Investigation of entropy generation of MHD ethylene glycol nanofluid

Entropy generation of nanofluid between two stretching rotating discs under the effect of magnetohydrodynic (MHD) and Thermal radiation has been studied in this paper. In this research Ethylene glycol (CH2oH)2 is used as based fluid and CNTs which include both single-walled carbon nanotube (SWCNT) and multiwall cabin nanotube (MWCNT) are used as nanoparticles. The nonlinear governing equations are solved using the Runge Kutta method and the effect of Radiation parameter, magnetic, porosity, suction/injector and Brikman number on Total Entropy generation and Bejan number are explored. The results are compared to two different nanoparticles and the results showed that the total entropy generation is increased with increasing the thermal radiation and volume fraction of nanoparticles.

Keywords:

Entropy generation , CNTs , ethylene glycol , Thermal radiation , MHD , rotating discs