About: A modified turbulence model for simulating airflow aircraft cabin environment with mixed convection

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	A modified turbulence model for simulating airflow aircraft cabin environment with mixed convection
Creator	Liu, Yang Zhao, Ming Li, Xiaojian Liu, Zhengxian Zhao, Yijia
Source	PMC
abstract	The forced convection (air supply jet) and the natural convection (thermal plume of passenger) co-exist in an aircraft cabin simultaneously. Due to the notable difference of the Reynolds numbers for the two convection processes, the traditional RANS method can hardly simulate the forced/natural convection flows accurately at the same time. In addition, the large geometric ratio between the main air supply inlet and the whole cabin leads to difficulties in grid generation for the cabin space. An efficient computational model based on the standard k-e model is established to solve these problems. The coefficients in the dissipative equation are modified to compensate the enlarged numerical dissipation caused by coarse grid; meanwhile, the piecewise-defined turbulent viscosity is introduced to combine the forced and natural convection. The modified model is validated by available experimental results in a Boeing 737-200 mock-up. Furthermore, the unsteady characteristic of the aircraft cabin environment is obtained and analyzed. According to the frequency analysis, it turns out that the thermal plume is the main factor of the unsteady fluctuation in cabin. ELECTRONIC SUPPLEMENTARY MATERIAL: Electronic Supplementary Material (ESM): supplementary material is available in the online version of this article at 10.1007/s12273-020-0609-2.
has issue date	2020-03-26(xsd:dateTime)
bibo:doi	10.1007/s12273-020-0609-2
bibo:pmid	32226591
has license	no-cc
sha1sum (hex)	0b8f941a2f75de61f6d0a4edcaa3d65eb67670d1
schema:url	https://doi.org/10.1007/s12273-020-0609-2
resource representing a document's title	A modified turbulence model for simulating airflow aircraft cabin environment with mixed convection
has PubMed Central identifier	PMC7100490
has PubMed identifier	32226591
schema:publication	Build Simul
resource representing a document's body	covid:0b8f941a2f75de61f6d0a4edcaa3d65eb67670d1#body_text
is schema:about of	named entity 'factor' named entity 'leads' named entity 'combine' named entity 'According' named entity 'computational model' named entity 'environment' named entity 'turbulence model' named entity 'ADDITION' named entity 'CONVECTION' named entity 'INTRODUCED' named entity 'PLUME' named entity 'COEFFICIENTS' named entity 'EXIST' named entity 'FORCED' named entity 'STANDARD' named entity 'RATIO' named entity 'VISCOSITY' named entity 'TRADITIONAL' named entity 'HARDLY' named entity 'DIFFICULTIES' named entity 'TIME' named entity 'FREQUENCY ANALYSIS' named entity 'model' named entity 'efficient' named entity 'The' named entity 'dissipative' named entity 'numerical' named entity 'thermal' named entity 'computational model' named entity 'thermal plume' named entity 'viscosity' named entity 'piecewise-defined' named entity 'turbulence model' named entity 'mixed convection' named entity 'thermal plume' named entity 'boundary condition' named entity 'm/s' named entity 'aircraft cabin' named entity 'temperature difference' named entity 'aircraft cabin' named entity 'main flow' named entity 'upwind scheme' named entity 'thermal plume' named entity 'thermal plume' named entity 'periodic boundary conditions' named entity 'aircraft cabin' named entity 'thermal plume' named entity 'vortices' named entity 'forced convection' named entity 'RANS' named entity 'convection' named entity '10.5' named entity 'thermal plume' named entity 'vortices' named entity 'turbulence' named entity 'thermal plume' named entity 'boundary layer' named entity 'vortex structure' named entity 'thermal plume' named entity 'viscosity' named entity 'geometric model' named entity 'thermal plume' named entity 'piecewise-defined' named entity 'infectious diseases' named entity 'cluster analysis' named entity 'infectious disease' named entity 'steady flow' named entity 'turbulence models' named entity 'boundary conditions' named entity 'thermal plume' named entity 'Reynolds-averaged Navier-Stokes' named entity 'diffusion' named entity 'thermal plume' named entity 'unsteady flow' named entity 'unsteady flow' named entity 'viscosity' named entity 'natural convection'

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