Heat transfer 86 heat transfer 32 Mass transfer 24 Cooling 23 Heat flux 20 Nanofluidics 19 Performance 18 Reynolds number 18 Computational fluid dynamics 17 Heat convection 17 Thermal conductivity 17 Heat transfer coefficients 16 Numerical methods 15 Nusselt number 15 Phase change materials 14 Flow of fluids 13 Magnetohydrodynamics 13 Nanofluids 13 Drops 12 Numerical models 12 Boundary layers 11 Heat and mass transfer 11 Heat storage 11 Natural convection 11 Porous materials 11 Temperature 11 Heat transfer co-efficients 10 Specific heat 10 Air 9 Efficiency 9