Tyrinov A. Heat-mass exchange and hydrodynamics of heat engineering micro-and nanosystems

The applied-scientific problem of multiscale development of complex numerical -analytical approach to study of heat and mass transfer and fluid flow is solved. It allows modeling of processes in wide range of spatial and temporal scales taking into account the flow regimes. Using the model of J. Buongiorno distributions of nanoparticle concentrations and temperature, heat transfer in film boiling and condensation of nanofluids were analyzed. The analysis of the fluid flow instability in the curved micro-channels is shown that an Increasing slipping leads to the growth of critical values of Taylor and Dean numbers. The lattice Boltzman method was tested in the simulation of heat transfer and fluid flow in flat micro-channel, micro pipe, rectangular and curvilinear microchannels. On the basic of molecular dynamics method computer simulation of water molecules motion of through the nanotubes was carried out. Computer simulation of structure-formation processes in colloidal systems was performed. In general in present work it shows that the proposed method allows to analyze complex heat and mass transfer and fluid dynamics processes in all the thermo physical micro systems in, meso and nano ranges.