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Sensitivity of the predicted convective heat transfer in a cooled room to the computational fluid dynamics simulation approach

Kim Goethals UGent and Arnold Janssens UGent (2013) JOURNAL OF BUILDING PERFORMANCE SIMULATION. 6(6). p.420-436
abstract
Computational fluid dynamics (CFD) plays an increasingly important role in the design, analysis and optimization of engineering systems. However, CFD does not necessarily provide reliable results. The most crucial numerical solution error is caused by inadequate grid resolution, and the key modelling error sources in CFD in ventilated indoor environments are turbulence modelling and diffuser modelling. Many researchers already proposed guidelines, but they based their analyses on local variables. In response, underlying study intended to verify the impact of the CFD simulation approach on the convective heat flux, an integral quantity. The authors tested several grids, Reynolds averaged Navier–Stokes turbulence models and diffuser models for three convection regimes in a cooled room. The diffuser modelling had a much larger impact than the grid and the turbulence modelling, as long as the jet dominated the airflow. So, CFD users, who want to model forced/mixed convection airflow indoors, certainly need to pay attention to the diffuser modelling.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
VALIDATION, CFD, NOZZLE DIFFUSER, TURBULENCE MODELS, NATURAL-CONVECTION, AIR-FLOW, diffuser modelling, VERIFICATION, ENVIRONMENTS, OPENINGS, DESIGN, computational fluid dynamics, sensitivity, convective heat transfer, grid convergence, turbulence modelling
journal title
JOURNAL OF BUILDING PERFORMANCE SIMULATION
volume
6
issue
6
pages
420 - 436
Web of Science type
Article
Web of Science id
000326309700002
JCR category
CONSTRUCTION & BUILDING TECHNOLOGY
JCR impact factor
2.043 (2013)
JCR rank
8/58 (2013)
JCR quartile
1 (2013)
ISSN
1940-1493
DOI
10.1080/19401493.2012.737833
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3063980
handle
http://hdl.handle.net/1854/LU-3063980
date created
2012-12-03 13:34:31
date last changed
2015-06-17 10:19:26
@article{3063980,
  abstract     = {Computational fluid dynamics (CFD) plays an increasingly important role in the design, analysis and optimization of engineering systems. However, CFD does not necessarily provide reliable results. The most crucial numerical solution error is caused by inadequate grid resolution, and the key modelling error sources in CFD in ventilated indoor environments are turbulence modelling and diffuser modelling. Many researchers already proposed guidelines, but they based their analyses on local variables. In response, underlying study intended to verify the impact of the CFD simulation approach on the convective heat flux, an integral quantity. The authors tested several grids, Reynolds averaged Navier--Stokes turbulence models and diffuser models for three convection regimes in a cooled room. The diffuser modelling had a much larger impact than the grid and the turbulence modelling, as long as the jet dominated the airflow. So, CFD users, who want to model forced/mixed convection airflow indoors, certainly need to pay attention to the diffuser modelling.},
  author       = {Goethals, Kim and Janssens, Arnold},
  issn         = {1940-1493},
  journal      = {JOURNAL OF BUILDING PERFORMANCE SIMULATION},
  keyword      = {VALIDATION,CFD,NOZZLE DIFFUSER,TURBULENCE MODELS,NATURAL-CONVECTION,AIR-FLOW,diffuser modelling,VERIFICATION,ENVIRONMENTS,OPENINGS,DESIGN,computational fluid dynamics,sensitivity,convective heat transfer,grid convergence,turbulence modelling},
  language     = {eng},
  number       = {6},
  pages        = {420--436},
  title        = {Sensitivity of the predicted convective heat transfer in a cooled room to the computational fluid dynamics simulation approach},
  url          = {http://dx.doi.org/10.1080/19401493.2012.737833},
  volume       = {6},
  year         = {2013},
}

Chicago
Goethals, Kim, and Arnold Janssens. 2013. “Sensitivity of the Predicted Convective Heat Transfer in a Cooled Room to the Computational Fluid Dynamics Simulation Approach.” Journal of Building Performance Simulation 6 (6): 420–436.
APA
Goethals, Kim, & Janssens, A. (2013). Sensitivity of the predicted convective heat transfer in a cooled room to the computational fluid dynamics simulation approach. JOURNAL OF BUILDING PERFORMANCE SIMULATION, 6(6), 420–436.
Vancouver
1.
Goethals K, Janssens A. Sensitivity of the predicted convective heat transfer in a cooled room to the computational fluid dynamics simulation approach. JOURNAL OF BUILDING PERFORMANCE SIMULATION. 2013;6(6):420–36.
MLA
Goethals, Kim, and Arnold Janssens. “Sensitivity of the Predicted Convective Heat Transfer in a Cooled Room to the Computational Fluid Dynamics Simulation Approach.” JOURNAL OF BUILDING PERFORMANCE SIMULATION 6.6 (2013): 420–436. Print.