A comparison between CFD and Network models for predicting wind-driven ventilation in buildings

Omar S. Asfour; Mohamed B. Gadi

doi:10.1016/j.buildenv.2006.11.021

A comparison between CFD and Network models for predicting wind-driven ventilation in buildings

Omar S. Asfour^*, Mohamed B. Gadi

^*Corresponding author for this work

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

116 Scopus citations

Abstract

The aim of this paper is to compare the implementation of computational fluid dynamics (CFD) and Network models for airflow rate estimation in buildings. The CFD software used is Fluent 5.5. Comparison between the predicted and simulated airflow rate is suggested as a validation method of the implemented CFD code, while the common practice is to compare CFD outputs to wind tunnel or full-scale measurements. This could be useful for studies that have no access to laboratory or full-scale testing facilities. Results obtained from testing a number of cases have been compared and analysed, considering normal and oblique wind directions. The comparison held between mathematical and CFD results generally showed a good agreement, which seems to justify the use of CFD code for predicting natural ventilation in buildings.

Original language	English
Pages (from-to)	4079-4085
Number of pages	7
Journal	Building and Environment
Volume	42
Issue number	12
DOIs	https://doi.org/10.1016/j.buildenv.2006.11.021
State	Published - Dec 2007
Externally published	Yes

Keywords

CFD
Natural ventilation
Network model
Validation

ASJC Scopus subject areas

Environmental Engineering
Civil and Structural Engineering
Geography, Planning and Development
Building and Construction

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10.1016/j.buildenv.2006.11.021

Cite this

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title = "A comparison between CFD and Network models for predicting wind-driven ventilation in buildings",

abstract = "The aim of this paper is to compare the implementation of computational fluid dynamics (CFD) and Network models for airflow rate estimation in buildings. The CFD software used is Fluent 5.5. Comparison between the predicted and simulated airflow rate is suggested as a validation method of the implemented CFD code, while the common practice is to compare CFD outputs to wind tunnel or full-scale measurements. This could be useful for studies that have no access to laboratory or full-scale testing facilities. Results obtained from testing a number of cases have been compared and analysed, considering normal and oblique wind directions. The comparison held between mathematical and CFD results generally showed a good agreement, which seems to justify the use of CFD code for predicting natural ventilation in buildings.",

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AU - Asfour, Omar S.

AU - Gadi, Mohamed B.

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N2 - The aim of this paper is to compare the implementation of computational fluid dynamics (CFD) and Network models for airflow rate estimation in buildings. The CFD software used is Fluent 5.5. Comparison between the predicted and simulated airflow rate is suggested as a validation method of the implemented CFD code, while the common practice is to compare CFD outputs to wind tunnel or full-scale measurements. This could be useful for studies that have no access to laboratory or full-scale testing facilities. Results obtained from testing a number of cases have been compared and analysed, considering normal and oblique wind directions. The comparison held between mathematical and CFD results generally showed a good agreement, which seems to justify the use of CFD code for predicting natural ventilation in buildings.

AB - The aim of this paper is to compare the implementation of computational fluid dynamics (CFD) and Network models for airflow rate estimation in buildings. The CFD software used is Fluent 5.5. Comparison between the predicted and simulated airflow rate is suggested as a validation method of the implemented CFD code, while the common practice is to compare CFD outputs to wind tunnel or full-scale measurements. This could be useful for studies that have no access to laboratory or full-scale testing facilities. Results obtained from testing a number of cases have been compared and analysed, considering normal and oblique wind directions. The comparison held between mathematical and CFD results generally showed a good agreement, which seems to justify the use of CFD code for predicting natural ventilation in buildings.

KW - CFD

KW - Natural ventilation

KW - Network model

KW - Validation

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VL - 42

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EP - 4085

JO - Building and Environment

JF - Building and Environment

IS - 12

ER -

A comparison between CFD and Network models for predicting wind-driven ventilation in buildings

Abstract

Keywords

ASJC Scopus subject areas

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