The dual behavior of the dynamic viscosity of multiwalled carbon nanotubes–Al2O3 (3:7)/ethylene glycol hybrid nanofluids: an experimental studyMohammad Hemmat EsfeEur. Phys. J. Plus, 137 6 (2022) 668DOI: https://doi.org/10.1140/epjp/s13360-022-02782-9