Comparative Study and Numerical Investigation of Mono and Hybrid Nanofluid-Based Thermal Performance of Different Corrugated Channels

Abstract

The study compares the characteristics of turbulent convective heat transfer in  2-D flow over various corrugated profiles. Mono and hybrid nanoparticle volume fractions and Reynolds numbers were tested, with ranges of 0 to 4% and 10,000 to 30,000, respectively. The analysis uses mono and hybrid nano-fluids (Sio₂ + Al₂0₃) with water to demonstrate how the channels with fixed lengths exhibit varying thermal and fluidic characteristics. These profiles' effects on Heat Transfer Coefficient, Nusselt Number, and Pressure drop variations with Reynolds number are discussed in detail over these channels, and the results are presented comparatively. The SIMPLE Algorithm, Second Order Upwind Difference Scheme and Finite Volume Method (FVM) are used to discretize governing equations. The triangular channel has the largest pressure drop when mono and hybrid nano-fluid is transported through these corrugated channels in a certain Reynolds number range. For these flow circumstances, sinusoidal, trapezoidal, and plane channels follow in order of highest pressure drop. Also, when we compared the results obtained using water, mono, and hybrid nano-fluid, it was noticed that when the percentage of nanoparticles rose, there was an increase in pressure drop, Nusselt number, and heat transfer coefficient. It also found that the transport of heat would increase when the percentage of nanoparticles increases to 2% above that friction factor increases and TPF decreases.