Zahra, TrianiTrianiZahraPeric, RobinsonRobinsonPericAbdel-Maksoud, MoustafaMoustafaAbdel-Maksoud2026-09-012026-09-012026-0411th World Congress on Momentum, Heat and Mass Transfer, MHMT 2026https://hdl.handle.net/11420/64564A similarity law is derived to enable the controlled investigation of flow phenomena inside a trickle-bed reactor for liquid organic hydrogen carrier (LOHC) hydrogenation. This allows reactor behavior to be studied in cold-flow experiments, using scaled geometries operated at room temperature, while preserving the relevant hydrodynamic characteristics of the actual reactor. The validity of the similarity law is assessed through a combination of computational fluid dynamics (CFD) simulations and cold-flow experiments using a simplified model. The results demonstrate that the scaling based on the proposed similarity law provides a reliable pathway for reproducing and analyzing key flow characteristics of trickle-bed reactors under safe and observable experimental conditions.enColdFlow ExperimentsComputational Fluid DynamicsFlow SimilarityLiquid Organic Hydrogen CarrierTrickle-Bed ReactorsTechnology::620: EngineeringConference Paper10.11159/icmfht26.140