Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0360-1323(01)00038-5
Title: Development of a simplified technique of modelling four-way ceiling air supply diffuser
Authors: Djunaedy, E. 
Cheong, K.W.D. 
Keywords: Accuracy
Air distribution
CFD
Diffuser modelling
Validation
Issue Date: 2002
Source: Djunaedy, E., Cheong, K.W.D. (2002). Development of a simplified technique of modelling four-way ceiling air supply diffuser. Building and Environment 37 (4) : 393-403. ScholarBank@NUS Repository. https://doi.org/10.1016/S0360-1323(01)00038-5
Abstract: Computational fluid dynamic (CFD) tools have been used extensively in the prediction of airflow in indoor environment. However, it is important to understand that the accuracy of such simulation is affected by a number of factors depending on micro- or macro-level of modelling. It is in the interest of this paper to study, in micro-level modelling, the impact of various description of air supply diffuser modelling on the accuracy of the airflow prediction. Air supply diffuser can be modelled in a number of different ways. Each technique can result in different airflow pattern around the diffuser and in the macro-environment. This paper investigates five different types of air supply diffuser modelling techniques. It compares the throw profile of each of these diffuser models against the measured profile in rooms of three different sizes. A diffuser modelling technique that uses the RNG k-ε turbulence model has been successfully developed. It is simple and yet without compromising on the accuracy of the predicted results. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Building and Environment
URI: http://scholarbank.nus.edu.sg/handle/10635/45635
ISSN: 03601323
DOI: 10.1016/S0360-1323(01)00038-5
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

14
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

7
checked on Nov 21, 2017

Page view(s)

47
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.