Numerical investigations of rack storage fires
(1999) Fire safety science : proceedings of the sixth international symposium p.1075-1086- Abstract
- A number of numerical simulations of rack storage fires have been carried out, with various fuel types and burner outputs. Both the standard buoyancy-modified k - turbulence model and a recently developed turbulence model which significantly improves the consideration of the buoyancy effect on turbulence and turbulent transport, were used to study the turbulence of the buoyant flow. The flamelet concept, coupled to a prescribed probability density function, was employed to model the non-premixed combustion process. Sooting was modeled by solving the balance equations for mass fraction and number density considering nucleation, surface growth, coagulation and oxidation. The discrete transfer method was used to calculate radiation, with the... (More)
- A number of numerical simulations of rack storage fires have been carried out, with various fuel types and burner outputs. Both the standard buoyancy-modified k - turbulence model and a recently developed turbulence model which significantly improves the consideration of the buoyancy effect on turbulence and turbulent transport, were used to study the turbulence of the buoyant flow. The flamelet concept, coupled to a prescribed probability density function, was employed to model the non-premixed combustion process. Sooting was modeled by solving the balance equations for mass fraction and number density considering nucleation, surface growth, coagulation and oxidation. The discrete transfer method was used to calculate radiation, with the radiation properties of the main radiating species - carbon dioxide, water vapour and soot, provided by a fast, narrowband model. The results, including heat flux and gas temperature profile, were analyzed and compared with experimental measurements. The comparisons showed considerably improved agreement for the new model. Copyright International Association for Fire Safety Science. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4468311
- author
- Yan, Zhenghua LU and Holmstedt, Göran LU
- organization
- publishing date
- 1999
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Fires, Buoyancy, Carbon dioxide, Coagulation, Computational fluid dynamics, Fuel storage, Heat flux, Heat transfer, Probability density function, Soot, Turbulence models
- host publication
- Fire Safety Science
- editor
- Curtat, Michel
- pages
- 1075 - 1086
- publisher
- Interscience Communications Ltd
- conference name
- Fire safety science : proceedings of the sixth international symposium
- conference location
- Poitiers, France
- conference dates
- 0001-01-02
- ISBN
- 0-925223-25-5
- language
- English
- LU publication?
- yes
- id
- b60c7abc-f6b2-4164-bcae-fae65dc468b3 (old id 4468311)
- date added to LUP
- 2016-04-04 10:04:27
- date last changed
- 2021-02-09 10:15:19
@inproceedings{b60c7abc-f6b2-4164-bcae-fae65dc468b3,
abstract = {{A number of numerical simulations of rack storage fires have been carried out, with various fuel types and burner outputs. Both the standard buoyancy-modified k - turbulence model and a recently developed turbulence model which significantly improves the consideration of the buoyancy effect on turbulence and turbulent transport, were used to study the turbulence of the buoyant flow. The flamelet concept, coupled to a prescribed probability density function, was employed to model the non-premixed combustion process. Sooting was modeled by solving the balance equations for mass fraction and number density considering nucleation, surface growth, coagulation and oxidation. The discrete transfer method was used to calculate radiation, with the radiation properties of the main radiating species - carbon dioxide, water vapour and soot, provided by a fast, narrowband model. The results, including heat flux and gas temperature profile, were analyzed and compared with experimental measurements. The comparisons showed considerably improved agreement for the new model. Copyright International Association for Fire Safety Science.}},
author = {{Yan, Zhenghua and Holmstedt, Göran}},
booktitle = {{Fire Safety Science}},
editor = {{Curtat, Michel}},
isbn = {{0-925223-25-5}},
keywords = {{Fires; Buoyancy; Carbon dioxide; Coagulation; Computational fluid dynamics; Fuel storage; Heat flux; Heat transfer; Probability density function; Soot; Turbulence models}},
language = {{eng}},
pages = {{1075--1086}},
publisher = {{Interscience Communications Ltd}},
title = {{Numerical investigations of rack storage fires}},
year = {{1999}},
}