Numerical Simulation of Thermal Fluctuation of Hot and Cold Fluids Mixing in a Tee Junction

Gao, Kai;Lu, Tao

  • Received : 2015.08.22
  • Accepted : 2015.11.25
  • Published : 2015.12.31


In this work, mixing processes of hot and cold fluids of three different jet types are predicted by large-eddy simulation (LES) on FLUENT platform. Temperature at different positions of internal wall and mixing conditions of T-junctions at different times are obtained, then the simulated normalized mean and root-mean square (RMS) temperature, temperature contour and velocity vector of every case are compared. The results indicate that, the mixing regions in the tee junction is related to the jet type, and temperature fluctuations on the pipe wall in the type of the deflecting jet is the least.


tee junction;mixing;thermal fluctuation;large-eddy simulation


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Supported by : National Natural Science Foundation of China