Hayder is the head of the Physics department/college of the education / University of Garmian. He has achieved a Ph.D. in Mechanical engineering / University of Nottingham, UK, MSc. In a Mechanical engineering / University of Baghdad, Iraq, and BSc in a Nuclear engineering / University of Baghdad. He has published many research in high-ranking Journals. He works as an editorial board journal of new energy developments. Also, he has recognized as a member of the Elsevier Reviews platform by the International Journal of Heat and mass transfer. His research interests are in Fluid mechanics, Multiphase flow, Heat transfer (convection & conduction), Thermodynamic, Phase change, Nanoparticles & Nanofluid, Turbulent and laminar flows, Computational Fluid Dynamics (CFD), Numerical modeling, Refrigeration systems, Boiling (flow & pool) processes, Multiphase boiling, Condensation process, Evaporation process, and Heat exchangers