Momen Hassan is a Master’s student in the Mechanical Engineering Program within the Physical Science and Engineering (PSE) Division at KAUST, conducting his thesis research in the MuRE group under the supervision of Prof. Pedro Castaño. Originally from Sudan, Momen earned his B.Sc. in Mechanical Power Engineering from Cairo University in 2024. Before joining KAUST, he worked in Egypt as a Mechanical, Electrical, and Plumbing (MEP) design and handover engineer, and mentored senior undergraduate students in HVAC systems. His research focuses on thermal-fluid systems, numerical methods, and multiphase flow. Momen’s current thesis work investigates a pseudo-2D fluidized bed gas-solid reactor, combining experimental optical measurements with multiphase Computational Fluid Dynamics (CFD) validation using tools like Ansys Fluent and OpenFOAM.