If flow is turbulent, a significant change in local temperature occurs at the boundary layer, but only along the heat transfer surfaces. VisiMix provides the values of the temperature on these surfaces in the HEAT TRANSFER sections.
Differences in local temperatures for the bulk of mixing reactors in a turbulent regime are always below the boundaries of practical importance. This is because the heat conductivity of liquids is about 1000 times higher than diffusivity, and the maximum rate of local heat release cannot be too high because of the turbulent mixing. These results are in complete agreement with the mathematical models used by VisiMix. At some point in our research we conducted a special study on this topic, and we were able to achieve a measurable difference of local temperatures only in experimental mixing vessels of a very special design.
For all practical purposes, temperature in bulk of reactors in a turbulent mixing regime can be treated as uniform.