The Effect of Diameter and Position of Transverse Cylindrical Vortex Generators on Heat Transfer Improvement in a Wavy Channel

The present study investigates the effect of outer diameter (10 mm and 15 mm) 5 positions cylindrical vortex generators (CVGs) installed to wavy channel in order improve heat transfer parameters conjunction with low-pressure drops. channels without CVGs are compared terms local coefficient, mean Nusselt number, Colburn factor, friction, thermal performance for Re range 857 8001. Furthermore, cooling air flow direction (forward backward) is assessed. Inserting causes enhancement numbers factors all comparison CVGs. maximum factor TPFB = 0.8229 was achieved position ‘5’ diameter, backward flow, 1677. more efficient forward since gets into valleys a greater extent, thus, better mixing fluid occurs. numerical investigation, conducted Ansys Fluent software, experimental one acquired by holographic interferometry at good agreement coefficients. Finally, new correlating equations number were created.