Modification of low Reynolds number k-ɛ turbulence models for applications in supercritical fluid flows

► Convective heat transfer to supercritical fluid flows has been numerically investigated. ► Various areas of modifications have been tried and a new LRN k-ɛ turbulence model has been introduced. ► The Most Modifications have been done on damping function, ɛ equation, Prt, and density variations. ► Improvement of the results includes both enhanced and deteriorated regimes of heat transfer.