Turbulent heat and mass transfer have an essential role in the processes of thermal pollution. In the last decade most part of the researching papers illustrates only the thermal flow dependence by the Prandtl number. Determination of the temperature field in a moving fluid in the presence of solid surfaces with different temperatures compared with the fluid temperature is illustrated in this scientific paper. It is considered a random distribution of the solid surface, with different temperature.

In this paper by using the superposition of the molecular and turbulent viscosity and by creating interdependence between the molecular and turbulent transfer coefficients it is estimated the mathematical model of the velocity profile for the fluid flow and the temperature distribution. It is used also the concept of the laminar substrate with different thicknesses for the hydrodynamic flow with heat transferred and for the mass transfer. The obtained mathematical model is correlated with the semi-empirical data from the literature. By numerical modeling the obtained results and compared with the experimental measurements and it is determined a dependence between the Stanton number and the Prandtl number. The numerical results             demonstrate a good agreement with the experimental results in a wide range of Prandtl numbers from 0.5 to 3000. Finally are mentioned some conclusions and references.


Temperature Distribution in a Turbulent Flow in the Heat Pollution Phenomena

Division / Sponsors: 
Heat Transfer Division (HTD), Fluids Engineering Division (FED)

Heat Transfer Summer Conference
Paper Proceedings: https://asmedigitalcollection.asme.org/HT/HT2020/volume/83709

18th International Conference on Nanochannels, Microchannels, and Minichannels
Paper Proceedings: https://asmedigitalcollection.asme.org/ICNMM/ICNMM2020/volume/83693

Fluids Engineering Division Summer Meeting
Paper Proceedings: https://asmedigitalcollection.asme.org/FEDSM/FEDSM2020/volume/83716

HT-ICNMM2020 - Virtual Conference, SHTC - Virtual Conference, FEDSM2020 - Virtual Conference

Supporting the need among researchers worldwide for additional online and multimedia content, ASME now offers the ASME Conference Video Collection. This platform will collect and provide long-term access to conference presentation videos, encompassing all technology areas within ASME's technical conference and events program. About 30,000-40,000 engineers across all mechanical engineering and related disciplines participate in ASME conferences each year. This includes authors of approximately 6,000 to 8,000 technical papers published by ASME, the majority of whom also submit video presentations for our virtual conferences. The video collection will be available as an add-on to existing product packages or as a separate subscription.