Im looking for theoretical models to estimate the viscosity and thermal conductivity of a nanofluid containing nanosheets, but all of the models consider nanoparticle as a sphere not a sheet.
There are lots of existing models which is based on the size and shape of nanoparticles. But these are only for spheres cylindrical particles.For sheet means we have two dimensional structure. In this case we have to do some experimental analysis as well as the theoretical analysis and then we have to develop a new shape oriented structure.
Look on Science Direct for some reviews on thermal properties of nanofluids. I remember that I found something a bout this few time ago...but I did not saved the article, because there was no interest for me at that time.