Hi All,
I have set up a coupled CFD+DEM simulation to study the particles temperature drop by the cold wind. The initial particle temperature is 393K, the initial wind temperature is 293K. However, after 1800s, the lowest particle temperature is 248K (-25C) and highest temperature is 549K (275C). For the whole system at initial, the highest temperature is 393K and lowest temperature is 293K. It seems unreasonable for the particle temperature drop or increase so much. Could anyone please discuss about the possible reasons for that?
Thanks!
Kun