From the literature, I found that in the natural convection heat transfer in nanofluids, addition of nano-particles causes the strong convection currents that are mainly experienced in the plume regions to diminish which will cause a disappearance of the plume region. Both phenomenon, convection currents and plume regions, are different from each other and also have effect on each other. But, I am not getting that what plume region means and how convection currents affects the plume regions?
Thank you Mojtaba Edalatpour Sir. But what are the differences between the thermal plumes and convection currents?
A plume may be considered as the group of a fluid particles passing through another fluid. Generally, the density of the plume fluid is greater than that of the fluid in its surroundings, but if the plume fluid has sufficient momentum to carry it in upward direction, then this plume fluid is considered as negatively buoyant. This affects the required buoyancy force and convective currents.
I hope, this may help you.
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