%0 Journal Article %T Optimizing the thermal performance of a double-pipe heat exchanger using twisted tapes with variable cuts and Fe3O4 nanofluid %A VARMA, K.P.V.K. %A NAVEEN, N.S. %A KISHORE, P.S. %A PUJARI, S. %A JOGI, K. %A RAJU, V.D. %J Journal of Thermal Engineering %D 2024 %V 10 %P 1184-1197 %R 10.14744/thermal.0000860