Spray Combustion with FGM, occurs wrong temperature distribution.
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Dear all,
I am conducting spray combustion, which actived the DPM and FGM model. Two cases have been simulated, both of them occured questions on temperature distribution.
The first case is spray with low-velocity air and normal temperature conditions, which the values are 0.245m/s and 300K, though combustion could give a relative accuracy result, but close to the inject faceplate, there was no flame, which cannot compared with experimental data. Temperature distribution shows as Fig.1. The particle contour reveals the temperature maintain 300K, which is the inlet condition of DPM, when I attempted to patch progress as 1 and temperature as 2000K, the case will totally wrong.
Changes of air velocity and temperature in the second case, with the values are 2.5m/s and 1400K. This time the flame shows a good performance, while the temperature in centeral region is higher than experimental data. As Fig. 2 shows.
The time step of them is 1e-5 s.
Fig.1 Temperature distribution in case1.
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Fig. 2. Comparsion between simulate result and experimental(line represents simulation).
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