Computational study of Cattaneo–Christov heat flux on cylindrical surfaces using CNT hybrid nanofluids: A solar-powered ship implementation

This study examines the potential of using nanofluids in solar thermal energy systems. Nanofluids are known to exhibit high convection heat transfer coefficients, low specific heat, and density, making them ideal for improving performance However, this computational investigates application Cattaneo-Christov flux on cylindrical surfaces carbon nanotube (CNT) hybrid nanofluids, use a solar-powered ship. The work utilizes numerical simulations analyze fluid flow characteristics nanofluids. research single-walled multi-walled nanotubes (SWCNT MWCNT) engine oil (EO) as working fluid. Galerkin weighted residual method (GWRM) is utilized solve ordinary differential equations (ODEs) governing system. impact various parameters, such flux, radiation, nonlinear stretching surface, slippery velocity, porous media velocity equation, entropy generation investigated elaborated through detailed plots. findings show that MWCNT-SWCNT/EO nanofluid (HNF) exhibits maximum efficiency around 2.4%, while minimum at 2.7%. provides valuable insights into design optimization systems sustainable transportation.