Assessment of turbulence models and air supply opening models for CFD modelling of airflow and gaseous contaminant distributions in aircraft cabins

Li, M, Yan, Y, Zhao, B, Tu, J, Liu, J, Li, F and Wang, C 2017, 'Assessment of turbulence models and air supply opening models for CFD modelling of airflow and gaseous contaminant distributions in aircraft cabins', Indoor and Built Environment, vol. 27, no. 5, pp. 606-621.


Document type: Journal Article
Collection: Journal Articles

Title Assessment of turbulence models and air supply opening models for CFD modelling of airflow and gaseous contaminant distributions in aircraft cabins
Author(s) Li, M
Yan, Y
Zhao, B
Tu, J
Liu, J
Li, F
Wang, C
Year 2017
Journal name Indoor and Built Environment
Volume number 27
Issue number 5
Start page 606
End page 621
Total pages 16
Publisher Sage
Abstract Computational fluid dynamics (CFD) is an important and effective tool to study the airflow field and contaminant distribution in aircraft cabins. The accuracy of numerical simulation using the CFD approach could be significantly affected by configurations of the inlet boundary conditions, turbulence model, etc. The core of this study was to assess whether conclusions achieved in simulation of airflow on usual surfaces in buildings like in commercial offices could be applicable to aircraft cabins. Comparative studies involving turbulence models or air supply opening models in aircraft cabin environment are still absent in the literature. Therefore, in this study, two turbulence models (the renormalization group (RNG) k-" model and Reynolds-stress model) and three types of air supply opening models (simple open model, basic model and momentum model) were applied to simulate the airflow and contaminant concentration fields in a mockup seven-row cabin section. Our simulation results were compared with the experimental data. Six indexes based on different criteria were used to quantitatively evaluate the agreement between measurements and modelled results given by turbulence models and air supply opening models. The results show that the RNG k-" and RSM turbulence models have similar accuracy in airflow and contaminant fields in the mockup cabin, and the momentum model has the best accuracy among the three air supply opening models for the aircraft cabin environment.
Subject Computational Fluid Dynamics
Engineering Design not elsewhere classified
Keyword(s) Aircraft cabins
CFD
Turbulence models
Air supply opening models
Gaseous contaminants
Indoor air
DOI - identifier 10.1177/1420326X16688049
Copyright notice © The Author(s) 2017
ISSN 1423-0070
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