Numerical Prediction for the Size and Shape of a Flare in a Cross-Wind

Abstract

A COMPUTATIONAL FLUID-DYNAMICS MODEL IS USED TO SIMULATE THE TURBULENT COMBUSTION IN A FLARE EX POSED TO A CROSS-WIND. OUR RE SEARCH IS MOSTLY FOCUSED ON THE CROSS FLOW VELOCITY INFLUENCE TO FLAME AERODYNAMICS. THE FLOW SIMULATION IS PER FORMED AS THREE DIMENSIONAL ALONG A CARTESIAN COORDINATES SYSTEM. IN ORDER TO SIMULATE THE COMBUSTION PROCESS, A FAST-CHEMISTRY MODEL WITH A 1-STEP GLOBAL IRREVERSIBLE REACTION TO FORM CO2 AND H2O IS USED. A RADIATION MODEL IS USED TO IDENTIFY THE MEAN FLAME TRAJECTORY. THE SIMULATED CONFIGURATION CONSISTS IN A PROPANE DISCHARGE INTO AN AIR STREAM, GET TING OXYGEN SUPPLY FROM THE CROSS-WIND. THE VELOCITY OF THIS CROSS-FLOW IS IN CREASED FROM 0.8 M/S TO 12 M/S. COMPARATIVE ANALYSIS OF OUR PREDICTED VALUES WITH RESPECT TO AVAILABLE EXPERIMENTAL RESULTS SHOWS GOOD AGREEMENT IN TERMS OF FLAME LENGTH AS WELL AS INCLINATION ANGLES.