TY - JOUR
T1 - Predictions of free jet fires from high pressure, sonic releases
AU - Cleaver, R. P.
AU - Cumber, P. S.
AU - Fairweather, M.
PY - 2003/2/1
Y1 - 2003/2/1
N2 - A numerical model for predicting jet fires resulting from high pressure, sonic releases of natural gas is described. The model is based on solutions of the density-weighted forms of the fluid flow equations. It is capable of accurately resolving the near-field shock structure that occurs in these flows through the use of a compressibility corrected version of the k-e turbulence model, and also includes sub-models for the flame lift-off height and a prescribed probability density function/laminar flamelet model of the turbulent non-premixed combustion process. Radiation heat transfer is described using an adaptive version of the discrete transfer method, with solutions of the radiation heat transfer equation obtained using a statistical narrow band approach. The complete model is demonstrated to yield plausible predictions of the structure of both the near-field non-reacting and subsonic combusting zones within wind blown fires, and to provide realistic predictions of flame lift-off heights, mean temperatures, trajectories and the radiation fluxes received about a number of field-scale jet fires. © 2003 The Combustion Institute. All rights reserved.
AB - A numerical model for predicting jet fires resulting from high pressure, sonic releases of natural gas is described. The model is based on solutions of the density-weighted forms of the fluid flow equations. It is capable of accurately resolving the near-field shock structure that occurs in these flows through the use of a compressibility corrected version of the k-e turbulence model, and also includes sub-models for the flame lift-off height and a prescribed probability density function/laminar flamelet model of the turbulent non-premixed combustion process. Radiation heat transfer is described using an adaptive version of the discrete transfer method, with solutions of the radiation heat transfer equation obtained using a statistical narrow band approach. The complete model is demonstrated to yield plausible predictions of the structure of both the near-field non-reacting and subsonic combusting zones within wind blown fires, and to provide realistic predictions of flame lift-off heights, mean temperatures, trajectories and the radiation fluxes received about a number of field-scale jet fires. © 2003 The Combustion Institute. All rights reserved.
KW - Fires
KW - Jets
KW - Mathematical modeling
KW - Sonic flow
UR - http://www.scopus.com/inward/record.url?scp=0037289682&partnerID=8YFLogxK
U2 - 10.1016/S0010-2180(02)00491-1
DO - 10.1016/S0010-2180(02)00491-1
M3 - Article
VL - 132
SP - 463
EP - 474
JO - Combustion and Flame
JF - Combustion and Flame
IS - 3
ER -