Abstract
In this research, turbulent flow of water based silicon-oxide nanofluid in a channel with Δ-shaped wavy wall has been scrutinized. Governing equations have been solved by control volume method based on SIMPLE algorithm. To reach desirable geometry, optimization has been done by benchmarking the maximum amount of performance evaluation criteria (PEC) regarding Nusselt number and pressure drop, among five different phase shifts and three different wave amplitudes. After finding optimum phase shift and amplitude, flow field and heat transfer in compulsory displacement of water based silicon-oxide (SiO 2 ) nanofluid with volume fraction from 1% to 4% of nanoparticle has been investigated. Result of simulation showed that the function of wavy channels is almost related to phase shift and amplitude of wavy wall. The topmost function evaluation scale for phase shift 90°, 0.5 mm amplitude in 6,000 Reynolds number has been obtained. The results indicate that water-SiO 2 nanofluid with 4% volume fraction has the highest PEC in comparison with the other studied cases.
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