Heat transfer in a wall jet propagating in a highly turbulent cocurrent flow

Heat transfer in a jet propagating in a cocurrent flow has been studied over wide ranges of the injection ratio ($m=U_S/U_0<1$ and $m>1$) and flow turbulence $(\mathrm{Tu}_0=0,2-25\%)$. It is shown experimentally that for $m<1$, a $1\%$ increase in turbulence leads to a $1\%$ increase in heat transfer, and the wall adiabatic temperature and the relative heat-transfer function should be taken into account in heat-transfer calculations. For $m>1$, the flow turbulence does not affect the heat transfer and the heat production can be calculated using the laws typical of jet flows.