Heat transfer treatment of nanomaterial with considering turbulator effects

Abstract

In current context, applying multi tapes were recommended as promising technique for augmentation cross section flow. Type of carrier fluid was changed with adding copper oxide nano powders with fraction of 0.04. Residence time improves with applying tapes and nanoparticles pass longer path inside the pipe. Gravity has no impact in momentum equation due to high velocity and owing to presence swirl flow device; k-ɛ technique was applied. For verification, empirical formula for estimating Nu was involved. Recirculation zone augment as b increases and stronger secondary flow generates thinner layer near the surface and make it cooler. Greater pressure loss is an output of more interaction of nanomaterial with solid surfaces and this phenomenon occurs in existence of tapes. Owing to longer paths of nano particles, pressure loss augments with growth of b and Re. Cooling rate enhances about 3.77% and 128.9% with rise of b and Re. Growth of Re enhances the increasing trend of Sgen,f. This function augments about 64.41% with rise of b at highest Re. Also, growth of b leads to reduction in Sgen,th about 3.09%.