The thermophysical characteristics of nanofluids are now a topic of discussion in this work. Nanofluids' viscosity, thermal conductivity, and heat transfer are taken into account. We provide experimental and molecular dynamics results. It is shown that conventional models are often unable to account for the viscosity and thermal conductivity of nanofluids. The size, substance, and volume concentration of the particles, as well as their concentration in the fluid, all affect the transport coefficients of nanofluids. While heat conductivity rises with increasing particle size, viscosity decreases as particle size increases. We talk about the causes of this behaviour. The nanofluid flow mode (laminar or turbulent) dictates the heat transfer coefficient. The magnitude of the heat transfer coefficient is considerably impacted by the usage of nanofluids as a coolant. The heat transfer coefficient of nanofluids in laminar flow is always substantially higher than that of a base fluid. It has been demonstrated that a 2% nanofluid increases heat exchange intensity more than twice as much as water. The outcome of employing nanofluids in turbulent mode depends on both the viscosity and thermal conductivity of the fluid.

Effect of Nanoparticles, Thermophysical, Properties of Nanofluid, Thermal Conductivity, Heat Transfer.