Heat transfer enhancement around a finned vertical antenna by means of porous media saturated with Water-Copper nanofluid

Combination of porous media and nanofluids is used to improve heat transfer around a vertical finned cylindrical antenna generating high flux. This technique ensures correct operation this electronic device under the conditions recommended by manufacturers. active component enclosed inside another concentric quasi-cylindrical cavity maintained at low temperature. Cooling carried out via highly materials various thermal conductivities, saturated with Water-Copper nanofluid whose volume fraction varies between 0% (pure water) 5%. Natural convective quantified means average Nusselt number. A new Nusselt-Rayleigh correlation proposed in 2.53 × 105 5.13 107 Rayleigh number range. The ratio conductivity material that water (base fluid) was varied 4 41.2. results obtained show that, as compared reference case working fluid, no present), improvements up 65% can be upper limit region span numbers considered. study has been performed numerical approach based on control method using SIMPLE algorithm.