1. To investigate the heat transfer and friction factor of nanofluids flowing through enhanced tube fitted with freely rotating swirl generator.
2. To study the effects of the parameters such as Reynolds number, particle concentration and freely rotating swirl flow device on the heat transfer performance and friction characteristics of enhance tube compared with common plain tube.
3. To propose the new correlations to predict the Nusselt number and friction factor of nanofluids flowing through enhanced tube with turbine type swirl generator.
