (LBM) and computational fluid dynamics (CFD) are compared in building simulations. Three simulations are used to assess the different numerical models: (i) a 2D isothermal flow case, (ii) a 3D isothermal flow case and (iii) a 2D non-isothermal flow case. Both models predicted the correct flow patterns and temperature field and could be used for real time (RT), near real time (NRT) and faster than real time (FRT) simulations without loss of accuracy on multi-core processors. The results indicate that the coarse grid CFD is both faster and more time accurate than the LBM for unsteady simulations.

Original language	English (US)
Pages (from-to)	183-194
Number of pages	12
Journal	Building Simulation
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/s12273-013-0107-x
State	Published - Jun 2013

Keywords

coarse grid CFD
fast fluid dynamics
lattice Boltzmann methods

ASJC Scopus subject areas

Building and Construction
Energy (miscellaneous)

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10.1007/s12273-013-0107-x

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title = "Comparison of coarse grid lattice Boltzmann and Navier Stokes for real time flow simulations in rooms",

abstract = "Coarse grid lattice Boltzmann models (LBM) and computational fluid dynamics (CFD) are compared in building simulations. Three simulations are used to assess the different numerical models: (i) a 2D isothermal flow case, (ii) a 3D isothermal flow case and (iii) a 2D non-isothermal flow case. Both models predicted the correct flow patterns and temperature field and could be used for real time (RT), near real time (NRT) and faster than real time (FRT) simulations without loss of accuracy on multi-core processors. The results indicate that the coarse grid CFD is both faster and more time accurate than the LBM for unsteady simulations.",

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author = "Basman Elhadidi and Khalifa, {H. Ezzat}",

note = "Funding Information: This research was funded by the Syracuse Center of Excellence in Environmental and Energy Systems. Basman Elhadidi would like to thank Professor H. Ezzat Khalifa for funding this research during Dr. Elhadidi{\textquoteright}s sabbatical visit at Syracuse University.",

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doi = "10.1007/s12273-013-0107-x",

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T1 - Comparison of coarse grid lattice Boltzmann and Navier Stokes for real time flow simulations in rooms

AU - Elhadidi, Basman

AU - Khalifa, H. Ezzat

N1 - Funding Information: This research was funded by the Syracuse Center of Excellence in Environmental and Energy Systems. Basman Elhadidi would like to thank Professor H. Ezzat Khalifa for funding this research during Dr. Elhadidi’s sabbatical visit at Syracuse University.

PY - 2013/6

Y1 - 2013/6

N2 - Coarse grid lattice Boltzmann models (LBM) and computational fluid dynamics (CFD) are compared in building simulations. Three simulations are used to assess the different numerical models: (i) a 2D isothermal flow case, (ii) a 3D isothermal flow case and (iii) a 2D non-isothermal flow case. Both models predicted the correct flow patterns and temperature field and could be used for real time (RT), near real time (NRT) and faster than real time (FRT) simulations without loss of accuracy on multi-core processors. The results indicate that the coarse grid CFD is both faster and more time accurate than the LBM for unsteady simulations.

AB - Coarse grid lattice Boltzmann models (LBM) and computational fluid dynamics (CFD) are compared in building simulations. Three simulations are used to assess the different numerical models: (i) a 2D isothermal flow case, (ii) a 3D isothermal flow case and (iii) a 2D non-isothermal flow case. Both models predicted the correct flow patterns and temperature field and could be used for real time (RT), near real time (NRT) and faster than real time (FRT) simulations without loss of accuracy on multi-core processors. The results indicate that the coarse grid CFD is both faster and more time accurate than the LBM for unsteady simulations.

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KW - lattice Boltzmann methods

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Comparison of coarse grid lattice Boltzmann and Navier Stokes for real time flow simulations in rooms

Abstract

Keywords

ASJC Scopus subject areas

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