Abstract
The aim of this research is to investigate the effects of freestream turbulence (FST) in a main flow on turbulent structure and heat transfer in turbulent boundary layers (TBLs) by means of direct numerical simulation (DNS). The FST is generated by a turbulence-generating grid as in previous experimental studies. The results show that instantaneous and mean temperature profiles are affected by the FST in the outer region of the TBL. The rms temperature normalized by the friction temperature is enhanced by the FST.
