A benchmark test for room air distribution: The backward facing step flow

Peter V. Nielsen, Chen Zhang, Christina Kjær, Daniel Leiria, Henriette Nørholm, Truls Ramstad, Anastasios Rovithakis

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

This paper concerns the use of Computational Fluid Dynamics (CFD) for the prediction of room air movement and provide a guide on selecting of the proper turbulence model. The benchmark describes a backward-facing step flow problem. The measurements were performed in a small-scale model and the velocity filed was measured by Particle Image Velocimetry (PIV). The measurements focus on transitional flow and fully developed turbulent flow at isothermal condition. PIV measurements and CFD predictions are compared. CFD predictions are generally slightly diverse, and this is, among other things, the result of using different turbulence models as well as using different software codes, grid distribution and boundary values etc. The k-ε family of turbulence models is an option for fully developed flow, and the k-ω family does work for transitional low turbulent flow in this backward-facing step flow.
OriginalsprogEngelsk
TitelProceedings of IAQVEC2019 Conference : IOP Conference Series: Materials Science and Engineering
Vol/bind609
Publikationsdato2019
DOI
StatusUdgivet - 2019
BegivenhedConference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Healthy Nearly Zero Energy Buildings - Politecnico di Bari, Bari, Italien
Varighed: 5 sep. 20197 sep. 2019
Konferencens nummer: 10
https://www.iaqvec2019.org

Konference

KonferenceConference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
Nummer10
LokationPolitecnico di Bari
LandItalien
ByBari
Periode05/09/201907/09/2019
Internetadresse

Fingerprint

Turbulence models
Computational fluid dynamics
Velocity measurement
Turbulent flow
Air

Citer dette

Nielsen, P. V., Zhang, C., Kjær, C., Leiria, D., Nørholm, H., Ramstad, T., & Rovithakis, A. (2019). A benchmark test for room air distribution: The backward facing step flow. I Proceedings of IAQVEC2019 Conference: IOP Conference Series: Materials Science and Engineering (Bind 609) https://doi.org/10.1088/1757-899X/609/3/032017
Nielsen, Peter V. ; Zhang, Chen ; Kjær, Christina ; Leiria, Daniel ; Nørholm, Henriette ; Ramstad, Truls ; Rovithakis, Anastasios. / A benchmark test for room air distribution: The backward facing step flow. Proceedings of IAQVEC2019 Conference: IOP Conference Series: Materials Science and Engineering. Bind 609 2019.
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Nielsen, PV, Zhang, C, Kjær, C, Leiria, D, Nørholm, H, Ramstad, T & Rovithakis, A 2019, A benchmark test for room air distribution: The backward facing step flow. i Proceedings of IAQVEC2019 Conference: IOP Conference Series: Materials Science and Engineering. bind 609, Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, Bari, Italien, 05/09/2019. https://doi.org/10.1088/1757-899X/609/3/032017

A benchmark test for room air distribution: The backward facing step flow. / Nielsen, Peter V.; Zhang, Chen; Kjær, Christina; Leiria, Daniel; Nørholm, Henriette; Ramstad, Truls; Rovithakis, Anastasios.

Proceedings of IAQVEC2019 Conference: IOP Conference Series: Materials Science and Engineering. Bind 609 2019.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Nielsen PV, Zhang C, Kjær C, Leiria D, Nørholm H, Ramstad T et al. A benchmark test for room air distribution: The backward facing step flow. I Proceedings of IAQVEC2019 Conference: IOP Conference Series: Materials Science and Engineering. Bind 609. 2019 https://doi.org/10.1088/1757-899X/609/3/032017