Experimental and numerical studies of smoke dynamics in a compartment fire

Betting, Benjamin; Varéa, Emilien; Gobin, Carole; Godard, Gilles; Lecordier, Bertrand; Patte-Rouland, Béatrice

doi:10.1016/j.firesaf.2019.102855

Cited by 16 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The validation of the built-up numerical model was possible thanks to the experimental data published by Betting et al [25]. Figures 4 and 6 prove the high reliability of the numerical model-the results are in good accordance with the reported data.…”

Section: Validation Of the Adopted Assumptionssupporting

confidence: 69%

“…Figure 6 presents a square region of the vertical symmetry plane going in through the middle of the roof opening. The square is positioned just beneath the ceiling (marked in Figure 7) and corresponds to the region where the PIV measurements were carried out [25]. The presented snapshot was also taken at the 300th second of the fire development(exactly as in the real experiment).…”

Section: Resultsmentioning

confidence: 99%

“…The experiment was carried out by Betting et al [25]. It was a series of test fires in a confined space with a limited fresh air supply.…”

Section: Description Of the Modeled Real Experimentsmentioning

confidence: 99%

“…The paper includes a description of the principles of fluid flow modeling and briefly discusses combustion modeling, which proves important as some model details refer directly to the physical foundations of fluid flow modeling. It also includes a description of the real fire experiment carried out by Betting et al [25] and a detailed description of the built-up numerical model, with justification of some of the adopted assumptions. The results, split into two parts, model validation and the backdraft phenomenon analysis, are presented in the third section, followed by the conclusions.…”

mentioning

confidence: 99%

“…Comparison of the velocity fields measured in the experiment[25] (a) and calculated (b). Vectors colored according to the horizontal velocity component.…”

mentioning

confidence: 99%

See 4 more Smart Citations

A Numerical Study on Fire Development in a Confined Space Leading to Backdraft Phenomenon

Król

Krawiec

2020

Energies

View full text Add to dashboard Cite

This paper presents the results of numerical experiments on fire development and the backdraft phenomenon. The numerical model of fire development built with the use of Ansys Fluent was then validated based on literature data taken from real fire experiments. Some theoretical foundations of airflow and combustion modelling were added. Some features of the numerical model, which allowed for its high accuracy to be achieved, were widely discussed. Since large buoyancy forces were involved, to reproduce the decrease of the atmospheric pressure with height, a variable static pressure was applied using UDF (user-defined function).The results showed good accordance taking into account both the temperature profiles and the distribution of the airflow velocity. Once the model was validated, the research was extended to examine the backdraft phenomenon. The results revealed characteristic phases of the phenomenon and the occurrence of the gravity current as well, which were reported by empirical experiments.

show abstract

Section: Validation Of the Adopted Assumptionssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 99%

“…The experiment was carried out by Betting et al [25]. It was a series of test fires in a confined space with a limited fresh air supply.…”

Section: Description Of the Modeled Real Experimentsmentioning

confidence: 99%

mentioning

confidence: 99%

“…Comparison of the velocity fields measured in the experiment[25] (a) and calculated (b). Vectors colored according to the horizontal velocity component.…”

mentioning

confidence: 99%

See 3 more Smart Citations

A Numerical Study on Fire Development in a Confined Space Leading to Backdraft Phenomenon

Król

Krawiec

2020

Energies

View full text Add to dashboard Cite

show abstract

Experimental and Numerical Studies of Multi-compartment Spreading Fire in a Full-Scale Steel Framed Building

Ruan

Zhao²,

Song³

et al. 2022

Fire Technol

View full text Add to dashboard Cite

Pool Fires Within a Large Under-Ventilated Environment: Experimental Analysis and Numerical Simulation Using OpenFOAM

Cavazzuti,

Tartarini

2024

Fire Technol

View full text Add to dashboard Cite

Experimental analyses and numerical simulations are carried out on a test case involving an heptane pool fire within a large under-ventilated environment. During the experiments, the temperature history at several locations within the room is monitored by means of thermocouples, and the fire radiative heat transfer estimated through a plate thermocouple. The experimental layout is then replicated numerically and tested using OpenFOAM CFD code. The study is a preliminary analysis performed for code validation purposes on a full-scale fire scenario. The results of the simulations are compared to the experimental results and critically analysed, finding a reasonable agreement overall. Critical issues in fire modelling are also highlighted. In fact, due to the problem complexity and the limitations of the numerical models available some important aspect that can significantly influence the outcome of the simulations must be calibrated a posteriori, somewhat limiting the general predictive applicability of the fire models. Primarily, these are the heat release rate history, the combustion efficiency, and, to a lesser extent, the convective heat transfer boundary condition at the wall.

show abstract

Experimental and numerical studies of smoke dynamics in a compartment fire

Cited by 16 publications

References 10 publications

A Numerical Study on Fire Development in a Confined Space Leading to Backdraft Phenomenon

A Numerical Study on Fire Development in a Confined Space Leading to Backdraft Phenomenon

Experimental and Numerical Studies of Multi-compartment Spreading Fire in a Full-Scale Steel Framed Building

Pool Fires Within a Large Under-Ventilated Environment: Experimental Analysis and Numerical Simulation Using OpenFOAM

Contact Info

Product

Resources

About