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In both cases (1m and 2 m height), I did not reach heat flux between 10-16 kw/m2.Heat flux at 2 m is always higher than at 1 m height (which is the opposite case with the experiment).PS: In the sample case attached, the meshing is 0.1 m. ( I changed the fuel type, similar error received. RADIATIVE_FRACTION is now specified on REAC. When I specify on the RADI line, RADIATIVE_FRACTION = 0.4, I receive the following error saying: I tried to increase the Number of Radiative Angles, however no big improvement was shown. While using the last version, in all the run cases I tried, always, the heat flux at 2 m is higher than at 1 m, which were around 7 and 6 kw/m2 respectively. Whereas at height 2 m, the measured heat flux was around 4-6 kw/m2. At height 1 m, the measured Heat flux was between 10 and 16 kw/m2 in general during that period of time. The problem that I'm having is that during the experiment, from around 2 min ( where the HRR got almost into the steady plato) untill 15 min, the heat flux measured at 1 m distance from the center of the pool. I'm running pool fire with Karosene as a main fuel. I would really be thankful if you can help me with this issue.

Radiation on surface pyrosim