Abstract
Computational fluid dynamics (CFD) was first introduced in the ventilation industry in the 1970s. CFD has been increasingly used since then, as testified by the number of peer-reviewed articles, which was less than 10 per year in the 1990s, and which is now 60 to 70 per year.
This article discusses the principle behind CFD, the development in numerical schemes and computer size since the 1970s. Special attention is given to the selection of the correct governing equations, to the understanding of low turbulent flow, to the selection of turbulence models, and to addressing situations with more steady-state solutions.
The article finishes with a number of different case studies such as flow in occupied spaces, smoke management in buildings, cross-infection risks from the exhalation of particles and calculation of people moving in a room. The use of benchmark tests is also addressed.
This article discusses the principle behind CFD, the development in numerical schemes and computer size since the 1970s. Special attention is given to the selection of the correct governing equations, to the understanding of low turbulent flow, to the selection of turbulence models, and to addressing situations with more steady-state solutions.
The article finishes with a number of different case studies such as flow in occupied spaces, smoke management in buildings, cross-infection risks from the exhalation of particles and calculation of people moving in a room. The use of benchmark tests is also addressed.
Originalsprog | Engelsk |
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Titel | Proceedings of Indoor Air 2014 |
Antal sider | 21 |
Forlag | International Society of Indoor Air Quality and Climate |
Publikationsdato | 2014 |
Status | Udgivet - 2014 |
Begivenhed | Indoor Air 2014: The 13th International Conference on Indoor Air Quality and Climate - Hong Kong, Hong Kong Varighed: 7 jul. 2014 → 12 jul. 2014 |
Konference
Konference | Indoor Air 2014 |
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Land/Område | Hong Kong |
By | Hong Kong |
Periode | 07/07/2014 → 12/07/2014 |
Bibliografisk note
Plenary paperEmneord
- Computational fluid dynamics
- Air and contaminant flow in rooms
- Numerical methods
- Governing equations
- Turbulence models